HomeMy WebLinkAboutSEA-AEE-JNU Bartlett Hospital 2012-EE
Bartlett Regional Hospital
City and Borough of Juneau
Funded by:
Final Report
March 2012
Prepared by:
Energy Audit
Table of Contents
Section 1: Executive Summary 2
Section 2: Introduction 6
Section 3: Energy Efficiency Measures 9
Section 4: Description of Systems 23
Section 5: Methodology 28
Appendix A: Energy and Life Cycle Cost Analysis 31
Appendix B: Energy and Utility Data 45
Appendix C: Equipment Data 52
Appendix D: Abbreviations 61
Audit Team
The energy audit is performed by Alaska Energy Engineering LLC of Juneau, Alaska. The audit team
consists of:
Jim Rehfeldt, P.E., Energy Engineer
Jack Christiansen, Energy Consultant
Brad Campbell, Energy Auditor
Loras O’Toole P.E., Mechanical Engineer
Will Van Dyken P.E., Electrical Engineer
Curt Smit, P.E., Mechanical Engineer
Philip Iverson, Construction Estimator
Karla Hart, Technical Publications Specialist
Jill Carlile, Data Analyst
Grayson Carlile, Energy Modeler
Acknowledgment and Disclaimer
Acknowledgment: "This material is based upon work supported by the Department of Energy under
Award Number DE-EE0000095.
Disclaimer: "This report was prepared as an account of work sponsored by an agency of the United
States Government. Neither the United States Government nor any agency thereof, nor any of their
employees, makes any warranty, express or implied, or assumes any legal liability or responsibility
for the accuracy, completeness, or usefulness of any information, apparatus, product, or process
disclosed, or represents that its use would not infringe privately owned rights. Reference herein to
any specific commercial product, process, or service by trade name, trademark, manufacturer, or
otherwise does not necessarily constitute or imply its endorsement, recommendation, or favoring by
the United States Government or any agency thereof. The views and opinions of authors expressed
herein do not necessarily state or reflect those of the United States Government or any agency
thereof.
Bartlett Regional Hospital 1 Energy Audit (March 2012)
Section 1
Executive Summary
An energy audit of the Bartlett Regional Hospital was performed by Alaska Energy Engineering LLC.
The investment grade audit was funded by Alaska Housing Finance Corporation (AHFC) to identify
opportunities to improve the energy performance of public buildings throughout Alaska.
Bartlett Regional Hospital is a 138,909 square foot building that contains commons, offices, clinic,
laboratory, surgery, recovery, kitchen and dining, laundry, storage, and mechanical support spaces.
Building Assessment
The following summarizes our assessment of the building. Detailed information on recommendations
is found in Section 3, Energy Efficiency Measures.
Envelope
The building envelope of Bartlett Regional Hospital appears to be well maintained and looks to be in
good condition. Roofing improvements were underway during the audit. Although the majority of the
building has undergone fairly recent remodels, the building is not without envelope issues, which
include:
Wall Insulation: Exterior walls in the 1968 and 2005 portions of the building are underinsulated
for today’s energy costs. These walls utilize 3-1/2” of batt insulation and a 1” rigid insulation
thermal break between the metal studs and the concrete walls; a thermal resistance of R-15. An
R-26 wall is currently optimal. Metal studs greatly reduce the insulation value of exterior wall
assemblies; we recommend a thermal break of rigid insulation be used with metal stud walls.
Entrance: The main building entrance consists of an aluminum storefront assembly with an R-
1.5 thermal resistance. Future remodels and additions should utilize more energy efficient
methods of bringing outdoor light into these spaces.
Green Roof: The roof over the north plaza utilizes 4” of foam covered by 8” – 18” of topsoil.
This results in an insulation package value of approximately R-20, far below the R-46 optimal
level for the Juneau climate.
Exterior Doors: Exterior doors are not thermally broken and many are uninsulated. Future
exterior door replacement selection should include these features. Weather stripping is in poor
condition on many of the exterior door units and should be replaced.
Bartlett Regional Hospital 2 Energy Audit (March 2012)
Heating System
The building is heated by two oil-fired steam boilers that provide heat to twelve air handling unit
systems, fan coil units, and perimeter hydronic systems.
At the time of the audit one boiler was running and the remaining boiler was isolated for
maintenance; however, the typical mode of operation has the secondary boiler on-line and not
isolated. Circulating heating water through a non-necessary boiler results in a significant amount of
heat loss.
Boiler stack heat recovery is often used to preheat feedwater and improve heating plant efficiency.
Adding a heat recovery unit is not recommended because it will not fit the current installation.
Many opportunities were identified during the audit to utilize heat generated within the building
envelope in other interior spaces instead of exhausting it directly outside. These include electrical and
server rooms, as well as mechanical spaces throughout the building.
The remainder of the fuel oil boiler heating system appears to be in good condition; however, fairly
simple improvements can be made to improve its effectiveness and efficiency.
Ventilation Systems
The building has twelve air handling unit systems, fan coil units, and perimeter hydronic systems.
Numerous issues were found with the setpoints, control sequences, and damper operations of the air
handling units.
Most of the exhaust fans in the building appear to be operated continuously. This method of operation
requires energy for fan motors and for the conditioning and supply of makeup air to replace the
exhaust air. Exhaust fan operations should be reviewed to reduce energy.
Of note, only mushroom-style exhaust fans are utilized for all rooftop mounted units at the hospital.
None of exhausts are placarded with any information identifying the source of the exhaust air.
Directly exposing anyone on the rooftop to air that poses a health hazard, such as the Isolation
Rooms, should be avoided. The source of the air should be identified on exhausts and a different style
fan should be used for air that may pose a health hazard.
Cooling Systems
The building has five major separate mechanical cooling systems. Rooftop chilled water units WCU-
1 and WCU-2 provide cooling for ASU-1, 11, 12, 13, 14, and 17. Rooftop chilled water units WCU-3
and WCU-4 provide cooling for ASU-15, 18, 19, and the CT and MRI spaces. A packaged cooling
unit provides cooling for the computer server room.
These mechanical cooling systems operate year round to supply chilled water. A dry cooler that
produces chilled water using natural cooling is more energy efficient; however, dry coolers are only
effective when outside temperatures are below 30°F. Average maximum temperatures in Juneau are
only below 30°F in the month of January. For this reason, dry coolers are not recommended
Automatic Control System
The building has a DDC system to control the operation of the heating and ventilation systems.
Energy can be saved through further optimization of fan system scheduling combined with a retro-
commissioning of the air handler systems.
Bartlett Regional Hospital 3 Energy Audit (March 2012)
Lighting
Although some T-12 lighting remains in the mechanical spaces, interior lighting consists primarily of
T5 and T8 fluorescent fixtures. We recommend that maintenance staff upgrade the remaining T-12
fixtures to more efficient T-8 units only as the ballasts fail and need to be replaced.
Exterior lighting consists primarily of metal halide lighting with some high pressure sodium fixtures.
Summary
It is the assessment of the energy audit team that the majority of the building energy losses are due to
operation and control of the heating and ventilating system. Recommendations for correcting these
issues are contained in Section 3, Energy Efficiency Measures.
Energy Efficiency Measures (EEMs)
All buildings have opportunities to improve their energy efficiency. The energy audit revealed
numerous opportunities in which an efficiency investment will result in a net reduction in long-term
operating costs.
Behavioral and Operational EEMs
The following EEMs require behavioral and operational changes in the building use. The savings are
not readily quantifiable but these EEMs are highly recommended as low-cost opportunities that are a
standard of high performance buildings.
EEM-1: Weather-strip Doors
EEM-2: Close Fume Hood Sashes
EEM-3: Optimize ASU-2 System
EEM-4: Optimize ASU-3 System
EEM-5: Optimize ASU-11 System
EEM-6: Disable Chilled Water Systems WCU-1/2
Bartlett Regional Hospital 4 Energy Audit (March 2012)
High Priority EEMs
The following EEMs are recommended for investment. They are ranked by life cycle savings to
investment ratio (SIR). This ranking method places a priority on low cost EEMs which can be
immediately funded, generating energy savings to fund higher cost EEMs in the following years.
Negative values, in parenthesis, represent savings.
High Priority 25-Year Life Cycle Cost Analysis
Energy Efficiency Measures Investment Operating Energy Total SIR
7: Turn Off Standby Boiler $1,000 $34,100 ($913,300) ($878,200) 879.2
8: Reduce Fan Operating Hours $800 $17,000 ($443,700) ($425,900) 533.4
9: Optimize ASU-18 System $3,500 $0 ($1,795,400) ($1,791,900) 513.0
10: Perform Boiler Combustion Test $700 $16,300 ($223,800) ($206,800) 296.4
11: Install Pipe Insulation $500 $0 ($38,000) ($37,500) 76.0
12: Optimize ASU-12 System $8,000 $0 ($319,900) ($311,900) 40.0
13: Optimize HVAC-1 System $3,200 $0 ($121,100) ($117,900) 37.8
14: Optimize ASU-13 System $8,000 $0 ($293,600) ($285,600) 36.7
15: De-Lamp Vending Machines $100 $0 ($3,100) ($3,000) 31.0
16: Install Room 3374 Heat Recovery $3,200 $0 ($95,800) ($92,600) 29.9
17: Optimize ASU-4 System $15,100 $0 ($265,600) ($250,500) 17.6
18: Repair ASU-15 Duct Insulation $1,000 $0 ($14,900) ($13,900) 14.9
19: Optimize Electric Rm 1152 Heat Recovery $2,000 $0 ($24,500) ($22,500) 12.3
20: Install Room 3363 Heat Recovery $3,600 $0 ($42,000) ($38,400) 11.7
21: Optimize ASU-1 Heat Recovery System $30,200 $0 ($331,600) ($301,400) 11.0
22: Optimize ASU-17 System $8,400 $0 ($78,300) ($69,900) 9.3
23: Install Room 3482 Heat Recovery $3,200 $0 ($29,400) ($26,200) 9.2
24: Optimize ASU-15 System $62,900 $0 ($491,600) ($428,700) 7.8
25: Optimize Snowmelt System-Heli Pad $14,200 $0 ($103,000) ($88,800) 7.3
26: Optimize WCU-1/WCU-2 $1,800 $0 ($10,900) ($9,100) 6.1
27: Install Heat Recovery Systems $934,200 $40,900 ($5,113,300) ($4,138,200) 5.4
28: Optimize ASU-14 System $400 $0 ($1,900) ($1,500) 4.8
Totals* $1,106,000 $108,300 ($10,754,700) ($9,540,400) 9.6
*The analysis is based on each EEM being independent of the others. While it is likely that some
EEMs are interrelated, an isolated analysis is used to demonstrate the economics because the audit
team is not able to predict which EEMs an Owner may choose to implement. If several EEMs are
implemented, the resulting energy savings is likely to differ from the sum of each EEM projection.
Summary
The energy audit revealed numerous opportunities for improving the energy performance of the
building. It is recommended that the behavioral and high priority EEMs be implemented now to
generate energy savings from which to fund the medium priority EEMs.
Another avenue to consider is to borrow money from AHFCs revolving loan fund for public
buildings. AHFC will loan money for energy improvements under terms that allow for paying back
the money from the energy savings. More information on this option can be found online at
http://www.ahfc.us/loans/akeerlf_loan.cfm.
Bartlett Regional Hospital 5 Energy Audit (March 2012)
Section 2
Introduction
This report presents the findings of an energy audit of the Bartlett Regional Hospital located in
Juneau, Alaska. The purpose of this investment grade energy audit is to evaluate the infrastructure
and its subsequent energy performance to identify applicable energy efficiency measures (EEMs).
The energy audit report contains the following sections:
Introduction: Building use and energy consumption.
Energy Efficiency Measures: Priority ranking of the EEMs with a description, energy analysis,
and life cycle cost analysis.
Description of Systems: Background description of the building energy systems.
Methodology: Basis for how construction and maintenance cost estimates are derived and the
economic and energy factors used for the analysis.
BUILDING USE
Bartlett Regional Hospital is a 138,909 square foot building that contains commons, offices, clinic,
laboratory, surgery, recovery, kitchen and dining, laundry, storage, and mechanical support spaces.
The hospital has 549 employees that operate the facility in the following manner:
First Floor
Kitchen and Cafeteria 5:30 am – 8:00 pm (7 days/week)
Laundry 7:00 am – 4:30 pm (M – F)
Material Management 7:00 am – 4:30 pm (M – F)
Security 24 hours/day 7 days/week
Emergency & Radiology 24 hours/day 7 days/week
Second Floor
OB & CCU 24 hours/day 7 days/week
Surgery & Short Stay 6:00 am – 8:00 pm (M –F, accessible 24/7)
Physical Therapy 8:00 am – 6:00 pm (M – F)
Admission 6:00 am – 6:00 pm (M – F)
Lobby 24 hours/day 7 days/week
Third Floor
Entire Floor 24 hours/day 7 days/week
Bartlett Regional Hospital 6 Energy Audit (March 2012)
Building History - Major construction and renovations
1968 – Original Construction
1987 – Addition and Remodel
1999 - Surgery Remodel
2004 – Control Upgrades
2005 – Pharmacy Addition
2010 – Medical/Surgical East Wing Renovation
Energy Consumption
The building energy sources include an electric service and a fuel oil tank. Fuel oil is used for the
majority of the heating loads and domestic hot water while electricity serves all other loads. The
following table shows annual energy use and cost.
Annual Energy Consumption and Cost
Source Consumption Cost Energy, MMBtu
Electricity 4,318,875 kWh $375,600 14,700 36%
Fuel Oil 195,988 Gallons $744,800 26,600 64%
Totals $1,120,400 41,300 100%
Electricity
This chart shows
electrical energy use from
2007 to 2010. The
effective cost—energy
costs plus demand
charges—is 8.7¢ per
kWh.
Bartlett Regional Hospital 7 Energy Audit (March 2012)
Fuel Oil
This chart shows heating
energy use from 2007 to
2010. The drop in oil
consumption in 2009
could not be explained. A
year with a higher
number of degree days
reflects colder outside
temperatures and a higher
heating requirement.
Cost of Heat Comparison
This chart shows a comparison of the
current cost of fuel oil heat and electric
heat. The comparison is based on a fuel oil
conversion efficiency of 70% and an
electric boiler conversion efficiency of
95%. Electric heat is currently less
expensive than fuel oil heat.
