HomeMy WebLinkAboutNW-SW reg Exec Sum Final Report Village End Use Effic Measures 2008
Northwest / Southwest Region
2007 – 2008
FINAL REPORT
AEA Grant # 2195225
Prepared for:
Alaska Energy Authority
813 West Northern Lights Blvd.
Anchorage, Alaska 99503
Phone (907) 269-3000
Fax (907) 269-3044
Prepared By:
Alaska Building Science Network
5401 Cordova St. Suite 303
Anchorage, Alaska 99511
Phone (907) 562-9927
Fax (907) 770-5412
March, 2009
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Alaska Building Science Network - Village End Use Energy Efficiency Measures Program – ’07-‘08 Final Reports West Region
Village End Use Energy Efficiency Measures Program ’07 – ’08
AEA Grant # 2195225 Administered by Alaska Building Science Network
Final Report - Executive Summary: Northwest – Southwest Region
- By ABSN Project Manager Geoff Butler, March, 2009
From Jan. 2007 – Jan. 2009 the following 6 rural Alaska villages received energy efficiency
upgrades to community buildings:
Brevig Mission, Chignik Lake, False Pass, Nikolski, Pedro Bay, White Mountain
Total program grant funds: $226,650 Grant funds averaged per village: $37,775
________________________________________________________________________
The goal of these grant projects is to facilitate energy efficiency upgrades to community buildings that
deliver the greatest energy savings at the fastest payback rate on grant funds. Energy efficient
lighting upgrades are the first measures undertaken. ABSN provides project development,
coordination, training, technical assistance, materials and logistical support to facilitate these projects.
For this grant cycle, to advance technology transfer and provide rural employment and skills training,
we partnered directly with 20 rural village entities region-wide and provided lighting retrofit training to
approximately 30 local maintenance staff who completed lighting and other energy upgrades in their
buildings. Region-wide, 48 community buildings and 16 teacher-housing units operated by rural
school districts received energy efficiency improvements.
At the inception of these grants in 2002, original energy audits for these projects estimated light fixture
(replacement) at a cost of $355 per fixture. Within this scenario, the 1,038 linear fluorescent light
fixtures retrofitted region-wide, alone, would have cost $368,490 to complete. With ABSN’s methods,
when we deduct materials costs of heating measures, T5 and CFL lighting materials grant-wide, our
cost for linear fluorescent retrofits is $176 per fixture. ABSN’s approach of partnering with local city,
tribal governments, village corporations and rural school districts, coupled with the substantial in-kind
contributions arising from these partnerships - facilitated the lighting upgrades and allowed us to
pursue additional energy savings measures. ABSN’s approach provides skills training and
employment for rural maintenance staff all at reduced costs compared with of original audit estimates
for these projects.
Primary Accomplishments of this Grant Region-wide for total budget of $226,650:
1,038 linear fluorescent lighting retrofits
475 Compact fluorescent light bulb installations
Three T5 light fixture upgrades in school gym and multi-purpose facilities
$ 34,400 grant funds spent on additional energy efficiency measures beyond lighting
- Brevig Mission – installed two EK3 low-mass boilers in BSSD teacher housing and
storage building – all in-kind labor and logistics.
- Chignik Lake: Air sealing and an addition of R-30 attic insulation in SUB building
- Nikolski: Will contribute primary materials for Nikolski Community Center heat recovery
project.
- Pedro Bay: Completed attic air sealing and insulation measures in the PHOB Tribal
Building.
- 18 programmable thermostats installed region wide for an additional 5-10% in heating
fuel savings.
Acquired $ 51,375.39 in matching grant resources – extending the capacity of AEA grant
funding by 22.6%
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Alaska Building Science Network - Village End Use Energy Efficiency Measures Program – ’07-‘08 Final Reports West Region
Grant funds payback and fuel saving measures
Savings from heating measures and corresponding grant expenditures are not included in
payback calculations. Our region-wide payback estimate of 2.37 years* on total grant funds
includes spending for all lighting and heating measures, but it does not account for any
savings from the heating measures. In other words, our payback figures absorb the full cost
of fuel savings measures, but do not reflect any savings resulting from them. The heating
measures will result in measurable fuel savings, which we currently do not have data to
calculate. If it was possible to calculate fuel savings from the heating measures we are
confident it would measurably reduce payback time on total grant funds.
Region-Wide Lighting Upgrade Summary
For all linear fluorescent, compact fluorescent bulb and T5 lighting retrofits and
installations:
Pre-retrofit energy use for all lighting: 152.93 kW
Post-retrofit energy use for all lighting: 76.91 kW
Energy savings from all lighting upgrades: 76.02 kW
Pre-retrofit to post retrofit energy reduction: 50 %
Estimated Annual Savings Range:
Hours Per Day /
250 Days Per Year
Electrical
Savings
Avoided Diesel
Use (gallons)
Avoided
Diesel Costs
Payback
Est. (yrs)
4 Hours $ 54,601 6,589 $ 19,126 4.15
7 Hours $ 95,551 11,531 $ 33,471 2.37
10 Hours $ 136,501 16,473 $ 47,816 1.66
Total grant funds for all energy efficiency measures: $ 226,650
Simple mean payback (All grant funds, but accounting for lighting savings only) 2.37 Years
Additional Energy Efficiency Measures (Region-wide grant funding: $34,400)
After completing lighting measures with good payback, we dedicated remaining grant funds
to fuel saving measures and heating system energy efficiency. Our organizational focus in
energy efficiency and northern building science places us in the unique position of being able
to dovetail similar objectives from different projects providing a win-win benefit to the
VEUEEM grants. These and many other in-kind resources enabled us to go beyond the
originally conceived scope of work and substantially expand the capacity of these energy
efficiency projects.
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Alaska Building Science Network - Village End Use Energy Efficiency Measures Program – ’07-‘08 Final Reports West Region
Full Cost of Electricity '07-'08 Villages
$-
$0.20
$0.40
$0.60
$0.80
$1.00
$1.20
Brevig MissionChignik LakeFalse PassNikolskiPedro BayWhite MtnAEA Village End Use Energy Efficiency Progam '07-'08Cost/kWLegend:
--------- Village-wide average full cost of electricity = $0.73
--------- Nation-wide average full cost of electricity = $0.10
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Alaska Building Science Network - Village End Use Energy Efficiency Measures Program – ’07-‘08 Final Reports West Region
0.00
5.00
10.00
15.00
20.00
25.00
30.00
35.00
40.00
Kilowatts
Brevig MissionChignik LakeFalse PassNikolskiPedro BayWhite MtnAEA Village End Use Energy Efficiency Program '07-'08
Lighting Retrofit Energy Savings - Grant Wide
Pre-Retrofit Energy Use
Post-Retrofit Energy Use
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Alaska Building Science Network - Village End Use Energy Efficiency Measures Program – ’07-‘08 