Bartlett Regional Hospital 8 Energy Audit (March 2012)
Section 3
Energy Efficiency Measures
The following energy efficiency measures (EEMs) were identified during the energy audit. The
EEMs are priority ranked and, where applicable, subjected to energy and life cycle cost analysis.
Appendix A contains the energy and life cycle cost analysis spreadsheets.
The EEMs are grouped into the following prioritized categories:
Behavioral or Operational: EEMs that require minimal capital investment but require
operational or behavioral changes. The EEMs provide a life cycle savings but an analysis is not
performed because the guaranteed energy savings is difficult quantify.
High Priority: EEMs that require a small capital investment and offer a life cycle savings. Also
included in this category are higher cost EEMs that offer significant life cycle savings.
Low Priority: EEMs that will save energy but do not provide a life cycle savings.
BEHAVIORAL OR OPERATIONAL
The following EEMs are recommended for implementation. They require behavioral or operational
changes that can occur with minimal investment to achieve immediate savings. These EEMs are not
easily quantified by analysis because they cannot be accurately predicted. They are recommended
because they offer a life cycle savings, represent good practice, and are accepted features of high
performance buildings. The EEMs also include operational deficiencies that will protect the systems
but not likely to produce significant energy savings.
EEM-1: Weather-strip Doors
Purpose: Many of the exterior doors do not seal and are missing weather stripping. Energy will be
saved if doors are properly weather-stripped to reduce infiltration.
Scope: Replace weather stripping on exterior doors.
EEM-2: Close Fume Hood Sashes
Purpose: During the audit two fume hoods in the lab spaces were partially open when not in active
use. This results in unnecessary loss of conditioned air through the fume hood exhaust
system. Energy will be saved if the fume hood sashes are kept fully closed when not in use
and the fans shut off when not needed.
Scope: Ensure fume hood sashes are fully closed when not in use and fume hood fans are off when
not in use.
Bartlett Regional Hospital 9 Energy Audit (March 2012)
EEM-3: Optimize ASU-2 System
Purpose: ASU-2 is a single zone unit serving only the kitchen area. Supply air temperature appears
to be fixed at 55°F, or operating on a low limit setting. There is a thermostat in the kitchen,
which should control ASU-2 supply air temperature. There are no reheat coils or perimeter
heat.
The unit supplies 100% outside air and has a preheat coil and face and bypass dampers. The
dampers were positioned for full flow through the heating coil and the heating valve was
modulating at an outside air temperature of 30°F. We recommend that a “changeover”
control be used when temperatures are below 40°F where the heating valve is fully open
and the dampers modulate to maintain the supply air temperature setpoint.
Scope: Review FBP damper controls and re-initiate valve-damper changeover control if desired.
This EEM substantially reduces the potential for freezing the coil, but resolving it should
not significantly affect energy consumption.
EEM-4: Optimize ASU-3 System
Purpose: ASU-3 is a single zone unit providing ventilation air for the laundry and other utility areas
in the north basement. Unit is 100% outside air with preheat coil and face and bypass
dampers. Dampers were positioned for full face and heating valve was under control during
site visit, at outside air temperature of about 30°F. Face and bypass dampers have a
pneumatic damper actuator, which technicians indicate is under control by pneumatic
systems. The DDC system does not show any changeover controls. Usually, a
“changeover” control is incorporated to open valve 100% and modulate dampers when
outside air temperature is below about 40°F to prevent freezing coil. This is a
maintenance/safety issue, and not an energy concern.
Scope: Review FBP damper controls and re-initiate valve-damper changeover control if desired.
This EEM substantially reduces the potential for freezing the coil, but resolving it should
not significantly affect energy consumption.
Bartlett Regional Hospital 10 Energy Audit (March 2012)
EEM-5: Optimize ASU-11 System
Purpose: The control drawings call for the mixed air dampers, the heating valve, and the cooling
valve to be controlled in sequence to provide the desired supply air temperature. A
humidistat in each operating room should control the humidifier in the associated zone
duct. A high humidity level in a zone should override mixed air dampers to maintain 48°F
to dehumidify the supply air. The controls for this unit appear to be essentially non-
functional, and/or not per the sequence of operation.
The mixed air dampers were operating at minimum outside air (full heat mode), and
providing 62°F mixed air temperature (MAT). The cooling valve was 100% open and using
chilled water from the WCU-1/2 system. The target supply air temperature was 50°F and
the actual was 58°F. The operating room temperature was 83°F, and the set-point was 54°F.
The inability of the chilled water system to provide sufficient cooling under these
conditions illustrates the low capacity caused by a high chilled water temperature and/or
low water flow as noted for the WCU-1/2 system. The system will be more effective, and
energy may be saved, by using outside air to maintain the desired supply air temperature.
There is a steam-injection type humidifier installed in each of three zones served by ASU-
11. None of the humidifiers had an active steam supply during the site visit. There is only
one humidifier indicated on the DDC system, but there did not appear to be a humidifier in
the air handling unit. The controls were calling for 100% humidification at “ASU-11”. It
appears that ASU-11 is in minimum outside air mode to allow the system to maintain a
higher relative humidity in the operating rooms without active humidification systems. The
system would be more effective, and energy may be saved, by maintaining supply air
temperature with outside air and using the humidifiers to maintain desired relative
humidity.
Scope: Re-activate humidifiers, economizer controls, and specified control sequences. Hospital
staff indicates that they are in process of re-activating the systems. This EEM is
recommended, but costs and energy savings were not calculated because the changes will
be made before this report is finalized.
EEM-6: Disable Chilled Water Systems WCU-1/2
Purpose: Chiller WCU-2 was operating continuously during the site visit. The air handling units
(ASU) served by this chilled water system have outside air economizers. The outside air
temperatures were 20-30°F during the site visit and the ASU’s should not require chilled
water when outside air temperature is below about 50°F. The chilled water system was
operating due to a call for cooling from several air handling units due to overlapping
operation at valves and dampers, and/or leaking valves and dampers.
Scope: Chilled water systems can be operated normally after systems served are fixed. Savings for
this EEM are shown for specific ASU system changes required to reduce cooling loads.
Bartlett Regional Hospital 11 Energy Audit (March 2012)
HIGH PRIORITY
The following EEMs are recommended for implementation because they are low cost measures that
have a high savings to investment ratio. The EEMs are listed from highest to lowest priority. Negative
values, in parenthesis, represent savings.
EEM-7: Turn Off Standby Boiler
Purpose: Both boilers are kept hot continuously. Consideration should be given to isolating the
standby boiler when the weather is warm enough that a failure of the lead boiler will not be
detrimental to hospital operations while the standby boiler is brought on-line. Keeping the
standby boiler hot can result in a 1% efficiency loss due to the isolated boiler acting as a
heat sink. Energy will be saved if only a single boiler is on line when temperatures permit.
Scope: Shut down and isolate the lag boiler when only a single boiler is needed to support building
operations.
Annual Costs Life Cycle Costs
Operating Energy Total Investment Operating Energy Total SIR
$2,000 ($32,220) ($30,220) $1,000 $34,100 ($913,300) ($878,200) 879.2
EEM-8: Reduce Fan Operating Hours
Purpose: Most exhaust fans in the building appear to operate continuously. Energy is consumed by
the fan motors and by heating makeup air to replace exhaust air. Energy will be saved by
turning fans off when not in use.
Scope: Provide occupied/unoccupied schedules for ASU-12, RF-12, EF-12 and HVAC-1 to
operate from 7 am through 7 pm.
Annual Costs Life Cycle Costs
Operating Energy Total Investment Operating Energy Total SIR
$1,000 ($16,430) ($15,430) $800 $17,000 ($443,700) ($425,900) 533.4
Bartlett Regional Hospital 12 Energy Audit (March 2012)
EEM-9: Optimize ASU-18 System
Purpose: The DDC graphics and 2007 Test and Balance Report indicate that the relief damper should
lag the return and outside air dampers by about 28% damper position. The current lag set-
point is 0%, this causes the relief, outside air, and return air dampers to be controlled for
the same position. This strategy likely relieves more air than desired, causing negative
building pressure and more outside air to be brought into the building than needed. Energy
can be saved by re-initiating relief damper lag control.
The minimum mixed air temperature set-point on DDC is 55°F, but the current mixed air
temperature is 50°F. The mixed air dampers are at 65% and the heating coil is at 60% (40%
open). Mixed air dampers should be at a minimum position of 28% percent before heating
coil should operate. Energy will be saved by coordinating controls for the mixed air
dampers and the heating coil valve to ensure dampers are at their minimum position before
the heating coil operates.
Scope: Modify the exhaust air damper controls to provide a 28% lag with the outside air damper.
Modify the controls to provide sequential control of mixing dampers and the heating coil to
maintain supply air temperature setpoint.
Annual Costs Life Cycle Costs
Operating Energy Total Investment Operating Energy Total SIR
$0 ($63,340) ($63,340) $3,500 $0 ($1,795,400) ($1,791,900) 513.0
EEM-10: Perform a Boiler Combustion Test
Purpose: Operating the boiler with an optimum amount of excess air will improve combustion
efficiency. Annual cleaning followed by a combustion test is recommended.
Scope: Annually clean and perform a combustion test on the boiler.
Annual Costs Life Cycle Costs
Operating Energy Total Investment Operating Energy Total SIR
$960 ($7,890) ($6,930) $700 $16,300 ($223,800) ($206,800) 296.4
EEM-11: Install Pipe Insulation
Purpose: Several sections of heating piping are uninsulated. Energy will be saved if these sections of
piping are optimally insulated.
Scope: Install pipe insulation in the following locations:
- 3’ of 1 ½” pipe in Penthouse Z-2
- 2’ of 2” pipe in Penthouse Z-2
- 25’ of 3/4” pipe in Penthouse Z-3
- 10’ of 2” pipe in Penthouse Z-3
Annual Costs Life Cycle Costs
Operating Energy Total Investment Operating Energy Total SIR
$0 ($1,340) ($1,340) $500 $0 ($38,000) ($37,500) 76.0
Bartlett Regional Hospital 13 Energy Audit (March 2012)
EEM-12: Optimize ASU-12 Serving Chemotherapy / Infusion 2nd Floor North 1987 Building
Purpose: The mixing dampers, heating valve, and cooling valve were observed to be fluctuating
between heating and cooling over a period of a couple minutes during review. The
consecutive heating and cooling energy is cancelling each other out. Energy will be saved
by stabilizing the temperature control for this unit.
Control drawings call for the economizer to be used until the outside air temperature
exceeds 60°F, and then to change back to minimum outside air. Energy will be saved by
using outside air until it is warmer than the return air (about 70°F).
Scope: Correct control sequences to provide sequential control of the mixing dampers, heating
coil, and cooling coil. Increase economizer operation until the outside temperature exceeds
the return air temperature.
Annual Costs Life Cycle Costs
Operating Energy Total Investment Operating Energy Total SIR
$0 ($11,720) ($11,720) $8,000 $0 ($319,900) ($311,900) 40.0
EEM-13: Optimize HVAC-1 Serving Solarium
Purpose: The DDC controls are not operating properly. Energy will be saved if the following
controls are corrected:
- The system is cooling the mixed air to 50°F and then adding heat to supply 70°F. This
is inherently inefficient.
- The mixing dampers and the heating valve are operating erratically.
- The relief duct does not have a backdraft damper to prevent cold air from infiltrating
into the building.
Scope: Modify the controls in the following manner:
- Program the controls to reset the supply air temperature with the room temperature and
to allow mixed air to track the supply air temperature.
- Check if a relief air back-draft damper is installed, and if not, install one.
- Program an occupancy schedule that turns the system off during night hours.
Annual Costs Life Cycle Costs
Operating Energy Total Investment Operating Energy Total SIR
$0 ($4,270) ($4,270) $3,200 $0 ($121,100) ($117,900) 37.8
Bartlett Regional Hospital 14 Energy Audit (March 2012)
EEM-14: Optimize ASU-13 System
Purpose: The mixing dampers, heating valve, and cooling valve were observed to be fluctuating
between heating and cooling over a period of a couple minutes during review. The
consecutive heating and cooling energy is cancelling each other out. Energy can be saved
by stabilizing the temperature control for this unit.
Control drawings call for the economizer to be used until the outside air temperature
exceeds 60°F, and then to change back to minimum outside air. Energy will be saved by
using outside air until it is warmer than the return air (about 70°F).
Scope: Re-commission the system to stabilize the mixing dampers, heating valve, and cooling
valve controls. Change the outside air changeover set-point from about 60 to 70°F.
Annual Costs Life Cycle Costs
Operating Energy Total Investment Operating Energy Total SIR
$0 ($11,100) ($11,100) $8,000 $0 ($293,600) ($285,600) 36.7
EEM-15: De-Lamp Vending Machines
Purpose: Lamps for soft drink coolers and snack machines in the main floor hallway run
continuously and are not necessary. Energy will be saved if the lamps are removed.
Scope: Remove lamps from the soft drink cooler and snack machines.
Annual Costs Life Cycle Costs
Operating Energy Total Investment Operating Energy Total SIR
$0 ($160) ($160) $100 $0 ($3,100) ($3,000) 31.0
EEM-16: Install Room 3374 Heat Recovery
Purpose: Heat is being generated by the electrical and communications equipment in Room 3374.
Energy will be saved if this heat is transferred to the adjacent corridor.
Scope: Install a grill and fan to transfer the heat from the transformer into the adjacent corridor.
Increase the setpoint on the exhaust fan so it only operates when the room is too warm.
Annual Costs Life Cycle Costs
Operating Energy Total Investment Operating Energy Total SIR
$0 ($3,350) ($3,350) $3,200 $0 ($95,800) ($92,600) 29.9
Bartlett Regional Hospital 15 Energy Audit (March 2012)
EEM-17: Optimize ASU-4 System
Purpose: ASU-4 is a 100% outside air system that provides makeup air when three or more dryers
are operating. The testing and balancing contractor indicates in their 2009 report that ASU-
4 operates continuously to provide pressurization due to low airflow at ASU-3, which also
supplies air to the laundry area.
ASU-4 provides a constant supply air temperature of 60°F. Occupants indicate the room is
often too warm. The room temperature was 74°F during visit. Energy will be saved by
reducing the supply air temperature when the room air temperature is too high.
EF-3 exhausts air from the dryers and laundry room grilles, and provides a pressure
gradient from the clean side to the dirty side. EF-3 provides nearly constant exhaust air
flow of between 4300-5500 CFM, which is likely required to maintain the room pressure
gradient with the non-optimal exhaust and supply grille locations. This amount of room
exhaust air seems excessive and unnecessary, and requires a large amount of makeup air.
Dryer exhaust duct airflow should be relatively constant to maintain air velocity in the duct
system and reduce lint accumulation. The proposed arrangement will increase the average
airflow in the dryer duct when dryers are operating, but will reduce main exhaust duct
velocities during some operating modes. Current and proposed arrangements are likely not
adequate to prevent lint build-up; addressing this concern is beyond the scope of this
energy study.
Scope: Install a thermostat in the laundry room to reset ASU-4 supply air temperature as required
to maintain room temperature. Extend the dryer exhaust duct from the dryer chase to the
dirty sort area. Cap and abandon exhaust grilles in the wash and dry areas. Reduce the
exhaust airflow from the laundry room from about 4300 to 2000 cfm when no dryers are
operating.
EEM-18: Repair ASU-15 Duct Insulation
Purpose: Duct insulation for roof-mounted AHU-15 is water logged and ineffective. During the audit
we observed that ice had formed on the return duct surface. Energy will be saved if the duct
insulation is improved.
Scope: Repair the insulation on the following AHU-15 supply and return ducts:
- 4’ section of 2’x2’ supply ducting
- 2’ section of 4’x2’ return ducting
Annual Costs Life Cycle Costs
Operating Energy Total Investment Operating Energy Total SIR
$0 ($520) ($520) $1,000 $0 ($14,900) ($13,900) 14.9
Annual Costs Life Cycle Costs
Operating Energy Total Investment Operating Energy Total SIR
$0 ($9,370) ($9,370) $15,100 $0 ($265,600) ($250,500) 17.6
Bartlett Regional Hospital 16 Energy Audit (March 2012)
EEM-19: Optimize Electrical Room 1152 Heat Recovery
Purpose: The emergency generator room is currently heated by a unit heater. The adjacent Electrical
Room 1152 has heat gain from a 225 kVA transformer that is currently exhausted outside
by EF-34. There is no door between the two rooms. Energy will be saved if the heat from
Electric Room 1152 is allowed to naturally convect and heat the generator room.
Scope: Improve natural convection by:
- Turning down the UH-6 setpoint to 50°F so it only operates to protect against freezing.
- Turn up the setpoint on EF-34 so it only operates if the room gets excessively warm.
- Install a small fan (if needed) to promote natural convection between the rooms.
EEM-20: Install Room 3363 Heat Recovery
Purpose: Room 3482 has two 75 kVA and one 9 kVA transformers that are generating heat that is
removed by an exhaust fan. Energy will be saved if this heat is transferred to the adjacent
corridor.
Scope: Install a fan, ductwork and grille to transfer the heat into the adjacent corridor. Increase the
setpoint on the exhaust fan so it only operates when the room is too warm.
Annual Costs Life Cycle Costs
Operating Energy Total Investment Operating Energy Total SIR
$0 ($1,450) ($1,450) $3,600 $0 ($42,000) ($38,400) 11.7
Annual Costs Life Cycle Costs
Operating Energy Total Investment Operating Energy Total SIR
$0 ($860) ($860) $2,000 $0 ($24,500) ($22,500) 12.3
Bartlett Regional Hospital 17 Energy Audit (March 2012)
EEM-21: Optimize ASU-1 Heat Recovery System
Purpose: The controls for the heat recovery coil (HRC), preheat coil (PHC), and cooling coil (CC)
are not coordinated. The system is simultaneously heating and cooling, increasing energy
costs. In addition, the heat recovery system has no method for reducing heat transfer
between the exhaust and supply air, or preventing frost buildup on the exhaust coil.
Defrost controls for the system stop the pump when the water temperature leaving the
outside air coil drops below 35°F. Current controls turn the pump off when the outside air
temperature is above 45°F to prevent overheating. Energy may be saved by installing
controls to modulate the water flow through the outside air coil to maintain the air
temperature leaving the exhaust coil (instead of the water temperature entering the coil)
above 35°F to prevent frost. The proposed arrangement does not show a theoretical energy
savings over current controls to prevent overheating, but will likely save energy in practice
due to sensor inaccuracies.
Energy will be saved by coordinating PHC and CC controls for the unit, and installing a 3-
way valve for the heat recovery system to prevent overheating.
Scope: Install a 3-way valve and controls to modulate the heat recovery system capacity and
prevent frost buildup on the exhaust coil. Modify HRC, PHC, and CC control loops to
prevent overlap and simultaneous heating and cooling. Optimize the controls for the
system.
Annual Costs Life Cycle Costs
Operating Energy Total Investment Operating Energy Total SIR
$0 ($13,370) ($13,370) $30,200 $0 ($331,600) ($301,400) 11.0
EEM-22: Optimize ASU-17 System
Purpose: Control drawings indicate that the heating coil valve opens to 100% heat when the unit is in
unoccupied mode. In addition, heating pumps P-17A/B circulate water to the heating coil,
but are arranged to bypass the coil when heating is not required. Energy will be saved by
controlling the heating valve to maintain a supply air temperature of 55-60°F during
unoccupied mode. To reduce the potential for freezing, pumps P-17A/B should be piped to
provide continuous water flow through the coil.
Scope: Modify control sequence to maintain 55-60°F supply air temperature during unoccupied
mode. Rearrange piping at heating pumps P-17A/B to provide constant flow through the
coil under all conditions. Repair the heating and cooling valves so they do not leak.
Annual Costs Life Cycle Costs
Operating Energy Total Investment Operating Energy Total SIR
$0 ($2,910) ($2,910) $8,400 $0 ($78,300) ($69,900) 9.3
Bartlett Regional Hospital 18 Energy Audit (March 2012)
EEM-23: Install Room 3482 Heat Recovery
Purpose: Room 3482 has a 75 kVA transformer that is generating heat that is removed by an exhaust
fan. Energy will be saved if this heat is transferred to the adjacent corridor.
Scope: Install a fan, ductwork and grille to transfer the heat into the adjacent corridor. Increase the
setpoint on the exhaust fan so it only operates when the room is too warm.
Annual Costs Life Cycle Costs
Operating Energy Total Investment Operating Energy Total SIR
$0 ($1,020) ($1,020) $3,200 $0 ($29,400) ($26,200) 9.2
EEM-24: Optimize ASU-15 System
Purpose: ASU-15 is a 100% outside air unit with supply, exhaust, heat pipe heat recovery, and
variable flow. Static pressure set-points for supply and exhaust fan VFDs are both set very
high, which staff indicates is due to inadequate airflow. The supply air temperature target is
50°F, which is very low, due to difficulties cooling the lab areas (which are directly over
the boiler and mechanical rooms). The hot rooms and piping below the floor overheats the
laboratory areas. Energy will be saved by insulating the lab floor, and increasing the supply
air temperature when practical. This will also allow the ASU-15 heat recovery system to
operate more effectively.
The heat pipe heat recovery coil (HRC) tilt mechanism does not appear to be working
properly—it appears to be overheating the supply air. The hospital’s local engineer
indicates that the tilt mechanism designed for modulating capacity of the heat recovery
system is currently controlled for two-position operation, with a manual summer-winter
switch. Hospital staff indicates that the HRC was field-installed, and has never functioned
well. The manufacturer of the system (Haakon) agrees that the tilt mechanism was a design
that did not modulate very well. Haakon now recommends that face and bypass dampers be
used to modulate the heat recovery system capacity. Energy can be saved by modulating
the heat recovery system to prevent overheating. A side benefit is that this arrangement will
allow controls to be installed that prevent frost build-up on the exhaust side of the heat
recovery coil.
The humidity sensor in the main lab is reading 108%, and set-point is -0.2%. This sensor is
used to control the humidifier in ASU-15. Energy will be saved by properly controlling the
humidification system.
Scope: Install spray-on insulation in the boiler room ceiling at the underside of the lab floor. Reset
ASU-15 supply air temperature based on the room requiring the most cooling. Install face
and bypass dampers to modulate the HRC capacity, and coordinate the operation with the
heating and cooling valves through the DDC system. Repair, calibrate, or replace the
humidity sensor.
Annual Costs Life Cycle Costs
Operating Energy Total Investment Operating Energy Total SIR
$0 ($17,410) ($17,410) $62,900 $0 ($491,600) ($428,700) 7.8
Bartlett Regional Hospital 19 Energy Audit (March 2012)
EEM-25: Optimize Snowmelt System Serving Helicopter Landing Pad
Purpose: Hospital staff indicates that the snowmelt system appears to operate continuously. The
system is not controlled by the DDC controls. Energy will be saved by automatically
shutting off the heat to the helipad when conditions allow.
Scope: Install temperature and moisture sensors to activate snowmelt systems when snow or
freezing conditions are present.
Analysis: The helipad temperature was measured to be about 54°F when the outside air temperature
was about 28°F. The system was analyzed assuming that the helipad temperature is
currently maintained at 54°F at all times, and shuts off above 54°F outside air temperature.
The proposed arrangement assumes that the snowmelt system will be shut off above 40°F.
These are conservative assumptions; savings with the temperature and moisture sensors
will likely be greater.
Annual Costs Life Cycle Costs
Operating Energy Total Investment Operating Energy Total SIR
$0 ($3,640) ($3,640) $14,200 $0 ($103,000) ($88,800) 7.3
EEM-26: Optimize Chilled Water System WCU-1 and 2
Purpose: During the site visit, both chiller circulating pumps CWP-1 and 2 were operating, but coil
loop circulating pump CWP-3 was not. Chiller WCU-1 was in alarm and not operating.
Chiller WCU-2 was observed to be operating continuously. Control drawings call for the
cooling coil loop pump CWP-3 to operate continuously, and chiller pumps CWP-1/2 to
operate when the respective chiller operates.
The effect of current pump operation is that water through the OFF chiller mixes with water
from the ON chiller to provide a high chilled water supply temperature. In addition, it is
unlikely that CWP-1/2 can provide adequate flow under any conditions without CWP-3.
AHU-11 was observed to be in 100% cooling, but was not maintaining the desired supply
air temperature with a 62°F mixed air temperature, indicating the system was providing
inadequate cooling capacity even at very light load conditions. Energy will be saved by
operating pumps only when needed.
Scope: Operate CWP-1 and CWP-2 only when the respective chiller operates, and operate CWP-3
whenever cooling is required.
Annual Costs Life Cycle Costs
Operating Energy Total Investment Operating Energy Total SIR
$0 ($560) ($560) $1,800 $0 ($10,900) ($9,100) 6.1
Bartlett Regional Hospital 20 Energy Audit (March 2012)
EEM-27: Install Heat Recovery Systems
Purpose: Numerous areas in the building contain mechanical and electrical equipment that generates
a large amount of heat. Many of those areas are cooled by exhaust fans that increase
building outside air requirements, or other methods that require energy to cool the rooms.
In most cases, the heating energy is then wasted. Energy will be saved by reducing
exhaust/outside air, reducing the energy used to cool the rooms, and/or recovering the
heating energy to be used where needed.
Scope: Install water-cooled heat pumps in rooms generating excess heat including the boiler room,
mechanical rooms, and main electrical rooms on the first floor. Install a heat pump water
circulating system to move warm water at about 110°F from the hot rooms to systems and
areas needing the heat. Install heating coils that can use the low temperature water at ASU-
2, 3, and 4, or replace entire units with those suitable for the new arrangement. Connect the
heat pump water loop to the ASU-1/EF-1 heat recovery system. This arrangement will
allow heat to be used for outside air at ASU-1, or rejected at EF-1 if needed.
Annual Costs Life Cycle Costs
Operating Energy Total Investment Operating Energy Total SIR
$2,400 ($172,260) ($169,860) $934,200 $40,900 ($5,113,300) ($4,138,200) 5.4
EEM-28: Optimize ASU-14 System
Purpose: Control drawings call for the economizer to be used until the outside air temperature
exceeds 60°F, and then to change back to minimum outside air. Energy will be saved by
using outside air until it is warmer than the return air (about 70°F).
Scope: Change the economizer changeover setpoint from about 60°F to 70°F.
Annual Costs Life Cycle Costs
Operating Energy Total Investment Operating Energy Total SIR
$0 ($100) ($100) $400 $0 ($1,900) ($1,500) 4.8
Bartlett Regional Hospital 21 Energy Audit (March 2012)
LOW PRIORITY
Low priority EEMs do not offer a life cycle energy savings and are not recommended. Negative
values, in parenthesis, represent savings.
EEM-29: Replace Transformers
Purpose: Existing transformers are not TP-1 rated. Energy will be saved if these less-efficient
transformers are replaced with energy efficient models that comply with NEMA Standard
TP 1-2001.
Scope: Replace the following less-efficient transformers with NEMA Standard TP 1-2001
compliant models. Quantities of each transformer are shown in parenthesis.
- (1) 500 kVA
- (2) 225 kVA
- (1) 150 kVA
- (3) 112.5 kVA
- (8) 75 kVA
- (5) 30 kVA
- (4) 15 kVA
- (1) 9 kVA
Annual Costs Life Cycle Costs
Operating Energy Total Investment Operating Energy Total SIR
$0 ($18,240) ($18,240) $420,100 $0 ($358,500) $61,600 0.9
EEM-30: Upgrade Exterior Lighting to LED
Purpose: The existing perimeter and parking lot lighting consists of metal halide and high pressure
sodium fixtures. These fixture styles are less efficient than LED lighting and the lamp life
is much shorter.
Scope: Replace the following existing exterior lights with LED lights. Quantities of each light are
shown in parenthesis.
- Wall packs (17) @ 150-watt MH
- 16’ Lamp Posts (9) @ 175-watt MH
- 30’ Lamp Posts (8) @ 250-watt HPS
Annual Costs Life Cycle Costs
Operating Energy Total Investment Operating Energy Total SIR
$120 ($1,180) ($1,060) $41,000 ($900) ($23,200) $16,900 0.6
Bartlett Regional Hospital 22 Energy Audit (March 2012)
Section 4
Description of Systems
ENERGY SYSTEMS
This section provides a general description of the building systems. Energy conservation
opportunities are addressed in Section 3, Energy Efficiency Measures.
Building Envelope
R-value
Component Description (inside to outside) Existing Optimal
Exterior Walls
1968 Construction 5/8” gyp bd, 3 ½” batt, 2 ½” metal studs w/ 1” foam thermal break R-15 R-26
1987 Construction 5/8” gyp bd, 6” batt, 6” metal studs, ½” ply, 2” foam w/ Dryvit R-20 R-26
2005 Construction 5/8” gyp bd, 1” foil faced foam, R-19 batt, 6” metal studs, R-15 R-26
½” gyp bd, metal siding
Roof
North Plaza 12” concrete, waterproof membrane, 4” rigid foam, Drainage R-20 R-46
Layer, 8” – 18” topsoil
Main Roof 8” average EPDM system R-36 R-46
Floors
Floor Slab 4” Concrete slab-on-grade R-10 R-10
Foundation
1968 Construction 8” concrete w/ 1” perimeter insulation board R-5 R-20
1987 Construction 8” concrete w/ 4” perimeter insulation board R-17 R-20
Windows Aluminum frame double pane windows R-1.5 R-5
Doors Steel and Aluminum doors w/ non-thermally broken frames R-1.5 R-5
Bartlett Regional Hospital 23 Energy Audit (March 2012)
Heating System
The building is heated by two fuel oil steam boilers that provide heat to twelve air handling unit
systems, fan coil units, and perimeter hydronic systems. The heating system has the following pumps:
HWP-1 thru 6 are hydronic heating pumps.
HWP 17A and 17B are hydronic heating pumps for AHU 17.
HWCP-1 & 2 are domestic hot water circulation pumps.
HRP-8 is a glycol return pump in Penthouse Z-1.
FTP-1 & 2 are fuel oil transfer pumps.
CWP-2 & 3 is a primary chilled water pumps.
CWP-4 is the MRI chilled water pump.
CWP-5 & 6 are chilled water pumps for AHU 13 & 14.
SMP-1 is a snow melt circulation pump.
Two new and yet un-named condensate return pumps in Room 1130.
Bartlett Regional Hospital 24 Energy Audit (March 2012)
Ventilation Systems
Area
Fan
System Description
1968 Bldg ASU-1 20,685 cfm 25 hp constant volume multi-zone air handling
unit consisting of an outside air damper, heating coil,
cooling coil, filter section, supply fan, and return fan
1968 Building Exhaust EF-1 24,595 15 hp constant volume exhaust air fan
1971 Ground Floor SF-3 3,100 cfm 5 hp variable volume air handling unit consisting
of a heating coil, mixing box, filter section, and supply fan
1987 Remodel ASU-11 15 hp constant volume air handling unit consisting of a
heating coil, cooling coil, mixing box, filter section, supply
fan and return fan
1987 Remodel RF-11 5 hp constant volume return fan for ASU-11
3rd Floor Isolation Room EF-34 (2) “Smoking Room Fan” on drawings - perhaps not installed*
Admin Area EF-12 1,625 cfm ¾ hp constant volume exhaust air fan
Boiler Room 1153 SF-32 5,000 cfm 2 hp constant volume air handling unit
consisting of a, filter section and a supply fan
Dark Room 1310/1325 EF-25 380 cfm ¼ hp constant volume exhaust fan
Dishwasher EF-18 430 cfm constant volume exhaust air fan
ED Decon 1431 EF-30 890 cfm 1/3 hp constant volume exhaust air fan
Electric Room 1127 EF-35 2,600 cfm 2 hp constant volume exhaust air fan
Elevator Room 4182 EF-36 1,750 cfm ½ hp constant volume exhaust air fan
Emergency ASU-14 2,795 cfm 5 hp constant volume air handling unit
consisting of a heating coil, cooling coil, mixing box, filter
section, supply fan and return fan
Emergency EF-14 850 cfm ½ hp constant volume exhaust air fan
Emergency RF-14 1,720 cfm 2 hp constant volume return fan for ASU-14
Emergency Distribution
1151
EF-34 2,100 cfm 1 ½ hp constant volume exhaust air fan
Isolation Room 2830 EF-22 590 cfm ¾ hp variable volume exhaust air fan
Isolation Suites EF-28 2,000 cfm 1 ½ hp constant volume exhaust air fan
Kitchen ASU-2 8,940 cfm 5 hp constant volume air handling unit
consisting of a heating coil, mixing box, filter section, and
supply fan
Kitchen EF-2 8,052 5 hp constant volume exhaust air fan
Bartlett Regional Hospital 25 Energy Audit (March 2012)
Ventilation Systems, continued
Area
Fan
System Description
Lab Air ASU-15 15,500 cfm 20 hp constant volume air handling system
consisting of a heating coil, cooling coil, mixing box, heat
recovery unit, filter section, supply fan, and return fan
Lab Air RF-15 12,400 cfm 15 hp constant volume return fan for ASU-15
Laundry SF-4 1,935 cfm 3 hp variable volume air handling unit consisting
of a heating coil, filter section, and supply fan
Laundry Dryers EF-3 7.5 hp variable volume exhaust air fan
Level 1 2004-7 Addition ASU-18 23,100 cfm 40 hp variable volume air handling unit
consisting of a heating coil, cooling coil, mixing box, filter
section, supply fan, and return fan
Level 1 2004-7 Addition EF-21 4,300 cfm 2 hp constant volume exhaust air fan
Level 1 2004-7 Addition RF-18 16,900 cfm 20 hp variable volume return fan for ASU-18
Level 2 & 3 2004-7
Addition
ASU-19 25,500 cfm 30 hp variable volume air handling unit
consisting of a heating coil, cooling coil, mixing box, filter
section, supply fan and return fan
Level 2 & 3 2004-7
Addition
EF-23 7,040 cfm 5.0 hp constant volume exhaust air fan
Level 2 & 3 2004-7
Addition
RF-19 12,500 cfm 5 hp variable volume return fan for ASU-19
Level 2 Partial Admin ASU-12 6,800 cfm 10 hp constant volume air handling unit
consisting of a heating coil, cooling coil, mixing box, filter
section, supply fan and return fan
Level 2 Partial Admin RF-12 5,900 cfm 5 hp constant volume return fan for ASU-12
Level 2 Radiology ASU-13 6,155 cfm 10 hp constant volume air handling unit
consisting of a heating coil, cooling coil, mixing box, filter
section, supply fan and return fan
Level 2 Radiology RF-13 1,865 cfm 2 hp constant volume return fan for ASU-13
Mechanical Rooms 1128
& 1150
SF-33 6,000 cfm 3 hp constant volume air handling unit
consisting of a, filter section and a supply fan
Mechanical Room 4182 EF-37 constant volume exhaust air fan
Mechanical Room 3201 EF-26 4,200 cfm 1 ½ hp constant volume exhaust fan
Pharmacy 3484 & 3480 EF-31 655 cfm ¼ hp constant volume exhaust air fan
Pharmacy 3484 Fume
Hood
EF-29 735 cfm ½ hp constant volume exhaust air fan
Bartlett Regional Hospital 26 Energy Audit (March 2012)
Ventilation Systems, continued
Area
Fan
System Description
Radiology EF-13 4,500 cfm 2 hp constant volume exhaust air fan
Smoking* Room 3112 EF-24 180 cfm 1/6 hp constant volume exhaust fan
Surgery EF-11 200 cfm constant volume exhaust air fan
Surgery East 3rd Floor ASU-17 3,200 cfm constant volume air handling unit consisting of a
heating coil, cooling coil, mixing box, filter section, supply
fan and return fan
Surgery East 3rd Floor RF-17 2,500 cfm 1 hp constant volume return fan for ASU-17
Surgery Wing EF-20 575 cfm ¼ hp constant volume exhaust air fan
*References to “Smoking Room” are taken from the building drawings and are kept to reference back to those drawings.
The Bartlett Regional Hospital Campus is now entirely smoke free.
Domestic Hot Water System
The domestic hot water is produced by steam-to-water heat exchangers supplied by the steam boilers.
Cooling Systems
The building has five major separate mechanical cooling systems. Rooftop coolers WCU-1 and
WCU-2 provide cooling for ASU-1, 11, 12, 13, 14, and 17. Rooftop coolers WCU-3 and WCU-4
provide cooling for ASU-15, 18, 19, and the CT and MRI spaces. A packaged cooling unit provides
cooling for the computer server room.
Automatic Control System
The building has a DDC system to control the operation of the heating and ventilation systems.
Lighting
Although some T-12 lighting remains in the mechanical spaces, interior lighting consists primarily of
T5 and T8 fluorescent fixtures. Exterior lighting consists primarily of metal halide lighting with some
high pressure sodium fixtures. Because lighting operational hours are controlled by staff, operational
costs for lighting with existing infrastructure are kept to a minimum. We recommend that
maintenance staff upgrade the remaining T-12 fixtures to more efficient T-8 units only as the ballasts
fail and need to be replaced.
Electric Equipment
Commercial equipment for food preparation is located in the kitchen and surrounding spaces. The
hospital also has medical equipment throughout the facility.
Bartlett Regional Hospital 27 Energy Audit (March 2012)
Section 5
Methodology
Information for the energy audit was gathered through on-site observations, review of construction
documents, and interviews with operation and maintenance personnel. The EEMs are evaluated using
energy and life cycle cost analyses and are priority ranked for implementation.
Energy Efficiency Measures
Energy efficiency measures are identified by evaluating the building’s energy systems and comparing
them to systems in modern, high performance buildings. The process for identifying the EEMs
acknowledges the realities of an existing building that was constructed when energy costs were much
lower. Many of the opportunities used in modern high performance buildings—highly insulated
envelopes, variable capacity mechanical systems, heat pumps, daylighting, lighting controls, etc.—
simply cannot be economically incorporated into an existing building.
The EEMs represent practical measures to improve the energy efficiency of the buildings, taking into
account the realities of limited budgets. If a future major renovation project occurs, additional EEMs
common to high performance buildings should be incorporated.
Life Cycle Cost Analysis
The EEMs are evaluated using life cycle cost analysis which determines if an energy efficiency
investment will provide a savings over a 25-year life. The analysis incorporates construction,
replacement, maintenance, repair, and energy costs to determine the total cost over the life of the
EEM. Future maintenance and energy cash flows are discounted to present worth using escalation
factors for general inflation, energy inflation, and the value of money. The methodology is based on
the National Institute of Standards and Technology (NIST) Handbook 135 – Life Cycle Cost
Analysis.
Life cycle cost analysis is preferred to simple payback for facilities that have long—often perpetual—
service lives. Simple payback, which compares construction cost and present energy cost, is
reasonable for short time periods of 2-4 years, but yields below optimal results over longer periods
because it does not properly account for the time value of money or inflationary effects on operating
budgets. Accounting for energy inflation and the time value of money properly sums the true cost of
facility ownership and seeks to minimize the life cycle cost.
Construction Costs
The cost estimates are derived based on a preliminary understanding of the scope of each EEM as
gathered during the walk-through audit. The construction costs for in-house labor are $60 per hour for
work typically performed by maintenance staff and $110 per hour for contract labor.
The cost estimate assumes the work will be performed as part of a larger renovation or energy
efficiency upgrade project. When implementing EEMs, the cost estimate should be revisited once the
scope and preferred method of performing the work has been determined. It is possible some EEMs
will not provide a life cycle savings when the scope is finalized.
Bartlett Regional Hospital 28 Energy Audit (March 2012)
Maintenance Costs
Maintenance costs are based on in-house or contract labor using historical maintenance efforts and
industry standards. Maintenance costs over the 25-year life of each EEM are included in the life cycle
cost calculation spreadsheets and represent the level of effort to maintain the systems.
Energy Analysis
The energy performance of an EEM is evaluated within the operating parameters of the building. A
comprehensive energy audit would rely on a computer model of the building to integrate building
energy systems and evaluate the energy savings of each EEM. This investment grade audit does not
utilize a computer model, so energy savings are calculated with factors that account for the dynamic
operation of the building. Energy savings and costs are estimated for the 25-year life of the EEM
using appropriate factors for energy inflation.
Prioritization
Each EEM is prioritized based on the life cycle savings to investment ratio (SIR) using the following
formula:
Prioritization Factor = Life Cycle Savings / Capital Costs
This approach factor puts significant weight on the capital cost of an EEM, making lower cost EEMs
more favorable.
Economic Factors
The following economic factors are significant to the findings.
Nominal Interest Rate: This is the nominal rate of return on an investment without regard to inflation.
The analysis uses a rate of 5%.
Inflation Rate: This is the average inflationary change in prices over time. The analysis uses an
inflation rate of 2%.
Economic Period: The analysis is based on a 25-year economic period with construction beginning in
2013.
Fuel Oil
Fuel oil currently costs $3.80 per gallon for a seasonally adjusted blend of #1 and #2 fuel oil. The
analysis is based on 6% fuel oil inflation which has been the average for the past 20-years.
Electricity
Electricity is supplied by Alaska Electric Light & Power Company (AEL&P). The building is billed
for electricity under AEL&P’s Rate 24. This rate charges for both electrical consumption (kWh) and
peak electric demand (kW). Electrical consumption is the amount of energy consumed and electric
demand is the rate of consumption. AEL&P determines the electric demand by averaging demand
over a continuously sliding fifteen minute window. The highest fifteen minute average during the
billing period determines the peak demand. The following table lists the electric charges, which
includes a 24% rate hike that was recently approved:
Bartlett Regional Hospital 29 Energy Audit (March 2012)
AEL&P Small Government Rate with Demand
Charge 1 On-peak (Nov-May) Off-peak (June-Oct)
Energy Charge per kWh 6.11¢ 5.92¢
Demand Charge per kW $14.30 $9.11
Service Charge per month $99.24 $99.24
Over recent history, electricity inflation has been less than 1% per year, which has lagged general
inflation. An exception is the recent 24% rate hike that was primarily due to construction of additional
hydroelectric generation at Lake Dorothy. This project affords the community a surplus of power
which should bring electric inflation back to the historic rate of 1% per year. Load growth from
electric heat conversions is likely to increase generating and distribution costs, especially if diesel
supplementation is needed. Combining these two factors contribute to an assumed electricity inflation
rate of 3%.
Summary
The following table summarizes the energy and economic factors used in the analysis.
Summary of Economic and Energy Factors
Factor Rate or Cost Factor Rate or Cost
Nominal Discount Rate 5% Electricity $0.086/kWh
General Inflation Rate 2% Electricity Inflation 3%
Fuel Oil Cost (2012) $3.80/gal Fuel Oil Inflation 6%
Bartlett Regional Hospital 30 Energy Audit (March 2012)
Appendix A
Energy and Life Cycle Cost Analysis
Bartlett Regional Hospital 31 Energy Audit (March 2012)
Alaska Energy Engineering LLC Energy and Life Cycle Cost Analysis
25200 Amalga Harbor Road Tel/Fax: 907.789.1226
Juneau, Alaska 99801 jim@alaskaenergy.us
Bartlett Regional Hospital
Basis
Economic
Study Period (years) 25 Nominal Discount Rate 5%General Inflation 2%
Energy
2011 $/gal Fuel Inflation 2012 $/gal
Fuel Oil $3.80 6% $4.03
Electricity $/kWh (2011)$/kW (2011)Inflation $/kWh (2012)$/kW (2012)
w/ Demand Charges $0.061 $12.14 3% $0.063 $12.50
w/o Demand Charges $0.086 -3% $0.089 -
EEM-7: Turn Off Standby Boiler
Energy Analysis
Boiler Input MBH Loss %Loss MBH Hours, exist Hours, new kBtu η boiler Gallons
B-1 17,200 0.50% 86 8,760 4,380 -376,680 68%-4,000
B-2 17,200 0.50% 86 8,760 4,380 -376,680 68%-4,000
172 -753,360 -7,999
Life Cycle Cost Analysis Year Qty Unit Base Cost Year 0 Cost
Construction Costs
Stage boiler operation 0 1 ea $1,000 $1,000
Annual Costs
Sequence boilers 1 - 25 1 ls $2,000.00 $34,054
Energy Costs
Fuel Oil 1 - 25 -7,999 gal $4.03 ($913,277)
Net Present Worth ($878,200)
Bartlett Regional Hospital 32 Energy Audit (March 2012)
Alaska Energy Engineering LLC Energy and Life Cycle Cost Analysis
25200 Amalga Harbor Road Tel/Fax: 907.789.1226
Juneau, Alaska 99801 jim@alaskaenergy.us
Bartlett Regional Hospital
EEM-8: Reduce Fan Operating Hours
Energy Analysis
Fan Case CFM ΔP η, fan BHP η, motor kW Hours kWh
AHU-12 Existing -7,700 3.50 55%-8 91%-6 8,760 -55,362
Optimized 7,700 3.50 55%8 91%6 4,380 27,681
RF-12 Existing -5,800 1.50 55%-2 89%-2 8,760 -18,274
Optimized 5,800 1.50 55%2 89%2 4,380 9,137
EF-12 Existing -1,625 0.75 55%0 70%0 8,760 -3,255
Optimized 1,625 0.75 55%0 70%0 4,380 1,627
HVAC-1 Existing -880 1.60 50%0 75%0 8,760 -3,860
Optimized 880 1.60 55%0 75%0 4,380 1,755
0 -40,551
Ventilation SA CFM MAT T,room MBH Hours kBtu η boiler Gallons
AHU-12 Existing -7,700 62 70 -67 8,760 -582,785 68%-6,188
Optimized 7,700 62 70 67 4,380 291,393 68%3,094
HVAC-1 Existing -880 62 70 -8 8,760 -66,604 68%-707
Optimized 880 62 70 8 4,380 33,302 68%354
-324,695 -3,448
Life Cycle Cost Analysis Year Qty Unit Base Cost Year 0 Cost
Construction Costs
Add schedules 0 4 hrs $110 $440
Estimating contingency 0 15%$66
Overhead & profit 0 30%$152
Design fees 0 10%$66
Project management 0 8%$58
Annual Costs
DDC Maintenance 1 - 25 1 LS $1,000.00 $17,027
Energy Costs
Electric Energy 1 - 25 -40,551 kWh $0.063 ($50,084)
Fuel Oil 1 - 25 -3,448 gal $4.03 ($393,618)
Net Present Worth ($425,900)
EEM-9: Optimize ASU-18 System
Energy Analysis
Ventilation SA CFM MAT T,room MBH Hours kBtu η boiler Gallons
Heating Existing -22,100 52.5 65 -298 8,760 -2,613,546 72% -26,209
Optimized 22,100 60 65 119 8,760 1,045,418 72%10,484
-1,568,128 -15,725
Life Cycle Cost Analysis Year Qty Unit Base Cost Year 0 Cost
Construction Costs
Modify relief damper control 0 1 ea $350 $350
Sequence mixing damper and hetaing coil controls 0 1 ea $1,600 $1,600
Estimating contingency 0 15%$293
Overhead & profit 0 30%$673
Design fees 0 10%$292
Project management 0 8%$257
Energy Costs
Fuel Oil 1 - 25 -15,725 gal $4.03 ($1,795,387)
Net Present Worth ($1,791,900)
Bartlett Regional Hospital 33 Energy Audit (March 2012)
Alaska Energy Engineering LLC Energy and Life Cycle Cost Analysis
25200 Amalga Harbor Road Tel/Fax: 907.789.1226
Juneau, Alaska 99801 jim@alaskaenergy.us
Bartlett Regional Hospital
EEM-10: Perform Boiler Combustion Test
Energy Analysis
Annual Gal % Savings Savings, Gal
196,000 -1.0% -1,960
Life Cycle Cost Analysis Year Qty Unit Base Cost Year 0 Cost
Construction Costs
Purchase combustion analyzer 0 1 LS $700 $700
Annual Costs
Clean boiler and perform combustion test 1 - 25 16 hrs $60.00 $16,346
Energy Costs
Fuel Oil 1 - 25 -1,960 gal $4.03 ($223,777)
Net Present Worth ($206,700)
EEM-11: Install Pipe Insulation
Energy Analysis
Service Size Length Bare BTUH Insul BTUH Factor kBtu η boiler Gallons
Heating 0.75 25 74 11 100% -13,797 68%-146
Heating 1.50 3 126 15 100% -2,917 68%-31
Heating 2.00 12 154 15 100% -14,612 68%-155
-333
Life Cycle Cost Analysis Year Qty Unit Base Cost Year 0 Cost
Construction Costs
Pipe Insulation 3/4" 0 25 lnft $5 $125
1-1/2" 0 3 lnft $8 $24
2" 0 12 lnft $9 $108
Estimating contingency 0 15%$39
Overhead & profit 0 30%$89
Design fees 0 10%$38
Project management 0 8%$34
Energy Costs
Fuel Oil 1 - 25 -333 gal $4.03 ($37,975)
Net Present Worth ($37,500)
Bartlett Regional Hospital 34 Energy Audit (March 2012)
Alaska Energy Engineering LLC Energy and Life Cycle Cost Analysis
25200 Amalga Harbor Road Tel/Fax: 907.789.1226
Juneau, Alaska 99801 jim@alaskaenergy.us
Bartlett Regional Hospital
EEM-12: Optimize ASU-12 System
Energy Analysis
Ventilation SA CFM MAT T,room MBH Hours kBtu η boiler Gallons
Heating Existing -7,700 56.5 65 -71 8,760 -619,209 72%-6,209
Optimized 7,700 60.0 65 42 8,760 364,241 72%3,653
-254,969 -2,557
SA CFM MAT T,room MBH Hours kBtu COP kWh
Coeating Existing -7,700 56.5 65 -71 8,760 -619,209 3.3 -54,994
Optimized 7,700 60.0 65 42 8,760 364,241 3.3 32,349
-254,969 -22,645
Life Cycle Cost Analysis Year Qty Unit Base Cost Year 0 Cost
Construction Costs
Optimize controls 0 1 ea $4,500 $4,500
Estimating contingency 0 15%$675
Overhead & profit 0 30%$1,553
Design fees 0 10%$673
Project management 0 8%$592
Energy Costs
Electric Energy 1 - 25 -22,645 kWh $0.063 ($27,968)
Fuel Oil 1 - 25 -2,557 gal $4.03 ($291,920)
Net Present Worth ($311,900)
EEM-13: Optimize HVAC-1 System
Energy Analysis
SA CFM MAT T,room MBH Hours kBtu η boiler Gallons
HVAC-1 Existing -880 50 65 -14 8,760 -124,883 68%-1,326
Optimized 880 62 65 3 8,760 24,977 68%265
-99,906 -1,061
Life Cycle Cost Analysis Year Qty Unit Base Cost Year 0 Cost
Construction Costs
Optimize controls 0 1 ea $1,800 $1,800
Estimating contingency 0 15%$270
Overhead & profit 0 30%$621
Design fees 0 10%$269
Project management 0 8%$237
Energy Costs
Fuel Oil 1 - 25 -1,061 gal $4.03 ($121,113)
Net Present Worth ($117,900)
Bartlett Regional Hospital 35 Energy Audit (March 2012)
Alaska Energy Engineering LLC Energy and Life Cycle Cost Analysis
25200 Amalga Harbor Road Tel/Fax: 907.789.1226
Juneau, Alaska 99801 jim@alaskaenergy.us
Bartlett Regional Hospital
EEM-14: Optimize ASU-13 System
Energy Analysis
Ventilation SA CFM MAT T,room MBH Hours kBtu η boiler Gallons
Heating Existing -6,500 56.5 65 -60 8,760 -522,709 72%-5,242
Optimized 6,500 60.0 65 35 8,760 307,476 72%3,083
-215,233 -2,158
SA CFM MAT T,room MBH Hours kBtu COP kWh
Coeating Existing -6,500 56.5 65 -60 8,760 -522,709 3.3 -46,423
Optimized 6,500 63.5 65 11 8,760 92,243 3.3 8,192
-430,466 -38,231
Life Cycle Cost Analysis Year Qty Unit Base Cost Year 0 Cost
Construction Costs
Optimize controls 0 1 ea $4,500 $4,500
Estimating contingency 0 15%$675
Overhead & profit 0 30%$1,553
Design fees 0 10%$673
Project management 0 8%$592
Energy Costs
Electric Energy 1 - 25 -38,231 kWh $0.063 ($47,219)
Fuel Oil 1 - 25 -2,158 gal $4.03 ($246,426)
Net Present Worth ($285,700)
EEM-15: De-Lamp Vending Machines
Energy Analysis
Electric Savings
Fixture Number Hours Lamp Fixture Watts Lamp Fixture Watts kW kWh
Vending 8 8,760 1T8 36 0 -0.3 -2,523
Life Cycle Cost Analysis Year Qty Unit Base Cost Year 0 Cost
Construction Costs
Remove lamps 0 1 LS $60 $60
Energy Costs
Electric Energy 1 - 25 -2,523 kWh $0.063 ($3,116)
Net Present Worth ($3,100)
Existing Replacement Savings
Bartlett Regional Hospital 36 Energy Audit (March 2012)
Alaska Energy Engineering LLC Energy and Life Cycle Cost Analysis
25200 Amalga Harbor Road Tel/Fax: 907.789.1226
Juneau, Alaska 99801 jim@alaskaenergy.us
Bartlett Regional Hospital
EEM-16: Install Room 3374 Heat Recovery
Energy Analysis
KW kWh kBtu η boiler Factor Gallons
5.4 -47,304 -161,401 68%50%-857
Electricity
Unit BHP kW Hours kWh
Fan Coil 0.25 0.19 8,760 1,634
Life Cycle Cost Analysis Year Qty Unit Base Cost Year 0 Cost
Construction Costs
Fan coil unit 0 1 LS $1,500 $1,500
Electrical 0 1 ea $300 $300
Estimating contingency 0 15%$270
Overhead & profit 0 30% $621.00
Design fees 0 10%$269
Project management 0 8%$237
Energy Costs
Electric Energy 1 - 25 1,634 kWh $0.063 $2,018
Fuel Oil 1 - 25 -857 gal $4.03 ($97,831)
Net Present Worth ($92,600)
EEM-17: Optimize ASU-4 System
Energy Analysis
SA CFM MAT T,room MBH Hours kBtu η boiler Gallons
Existing -1,935 41 60 -40 8,760 -347,826 68%-3,693
Optimized 1,935 41 56 31 8,760 274,600 68%2,916
-73,227 -778
SA CFM MAT T,room MBH Hours kBtu η boiler Gallons
Existing -2,300 41 60 -47 3,090 -145,836 68%-1,548
Life Cycle Cost Analysis Year Qty Unit Base Cost Year 0 Cost
Construction Costs
Optimize controls 0 1 ea $2,500 $2,500
Rearange exhaust ducts and redcue exhaust flows 0 1 ea $6,000 $6,000
Estimating contingency 0 15%$1,275
Overhead & profit 0 30% $2,932.50
Design fees 0 10% $1,270.75
Project management 0 8% $1,118.26
Energy Costs
Fuel Oil 1 - 25 -2,326 gal $4.03 ($265,563)
Net Present Worth ($250,500)
Bartlett Regional Hospital 37 Energy Audit (March 2012)
Alaska Energy Engineering LLC Energy and Life Cycle Cost Analysis
25200 Amalga Harbor Road Tel/Fax: 907.789.1226
Juneau, Alaska 99801 jim@alaskaenergy.us
Bartlett Regional Hospital
EEM-18: Repair ASU-15 Duct Insulation
Energy Analysis
Unit Area ΔT R-value MBH Hours kBtu η boiler Gallons
ASU-15 -56 25 1 -1 8,760 -12,264 68%-130
Life Cycle Cost Analysis Year Qty Unit Base Cost Year 0 Cost
Construction Costs
Insulate 24x24 0 4 lnft $75 $300
Insulate 48x24 0 2 lnft $125 $250
Estimating contingency 0 15%$83
Overhead & profit 0 30%$190
Design fees 0 10%$82
Project management 0 8%$72
Energy Costs
Fuel Oil 1 - 25 -130 gal $4.03 ($14,867)
Net Present Worth ($13,900)
EEM-19: Optimize Electric Room 1152 Heat Recovery
Energy Analysis
Number kVA ηnew KW kWh kBtu η boiler Factor Gallons
2 225 99.0% 4.5 -39,420 -134,501 68%15%-214
Life Cycle Cost Analysis Year Qty Unit Base Cost Year 0 Cost
Construction Costs
Adjust themrostats 0 1 ea $100 $100
Install circulation fan 0 1 ea $700 $700
Electrical 0 1 ea $300 $300
Estimating contingency 0 15%$165
Overhead & profit 0 30% $379.50
Design fees 0 10%$164
Project management 0 8%$145
Energy Costs
Fuel Oil 1 - 25 -214 gal $4.03 ($24,458)
Net Present Worth ($22,500)
Bartlett Regional Hospital 38 Energy Audit (March 2012)
Alaska Energy Engineering LLC Energy and Life Cycle Cost Analysis
25200 Amalga Harbor Road Tel/Fax: 907.789.1226
Juneau, Alaska 99801 jim@alaskaenergy.us
Bartlett Regional Hospital
EEM-20: Install Room 3363 Heat Recovery
Energy Analysis
Number kVA ηnew KW kWh kBtu η boiler Factor Gallons
2 75 98.5% 2.3 -19,710 -67,251 68%50%-357
1 9 98.0% 0.2 -1,577 -5,380 68%50%-29
-386
Electricity
Unit BHP kW Hours kWh
Fan Coil 0.25 0.19 8,760 1,634
Life Cycle Cost Analysis Year Qty Unit Base Cost Year 0 Cost
Construction Costs
Fan coil unit 0 1 LS $1,700 $1,700
Electrical 0 1 ea $300 $300
Estimating contingency 0 15%$300
Overhead & profit 0 30% $690.00
Design fees 0 10%$299
Project management 0 8%$263
Energy Costs
Electric Energy 1 - 25 1,634 kWh $0.063 $2,018
Fuel Oil 1 - 25 -386 gal $4.03 ($44,024)
Net Present Worth ($38,500)
EEM-21: Optimize ASU-1 Heat Recovery System
Energy Analysis
Ventilation SA CFM MAT T,room MBH Hours kBtu η boiler Gallons
Heating Existing -10,350 55 65 -112 8,760 -979,193 72%-9,819
Optimized 10,350 57 65 89 8,760 783,354 72%7,856
-195,839 -1,964
SA CFM MAT T,room MBH Hours kBtu COP kWh
Coeating Existing -20,700 52 65 -291 8,760 -2,545,901 3.3 -226,109
Optimized 20,700 57 65 179 8,760 1,566,708 3.3 139,144
-979,193 -86,965
Life Cycle Cost Analysis Year Qty Unit Base Cost Year 0 Cost
Construction Costs
Install 3-way control valve and controls 0 1 ea $17,000 $17,000
Estimating contingency 0 15%$2,550
Overhead & profit 0 30%$5,865
Design fees 0 10%$2,542
Project management 0 8%$2,237
Energy Costs
Electric Energy 1 - 25 -86,965 kWh $0.063 ($107,410)
Fuel Oil 1 - 25 -1,964 gal $4.03 ($224,220)
Net Present Worth ($301,400)
Bartlett Regional Hospital 39 Energy Audit (March 2012)
Alaska Energy Engineering LLC Energy and Life Cycle Cost Analysis
25200 Amalga Harbor Road Tel/Fax: 907.789.1226
Juneau, Alaska 99801 jim@alaskaenergy.us
Bartlett Regional Hospital
EEM-22: Optimize ASU-17 System
Energy Analysis
SA CFM MAT, ex MAT, new MBH Hours kBtu η boiler Gallons
Heating Existing -3,200 58.5 60 -5 7,780 -40,332 72%-404
SA CFM MAT, ex MAT, new MBH Hours kBtu COP kWh
Coeating Existing -3,200 57 60 -10 8,237 -85,401 3.3 -7,585
Unoccupied
Unit MBH, exist MBH, prop MBH Hours kBtu η boiler Gallons
ASU-17 -6.5 0.8 -6 3,300 -18,810 68% -200
Life Cycle Cost Analysis Year Qty Unit Base Cost Year 0 Cost
Construction Costs
Repair hetaing and cooling valves 0 1 ea $1,300 $1,300
Repipe 3-way valve 0 1 ea $2,300 $2,300
Control modifications 0 1 ea $1,150 $1,150
Estimating contingency 0 15% $712.50
Overhead & profit 0 30% $1,638.75
Design fees 0 10%$710
Project management 0 8%$625
Energy Costs
Electric Energy 1 - 25 -7,585 kWh $0.063 ($9,368)
Fuel Oil 1 - 25 -604 gal $4.03 ($68,979)
Net Present Worth ($69,900)
EEM-23: Install Room 3482 Heat Recovery
Energy Analysis
Number kVA ηnew KW kWh kBtu η boiler Factor Gallons
1 75 98.5% 1.1 -9,855 -33,625 68%75%-268
Electricity
Unit BHP kW Hours kWh
Fan Coil 0.15 0.11 8,760 980
Life Cycle Cost Analysis Year Qty Unit Base Cost Year 0 Cost
Construction Costs
Fan coil unit 0 1 LS $1,500 $1,500
Electrical 0 1 ea $300 $300
Estimating contingency 0 15%$270
Overhead & profit 0 30% $621.00
Design fees 0 10%$269
Project management 0 8%$237
Energy Costs
Electric Energy 1 - 25 980 kWh $0.063 $1,211
Fuel Oil 1 - 25 -268 gal $4.03 ($30,572)
Net Present Worth ($26,200)
Bartlett Regional Hospital 40 Energy Audit (March 2012)
Alaska Energy Engineering LLC Energy and Life Cycle Cost Analysis
25200 Amalga Harbor Road Tel/Fax: 907.789.1226
Juneau, Alaska 99801 jim@alaskaenergy.us
Bartlett Regional Hospital
EEM-24: Optimize ASU-15 System
Energy Analysis
Heating savings SA CFM MAT T,room MBH Hours kBtu η boiler Gallons
Boiler room -15,500 50 54.5 -75 4,238 -319,249 72%-3,201
Heat recovery -15,500 53 54.5 -25 4,238 -106,416 72%-1,067
Cooling SA CFM MAT T,room MBH Hours kBtu COP kWh
Existing -15,500 50 54.5 -75 510 -38,418 3.3 -3,412
Life Cycle Cost Analysis Year Qty Unit Base Cost Year 0 Cost
Construction Costs
Boiler room ceiling insulation 0 2,100 sqft $4 $8,400
Install F&B dampers 0 1 ea $22,000 $22,000
Controls 0 1 ea $5,000 $5,000
Estimating contingency 0 15%$5,310
Overhead & profit 0 30% $12,213
Design fees 0 10%$5,292
Project management 0 8%$4,657
Energy Costs
Electric Energy 1 - 25 -3,412 kWh $0.063 ($4,214)
Fuel Oil 1 - 25 -4,269 gal $4.03 ($487,354)
Net Present Worth ($428,700)
EEM-25: Optimize Snowmelt System - Heli Pad
Energy Analysis
kBtu/yr, ex kBtu/yr, new kBtu η boiler Gallons
-450,000 360,000 -90,000 72% -903
Life Cycle Cost Analysis Year Qty Unit Base Cost Year 0 Cost
Construction Costs
Reconfigure snowmelt controls 0 1 ea $8,000 $8,000
Estimating contingency 0 15%$1,200
Overhead & profit 0 30%$2,760
Design fees 0 10%$1,196
Project management 0 8%$1,052
Energy Costs
Fuel Oil 1 - 25 -903 gal $4.03 ($103,043)
Net Present Worth ($88,800)
EEM-26: Optimize Chilled Water System WCU-1 and WCU-2
Energy Analysis
GPH Head η pump BHP η motor kW Hours kWh
-120 20 60% -1.4 89% -1.1 7,800 -8,847
Life Cycle Cost Analysis Year Qty Unit Base Cost Year 0 Cost
Construction Costs
Reconfigure pump operation 0 1 ea $1,000 $1,000
Estimating contingency 0 15%$150
Overhead & profit 0 30%$345
Design fees 0 10%$150
Project management 0 8%$132
Energy Costs
Electric Energy 1 - 25 -8,847 kWh $0.063 ($10,927)
Net Present Worth ($9,200)
Bartlett Regional Hospital 41 Energy Audit (March 2012)
Alaska Energy Engineering LLC Energy and Life Cycle Cost Analysis
25200 Amalga Harbor Road Tel/Fax: 907.789.1226
Juneau, Alaska 99801 jim@alaskaenergy.us
Bartlett Regional Hospital
EEM-27: Install Heat Recovery Systems
Energy Analysis
Boiler Room
Input, MBH Jacket Loss MBH Hours Loss, kBtu Factor Recovery, kBtu η boiler Gallons
-35,889 1.00% -359 8,760 -3,143,867 72% -2,263,584 82% -19,931
Mechanical Room 1128
MBH Hours Loss, kBtu Factor Recovery, kBtu η boiler Gallons
-200 8,760 -1,752,000 72% -1,261,440 82% -11,107
Mechanical Room 1987
MBH Hours Loss, kBtu Factor Recovery, kBtu η boiler Gallons
-60 8,760 -525,600 72% -378,432 82% -3,332
Electrical 1150
Number kVA ηnew KW kWh Factor Recovery, kBtu η boiler Gallons
-1 30 98.4% -0.5 -4,205 72% -10,330 82%-91
-1 500 99.1% -4.5 -39,420 72% -96,841 82%-853
Electrical 1127
Number kVA ηnew KW kWh Factor Recovery, kBtu η boiler Gallons
-1 113 97.6% -2.7 -23,652 72% -58,104 82%-512
-1 500 99.1% -4.5 -39,420 72% -96,841 82%-853
-1 30 98.4% -0.5 -4,205 72% -10,330 82%-91
Compressor 1130D
HP ηnew kW Hours kWh Factor Recovery, kBtu η boiler Gallons
-7.5 91.7% -0.46 8,760 -4,068 72% -9,994 82%-88
-15.0 92.4% -0.85 8,760 -7,450 72% -18,302 82%-161
Heat Pump Energy
Recovery, kBtu COP kWh HP Heat, kBtu η boiler Gallons
-4,204,197 3 410,727 1,401,399 82% -12,340
Life Cycle Cost Analysis Year Qty Unit Base Cost Year 0 Cost
Construction Costs
Heat recovery loop, pumps, and controls 0 1 LS $170,000 $170,000
Heat pumps and controls
Boiler room 0 1 LS $80,000 $80,000
Mech 1128 0 1 LS $56,000 $56,000
Mech 1987 0 1 LS $21,000 $21,000
Elec 1150 0 1 LS $14,000 $14,000
Elec 1127 0 1 LS $14,000 $14,000
Comp 1390D 0 1 LS $21,000 $21,000
Replace AHU-3/4 0 1 LS $70,000 $70,000
Replace AHU-2 0 1 LS $80,000 $80,000
Estimating contingency 0 15% $78,900
Overhead & profit 0 30% $181,470
Design fees 0 10% $78,637
Project management 0 8% $69,201
Annual Costs
Heat pump maintenance 1 - 25 6 LS $400.00 $40,865
Energy Costs
Electric Energy 1 - 25 410,727 kWh $0.063 $507,284
Electric Demand 1 - 25 60.0 kW $12.50 $14,748
Fuel Oil 1 - 25 -49,358 gal $4.03 ($5,635,299)
Net Present Worth ($4,138,200)
Bartlett Regional Hospital 42 Energy Audit (March 2012)
Alaska Energy Engineering LLC Energy and Life Cycle Cost Analysis
25200 Amalga Harbor Road Tel/Fax: 907.789.1226
Juneau, Alaska 99801 jim@alaskaenergy.us
Bartlett Regional Hospital
EEM-28: Optimize ASU-14 System
Energy Analysis
SA CFM MAT T,room MBH Hours kBtu COP kWh
Cooling Existing -4,500 62.7 70 -35 490 -17,384 3.3 -1,544
Life Cycle Cost Analysis Year Qty Unit Base Cost Year 0 Cost
Construction Costs
Optimize controls 0 1 ea $225 $225
Estimating contingency 0 15%$34
Overhead & profit 0 30%$78
Design fees 0 10%$34
Project management 0 8%$30
Energy Costs
Electric Energy 1 - 25 -1,544 kWh $0.063 ($1,907)
Net Present Worth ($1,500)
EEM-29: Replace Transformers
Energy Analysis
Number kVA ηold ηnew KW kWh
4 15 96.2% 98.1% -1.1 -9,986
5 30 96.8% 98.4% -2.4 -21,024
8 75 97.4% 98.7% -7.8 -68,328
3 112.5 97.6% 98.8% -4.1 -35,478
1 150 97.8% 98.9% -1.7 -14,454
2 225 98.0% 99.0% -4.5 -39,420
1 500 98.2% 99.1% -4.5 -39,420
-26.0 -228,110
Life Cycle Cost Analysis Year Qty Unit Base Cost Year 0 Cost
Construction Costs
Replace transformer, kVA 15 0 4 LS $3,900 $15,600
Replace transformer, kVA 30 0 5 LS $4,900 $24,500
Replace transformer, kVA 75 0 8 LS $10,400 $83,200
Replace transformer, kVA 112.5 0 3 LS $12,400 $37,200
Replace transformer, kVA 150 0 1 LS $15,300 $15,300
Replace transformer, kVA 225 0 2 LS $18,200 $36,400
Replace transformer, kVA 500 0 1 LS $35,100 $35,100
Estimating contingency 0 10% $24,730
Overhead & profit 0 30% $81,609
Design fees 0 10% $35,364
Project management 0 8% $31,120
Energy Costs
Electric Energy 1 - 25 -228,110 kWh $0.063 ($281,737)
Electric Demand 1 - 25 -312 kW $12.50 ($76,809)
Net Present Worth $61,600
Bartlett Regional Hospital 43 Energy Audit (March 2012)
Alaska Energy Engineering LLC Energy and Life Cycle Cost Analysis
25200 Amalga Harbor Road Tel/Fax: 907.789.1226
Juneau, Alaska 99801 jim@alaskaenergy.us
Bartlett Regional Hospital
EEM-30: Upgrade Exterior Lighting to LED
Energy Analysis
Type # Fixtures Lamp Lamp, watts Fixture Watts Lamp Lamp, watts Fixture Watts Savings, kWh
WallPak 17 MH 150 190 LED -80 -8,191
Lamp Post 9 HPS 175 190 LED -90 -3,942
Cobra Head 8 HPS 250 295 LED -106 -6,623
-18,755
Lamp Replacement
Type # Fixtures Lamp # Lamps Life, hrs Lamps//yr $ / lamp $ / Replace
WallPak 17 MH -1 15,000 -4.96 $40 $20
Lamp Post 9 HPS -1 24,000 -1.64 $60 $20
Cobra Head 8 HPS -1 24,000 -1.46 $60 $60
WallPak 17 LED 1 60,000 1.24 $190 $20
Lamp Post 9 LED 1 60,000 0.66 $190 $20
Cobra Head 8 LED 1 60,000 0.58 $200 $60
Life Cycle Cost Analysis Year Qty Unit Base Cost Year 0 Cost
Construction Costs
Replace WallPak: 150 watt MH with LED 0 17 LS $525 $8,925
Replace WallPak: 150 watt HPS with LED 0 9 LS $900 $8,100
Replace Cobra Head: 250 watt HPS with LED 1 8 LS $900 $6,994
Estimating contingency 0 15%$2,554
Overhead & profit 0 30%$7,972
Design fees 0 10%$3,454
Project management 0 8%$3,040
Annual Costs
Existing lamp replacement, 150 watt MH 1 - 25 -4.96 lamps $60.00 ($5,071)
Existing lamp replacement, 150 watt HPS 1 - 25 -1.64 lamps $80.00 ($2,237)
Existing lamp replacement, 250 watt HPS 1 - 25 -1.46 lamps $120.00 ($2,983)
LED board replacement, 80 watts 1 - 25 1.24 LED board $210.00 $4,437
LED board replacement, 80 watts 1 - 25 0.66 LED board $210.00 $2,349
LED board replacement, 106 watts 1 - 25 0.58 LED board $260.00 $2,585
Energy Costs
Electric Energy 1 - 25 -18,755 kWh $0.063 ($23,164)
Net Present Worth $17,000
Existing Replacement
Bartlett Regional Hospital 44 Energy Audit (March 2012)
Appendix B
Energy and Utility Data
Bartlett Regional Hospital 45 Energy Audit (March 2012)
Alaska Energy Engineering LLC Billing Data
25200 Amalga Harbor Road Tel/Fax: 907-789-1226
Juneau, Alaska 99801 jim@alaskaenergy.us
Bartlett Regional Hospital
ELECTRIC RATE
Electricity ($ / kWh )0.0611 0.0592
Demand ( $ / kW )14.30 9.11
Customer Charge ( $ / mo )99.24 99.24
Sales Tax ( % )0.0% 0.0%
ELECTRICAL CONSUMPTION AND DEMAND
kWh kW kWh kW kWh kW kWh kW
Jan 275,100 427 343,400 607 371,200 637 375,500 776 341,300
Feb 323,600 554 340,000 594 345,900 620 395,300 774 351,200
Mar 336,500 663 313,900 580 339,100 643 356,100 792 336,400
Apr 364,700 656 334,500 595 381,700 662 407,700 776 372,150
May 346,800 629 317,000 581 376,000 669 369,000 778 352,200
Jun 355,100 632 299,200 559 377,900 752 406,700 842 359,725
Jul 349,900 647 306,700 569 386,500 723 417,400 816 365,125
Aug 360,700 638 318,100 567 423,400 754 406,900 836 377,275
Sep 360,900 652 336,800 651 400,400 738 436,700 872 383,700
Oct 347,100 643 332,600 608 376,400 653 388,800 830 361,225
Nov 360,400 606 345,000 608 356,300 649 398,500 796 365,050
Dec 326,000 611 345,400 616 357,800 736 384,900 775 353,525
Total 4,106,800 3,932,600 4,492,600 4,743,500 4,318,875
Average 342,233 613 327,717 595 374,383 686 395,292 805 359,906
Load Factor 76.5% 75.5% 74.7% 67.2% 675
ELECTRIC BILLING DETAILS
Month Energy Demand Cust & Tax Total Energy Demand Cust & Tax Total % Change
Jan 22,680 9,109 99 31,889 22,943 11,097 99 34,139 7.1%
Feb 21,134 8,866 99 30,100 24,153 11,068 99 35,320 17.3%
Mar 20,719 9,195 99 30,013 21,758 11,326 99 33,183 10.6%
Apr 23,322 9,467 99 32,888 24,910 11,097 99 36,107 9.8%
May 22,974 9,567 99 32,640 22,546 11,125 99 33,771 3.5%
Jun 23,090 6,851 99 30,040 24,849 7,671 99 32,619 8.6%
Jul 23,615 6,587 99 30,301 25,503 7,434 99 33,036 9.0%
Aug 25,870 6,869 99 32,838 24,862 7,616 99 32,577 -0.8%
Sep 24,464 6,723 99 31,287 26,682 7,944 99 34,726 11.0%
Oct 22,998 5,949 99 29,046 23,756 7,561 99 31,416 8.2%
Nov 21,770 9,281 99 31,150 24,348 11,383 99 35,830 15.0%
Dec 21,862 10,525 99 32,486 23,517 11,083 99 34,699 6.8%
Total $ 274,498 $ 98,987 $ 1,191 $ 374,676 $ 289,828 $ 116,404 $ 1,191 $ 407,422 8.7%
Average $ 22,875 $ 8,249 $ 99 $ 31,223 $ 24,152 $ 9,700 $ 99 $ 33,952 8.7%
Cost ($/kWh)$0.083 71% 29% 0% $0.086 3.0%
Electrical costs are based on the current electric rates.
2009 2010
2010
AEL&P Electric Rate 24 On-Peak
Nov-May
Off-peak
Jun-Oct
Month 2007 2008 2009 Average
Bartlett Regional Hospital 46 Energy Audit (March 2012)
Alaska Energy Engineering LLC Annual Electric Consumption
25200 Amalga Harbor Road Tel/Fax: 907-789-1226
Juneau, Alaska 99801 jim@alaskaenergy.us
Bartlett Regional Hospital
0
50,000
100,000
150,000
200,000
250,000
300,000
350,000
400,000
450,000
500,000
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov DecElectric Use (kWh)Month of the Year
Electric Use History
2007
2008
2009
2010
0
100
200
300
400
500
600
700
800
900
1,000
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov DecElectric Demand (kW)Month of the Year
Electric Demand History
2007
2008
2009
2010
Bartlett Regional Hospital 47 Energy Audit (March 2012)
Alaska Energy Engineering LLC Electric Cost
25200 Amalga Harbor Road Tel/Fax: 907-789-1226
Juneau, Alaska 99801 jim@alaskaenergy.us
Bartlett Regional Hospital 2010
$ 0
$ 5,000
$ 10,000
$ 15,000
$ 20,000
$ 25,000
$ 30,000
$ 35,000
$ 40,000
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov DecElectric Cost (USD)Month of the Year
Electric Cost Breakdown
2010
Electric Use (kWh) Costs
Electric Demand (kW) Costs
Customer Charge and Taxes
720
740
760
780
800
820
840
860
880
0
50,000
100,000
150,000
200,000
250,000
300,000
350,000
400,000
450,000
500,000
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Electric Demand (kW)Electric Use (kWh)Month of the Year
Electric Use and Demand Comparison
2010
Electric Use
Electric Demand
Bartlett Regional Hospital 48 Energy Audit (March 2012)
Alaska Energy Engineering LLC Annual Fuel Oil Consumption
25200 Amalga Harbor Road Tel/Fax: 907-789-1226
Juneau, Alaska 99801 jim@alaskaenergy.us
Bartlett Regional Hospital
Year Fuel Oil Degree Days
2,007 193,464 9,282
2,008 178,650 9,093
2,009 134,694 9,284
2,010 215,850 9,013
5,000
6,000
7,000
8,000
9,000
10,000
80,000
100,000
120,000
140,000
160,000
180,000
200,000
220,000
2007 2008 2009 2010 Degree DaysGallons of Fuel OilYear
Annual Fuel Oil UseFuel Oil
Degree Days
Bartlett Regional Hospital 49 Energy Audit (March 2012)
Alaska Energy Engineering LLC Annual Water Consumption
25200 Amalga Harbor Road Tel/Fax: 907-789-1226
Juneau, Alaska 99801 jim@alaskaenergy.us
Bartlett Regional Hospital
Year Water
2007 12,312,000
2008 10,320,000
2009 11,280,000
2010 13,608,000
5,000,000
6,000,000
7,000,000
8,000,000
9,000,000
10,000,000
11,000,000
12,000,000
13,000,000
14,000,000
2007 2008 2009 2010Gallons of WaterYear
Annual Water Use
Bartlett Regional Hospital 50 Energy Audit (March 2012)
Alaska Energy Engineering LLC
25200 Amalga Harbor Road Tel/Fax: 907-789-1226
Juneau, Alaska 99801 jim@alaskaenergy.us
Annual Energy Consumption and Cost
Energy Cost $/MMBtu Area ECI EUI
Fuel Oil $3.80 $39.20 138,909 $8.07 297
Electricity $0.087 $26.83
Source Cost
Electricity 4,318,875 kWh $375,600 14,700 36%
Fuel Oil 195,988 Gallons $744,800 26,600 64%
Totals $1,120,400 41,300 100%
Annual Energy Consumption and Cost
Consumption Energy, MMBtu
$0
$5
$10
$15
$20
$25
$30
$35
$40
$45
Fuel Oil ElectricityCost $ / MMBtuCost of Heat Comparison
Bartlett Regional Hospital 51 Energy Audit (March 2012)
Appendix C
Equipment Data
Bartlett Regional Hospital 52 Energy Audit (March 2012)
MotorHP / Volts / RPM / EfficCWP-3 30Primary Chilled H2O TacoF13007E2FAJILOH340 GPM @ 50'7.5 HP/ 480 V/ 1770 RPM/ 91.7% Bartlett 0064CWP-4 30MRI Chilled Water TacoKU1509AE2JCBTRDP43 GPM @ 70'3 HP/ 480 V/ 1750 RPM/ 90.2%E-1 30Helicopter Pad Heat Taco 1636C3E36.41.5 HP/ 480 V/ 1725 RPME-4 30Helicopter Pad Heat Taco 163503E2.2.653/4 HP/ 480 V/ 1725 RPMXFMR 3363N43UFederal Pacific36 K75 KVAXFMR 3363CB43C1Federal Pacific36 K75 KVAXFMR 3363LS43C1Federal Pacific36 B9 KVACooler 1031120 HKolPak Cooler HeatCraft AD7090ASWJ1/20 HP/ 115 V (2 Motors)Cooler 1091120 HKolPak Cooler HeatCraft AD7090ASWJ1/20 HP/ 115 V (2 Motors)Freezer 1061120 HKolPak Cooler Heat LET160BSWJ1/20 HP/ 208 V/ 4.6 Amps (4 Motors)Freezer 1081120 HKolPak Cooler Heat LET160BSWJ1/20 HP/ 208 V (4 Motors)Refrig. 1120 HRefrigerator True TS-721/2 HP/ 115 V/ 12 AXFMR ASU 17 Fan Room XFMRSquare D 15T3HB 15 KVA Non TPI 80°C temp riseHWP-2B Mechanical 1128Heating Hot Water SupplyArmstrong 4x3x10260 GPM 7.5 HP/ 480 V/ 1770 RPM/ 91.7% VFDT-CDPBehind Maintenance ShopCDP XFMR GE 9723B3874 75 KVA Non TPI 115°C temp riseB-1 BG Boiler 1153 BoilerCleaver BrooksCB-500-150ST 17250 lbs/hr15 HP/ 460 V/ 3550 RPM/ 91.7% (blower)7.5 HP/ 480 V/ 1760 RPM (air compressor)B-2 BG Boiler 1153 BoilerCleaver BrooksCB-500-150ST 17250 lbs/hr15 HP/ 460 V/ 3550 RPM/ 91.7% (blower)7.5 HP/ 480 V/ 1760 RPM (air compressor)Bartlett Regional Hospital - Major Equipment InventoryCapacityNotesUnit IDLocation Function Make Model
Bartlett Regional Hospital 53 Energy Audit (March 2012)
MotorHP / Volts / RPM / EfficBartlett Regional Hospital - Major Equipment InventoryCapacityNotesUnit IDLocation Function Make ModelFTP-1BG Boiler Room 1153Fuel Transfer Pump Simplex SPS-20DX 5 GPM 1/3 HP/ 120 VFTP-2BG Boiler Room 1153Fuel Transfer Pump Simplex SPS-20DX 5 GPM 1/3 HP/ 120 VEF-35BG Electric Room 1127BG Electric Room 1127Greenheck 6B-091-4X 2600 cfm 2 HP/ 480 VEF-34BG Emergency Dist. 1151BG Emergency Dist. 1151Greenheck 5WB-216-15-TCW 2100 cfm 1.5 HP/ 480 V/ 1725 RPM Bartlett 0027SF-3BG Maintenance 1130AGround Floor 1971 Pace A153100 cfm 3 HP/ 480 V/ 1760 RPM/ 89.5% Bartlett 0075DEAER-1BG Mechanical 1128De-AeratorCleaver Brooks7.5 HP/ 480 V/ 3525 RPM/ 91% Feed Pump 1 &2HWCP-1BG Mechanical 1128Domestic Hot Water Circulation Taco 4619T3E31 HP/ 480 V/ 1725 RPMHWCP-2BG Mechanical 1128Domestic Hot Water CirculationTaco 4619T3E31 HP/ 480 V/ 1725 RPMHWP-1BG Mechanical 1128Heating Hot Water SupplyArmstrong 4x3x10260 GPM 7.5 HP/ 480 V/ 1770 RPM/ 91.7% VFDHWP-3BG Mechanical 1128Heating Hot Water SupplyTaco 2509170 GPM 5 HP/ 480 V/ 1770 RPM/ 90.2% VFDHWP-4BG Mechanical 1128Heating Hot Water SupplyTaco 2509170 GPM 5 HP/ 480 V/ 1770 RPM/ 90.2% VFDSF-4BG Mechanical 1139LaundryGreenheck LFC-30-FC-30 1935 cfm 3 HP/ 480 V/ 1720 cfmVFD 100%ASU-2BG Mechanical 1141Kitchen Hoods 1971 Pace A-22AF8940 cfm 5 HP/ 480 V/ 1745 RPM Bartlett 0065ASU-18BG Mechanical 3201Level 1, 2004-07 additionHaakon AirpakASU-19BG Mechanical 3201Level 2&3 2004-7 Haakon AirPakBartlett 0062EF-21BG Mechanical 3201Level 2004-7 Exhaust Greenheck8WB218-20-CW-UBX4300 cfm 2 HP/ 480 VBartlett 0053SMP-1BG Mechanical 3201Snowmelt Circulation PumpTaco 161650 GPM 1 HP/ 480 V
Bartlett Regional Hospital 54 Energy Audit (March 2012)
MotorHP / Volts / RPM / EfficBartlett Regional Hospital - Major Equipment InventoryCapacityNotesUnit IDLocation Function Make ModelEF-22BG Mechanical 3202Isolation Room 2830 GreenheckSWV-W2-110-7CB-UBX590 cfm 3/4 HP/ 480 V VFD 58 Hz / Bartlett 0054SF-19BG Mechanical 3202AHU 19 supply fan 25500 cfm 30 HP/ 480 V VFD 100%EF-23BG Mechanical 3203Level 2&3 2004-7Barry BlowerRPK 2211 7040 cfm 5 HP/ 480 VBartlett 0055RF-19BG Mechanical 3203AHU 19 return fan12500 cfm 5 HP/ 480 VEF-24BG Mechanical 3204Smoking Room 3112 Hunt Air MCF 500A 180 cfm 1/6 HP/ 120 VEF-25BG Mechanical 3205Dark Room 1310/1325 Greenheck MSCF-15L-FC-4 380 cfm 1/4 HP/ 120 VBartlett 0056EF-26BG Mechanical 3206BG Mechanical Room 3201Hunt Air MCF 6000 A 4200 cfm 1.5 HP/ 480 VEF-37BG Mechanical 4180BG Mechanical Room 4180Greenheck CSD-A700-Q2 760 W 115 HPSF-32 Boiler Room 1153 Boiler Room 1153 Greenheck BSQ-180-15 5000 cfm 2 HP/ 480 VSF-33 Boiler Room 1153BG Mechanical Room 1128/1150Greenheck BSQ-180-30 6000 cfm 3 HP/ 480 VEF-30 ED Decon 1431 ED Decon 1431 Greenheck Elite 101-3-X 890 cfm 1/3 HP/ 480 VBartlett 0034EF-36Elevator Room 4183Elevator Room 4182 Greenheck GB-091-4X 1750 cfm 1/2 HP/ 120 VD-1 Laundry DryerAmerican Dryer Co.ADE758B 30 KW 480 V/ 41 AmpsD-2 Laundry DryerAmerican Dryer Co.ADE758B 30 KW 480 V/ 41 AmpsD-3 Laundry DryerAmerican Dryer Co.ADE758B 30 KW 480 V/ 41 AmpsD-4 Laundry DryerAmerican Dryer Co.ADE758B 30 KW 480 V/ 41 AmpsD-5 Laundry DryerAmerican Dryer Co.ADE758B 30 KW 480 V/ 41 Amps
Bartlett Regional Hospital 55 Energy Audit (March 2012)
MotorHP / Volts / RPM / EfficBartlett Regional Hospital - Major Equipment InventoryCapacityNotesUnit IDLocation Function Make ModelWM-1 Laundry Washing Machine Wascomat 9867910197 55 lbs 240 V/ 7.6 AmpsWM-2 Laundry Washing Machine Wascomat 9867910197 55 lbs 240 V/ 7.6 AmpsWM-3 Laundry Washing Machine Wascomat 9867910197 55 lbs 240 V/ 7.6 AmpsWM-4 Laundry Washing Machine Wascomat 9867910197 55 lbs 240 V/ 7.6 AmpsT-LS1B1Level 1/ A2 LS 21 B1 XFMR Square D30T3HFISNLP35BD30 KVA Non TPI 115°C temp riseT-N1B1Level 1/ A2 N21B1Square D75T3HFISNLP35DB75 KVA Non TPI 115°C temp riseTCB1C1Level 1/ R1 CBDP2 XFMR Square D 225T3HFISNLP 225 KVA Non TPI 115°C temp rise Room 1152TLS1C1Level 1/ R1LS 41C1/ LS 2X1 XFMRSquare D 15T3HFISNLP 15 KVA Non TPI 115°C temp rise Room 1152T-N1C1Level 1/ R1 N21C1Square D 30T3H35DB 30 KVA Non TPI 150°C temp rise Room 1150T-NDP1Level 1/ R1 NDP1 XFMR Square D 500T68HEE 500 KVA Non TPI 150°C temp rise Room 1150T-EQ1C1Level 1/ R2 Panel EQDP 2 Square D 225T3HEE 225 KVA Non TPI 150°C temp rise Room 1152T-2PTEBMechanical Penthouse2PTN1EGE 9T23B3871 15/15 KVA Non TPI 115°C temp riseHtEx 1Mechanical Room 1153Heat Exchange Armstrong W5X-67-2 Boiler to domestic hot waterHtEx 2Mechanical Room 1153Heat Exchange Armstrong W5X-67-2 Boiler to domestic hot waterHtEx3Mechanical Room 1153Heat Exchange Armstrong W5X-67-2 Boiler to domestic hot waterCWP-5 Penthouse 2 ASU 13/14 chill pump Taco5 HP/ 480 V/ 1760 RPM/ 88.5% Bartlett 0051 / ASU 13/14CWP-6 Penthouse 2chiller circulation pumpTaco1.5 HP/ 480 V/ 1740 RPM/ 84%Bartlett Regional Hospital 56 Energy Audit (March 2012)
MotorHP / Volts / RPM / EfficBartlett Regional Hospital - Major Equipment InventoryCapacityNotesUnit IDLocation Function Make ModelASU-1 Penthouse Z-1 1968 Building Greenheck Cube-101-4-GBartlett 0025EF-1 Penthouse Z-1 1968 Building Exhaust24595 cfm 15 HP/ 480 V/ 1760 RPM Bartlett 0026EF-18 Penthouse Z-1 Exhaust Fan Pace430 cfmBartlett 0029EF-2 Penthouse Z-1 Kitchen Hoods 1971 GreenheckSWB-224-60-80W-UB-68052 cfm 5 HP/ 480 VBartlett 0030EF-28 Penthouse Z-1 Isolation Suites GreenheckSWB-220-10CCW-UB-X2000 cfm 1.5 HP/ 480 V/ 1725 RPM Bartlett 0028 / VFDEF-29 Penthouse Z-1Pharmacy 4 3484 Fume HoodGreenheck 6B-141-2-X 735 cfm 1/2 HP/ 480 VEF-3 Penthouse Z-1 Laundry Dryers Greenheck Cube 360XP-75-X7.5 HP/ 480 V/ 1750 RPM VFD 100%EF-31 Penthouse Z-1Pharmacy 4 3484 & 3480Greenheck GB-141HP-7-X 655 cfm 1/4 HP/ 120 V/ 1725 RPMGMP Penthouse Z-1 Glycol Make Up Pump B&G 60-1S51/4 HP/ 110 V/ 1725 RPMHRP-8 Penthouse Z-1 Glycol Return Pump Armstrong1/2 HP/ 480 V/ 1725 RPMSF-1 Penthouse Z-1 1968 Building Supply20685 cfm 25 HP/ 480 V/ 1770 RPMXFMR Penthouse Z-1 Transformer Square D EE75T3H 75 KVA Non TPI 150°C temp riseASU-13Penthouse Z-2 Level 2 Radiology Temtrol DH 13 MBartlett 0045ASU-14Penthouse Z-2 EmergencyTemtrol DH10MBartlett 0047CWP-2 Penthouse Z-2 Chilled Water Pump Taco FE200GE1.5 HP/ 480 V/ 1760 RPM/ 86.5%EF-13 Penthouse Z-2 Exhaust Fan Pace A16B181 4500 cfm 2 HP/ 480 VEF-14 Penthouse Z-2 Exhaust Fan Pace U-9F-STD 850 cfm 1/2 HP/ 480 VBartlett 0048Bartlett Regional Hospital 57 Energy Audit (March 2012)
MotorHP / Volts / RPM / EfficBartlett Regional Hospital - Major Equipment InventoryCapacityNotesUnit IDLocation Function Make ModelHWP-17APenthouse Z-2Heating Circulation PumpTaco 1611C3NI 1/3 HP/ 1725 RPM/ 240 V Serves ASU 17HWP-17BPenthouse Z-2Heating Circulation PumpTaco 1611C3NI1/3 HP/ 1725 RPM/ 240 V Serves ASU 17RF Penthouse Z-2 AHU 13 return fan1865 cfm 2 HP/ 480 VRF Penthouse Z-2 AHU 14 return fan1720 cfm 2 HP/ 480 VSF Penthouse Z-2 AHU 13 supply fan 6155 cfm 10 HP/ 480 VSF Penthouse Z-2 AHU 14 supply fan 2795 cfm 5 HP/ 480 VASU-11Penthouse Z-3 SurgeryTemtrol DH 18WBartlett 0043ASU-12Penthouse Z-3Level 2 Patient AdmissionTemtrol DH 16MEF-11 Penthouse Z-3 SurgeryPace U-8FSTD 200 cfmBartlett 0044EF-12 Penthouse Z-3 Administration Area Pace U-13FSTD 1625 cfm 3/4 HP/ 480 V/ 1725 RPM/ 75.5%RF Penthouse Z-3 AHU 11 return fan5 HP/ 480 VRF Penthouse Z-3 AHU 12 return fan5900 cfm 5 HP/ 480 VSF Penthouse Z-3 AHU 11 supply fan15 HP/ 480 VSF Penthouse Z-3 AHU 12 supply fan6000 cfm 10 HP/ 480 V/ 1725 RPM/ 89.5%ASU-17Penthouse Z-4 Surgery East 3rd Floor Pace PF13AFSWS1 3200 cfmBartlett 0038EF-20 Penthouse Z-4 Surgery Wing ExhaustCentrimasterQBR 100-E2 575 cfm 1/4 HP/ 115 VBartlett 0039RF-17 Penthouse Z-4 ASU 17 return fanCentrimasterQBR 161 2500 cfm 1 HP/ 480 VBartlett 0040Bartlett Regional Hospital 58 Energy Audit (March 2012)
MotorHP / Volts / RPM / EfficBartlett Regional Hospital - Major Equipment InventoryCapacityNotesUnit IDLocation Function Make ModelXFMR Penthouse Z-4 Transformer Square D 15T3HB 15 KVA Non TPI 80°C temp riseWC4-1 Roof Air Conditioner McQuey AG7070BH27-ERH 70 tons serves ASU 1,11,12,13,14,17WCU-2 Roof Air Conditioner McQuey AG7050AS27FRID 50 ton serves ASU 1,11,12,13,14,17WCU-3 Roof Cooler Carrier30RBA1206B-0B725serves 15,18,19 + CT & MRIWCU-4 Roof Chiller Carrier30RAN018-EF613CXserves 15,18,19 + CT & MRIASU-15Roof (original) Lab AirHaakon PentpakRF-15 Roof (original) AHU 15 return air12400 cfm 15 HP/ 480 V/ 1750 RPMSF-15 Roof (original) AHU 15 supply air15500 cfm 20 HP/ 480 V/ 1770 RPMC-1 Room 1127Control Air CompressorQuincy5 HP/ 480 V/ 1740 RPM/ 82.5%(2 motors) 90 psi - 70 psi 5 min off 2 minT-EQ1C2Room 1127 EQ 21C3/ 41C2 XFMR Square D 112T3HEE 112.5 KVA Non TPI 150°C temp riseCond-P1Room 1130 Condensate Return GrundfosA36083201-P108077331/2 HP/ 240 V/ 3450 RPMCond-P2Room 1130Condensate Return PumpGrundfosA36083201-P108077331/2 HP/ 240 V/ 3450 RPMHWP-5 Room 1130 Heating Loop Pump B&G 2A6-1-2BF60 GPM @ 40'1.5 HP/ 480 V/ 1725 RPM Bartlett 0082HWP-6 Room 1130 Heating Loop Pump B&G 2A6-1-2BF60 GPM @ 40'1.5 HP/ 480 V/ 1725 RPM Bartlett 0083MVP-1 Room 1130 Vacuum Pump Amico IDRR155200 103.3 SCFM15 HP/ 480 V/ 1160 RPM/ 89.5% (x2)Bartlett 0059MVP-2 Room 1130 Vacuum Pump Amico 3DOV7.5PS1120D 28.6 SCFM7.5 HP/ 480 V/ 1750 RPM/ 88.5% (x2)Bartlett 0060TCB1A1Room 1303 CB21A1 XFMR Square D11273HFISNLP35DB112.5 KVA Non TPI 115°C temp rise
Bartlett Regional Hospital 59 Energy Audit (March 2012)
MotorHP / Volts / RPM / EfficBartlett Regional Hospital - Major Equipment InventoryCapacityNotesUnit IDLocation Function Make ModelT-N1A1Room 1303 N41A1Federal Pacific36 K150 KVA Non TPI 150°C temp riseT-N2B1Room 2010 N22B1Square D75T3HFISNLP35DB75 KVA Non TPI 115°C temp riseTCB21B1Room 210 CB22B1 XFMR Square D112T3HFISNLP35DB112.5 KVA Non TPI 115°C temp riseXFMR Room 2563 TransformerFederal Pacific75 KVAXFMR Room 2563 TransformerFederal Pacific30 KVAXFMR Room 2563 TransformerFederal Pacific30 KVAT-N3B1Room 3201 N23B1Square D30T3HFISNLP35DB30 KVA Non TPI 115°C temp riseXFMR Room 3482 XFMRFederal Pacific36 K75 KVA Non TPI 115°C temp riseServer Room CoolerLiebert Challenger 3000 5 Ton16Vacuum Pump OhmedaPTM-RBM3-1750-2-GH803 HP/ 480 V/ 1760 RPM/ 85.6% Two PumpsRF-18AHU 18 return fan16900 cfm 20 HP/ 480 VVF9 49.8 HzSF-18AHU 18 supply fan23110 cfm 40 HP/ 480 VVFD 89%Bartlett Regional Hospital 60 Energy Audit (March 2012)
Appendix D
Abbreviations
AHU Air handling unit
BTU British thermal unit
BTUH BTU per hour
CBJ City and Borough of Juneau
CMU Concrete masonry unit
CO2 Carbon dioxide
CUH Cabinet unit heater
DDC Direct digital controls
DHW Domestic hot water
EAD Exhaust air damper
EEM Energy efficiency measure
EF Exhaust fan
Gyp Bd Gypsum board
HVAC Heating, Ventilating, Air-
conditioning
HW Hot water
HWRP Hot water recirculating pump
KVA Kilovolt-amps
kW Kilowatt
kWh Kilowatt-hour
LED Light emitting diode
MBH 1,000 Btu per hour
MMBH 1,000,000 Btu per hour
OAD Outside air damper
PSI Per square inch
PSIG Per square inch gage
RAD Return air damper
RF Return fan
SIR Savings to investment ratio
SF Supply fan
UV Unit ventilator
VAV Variable air volume
VFD Variable frequency drive
Bartlett Regional Hospital 61 Energy Audit (March 2012)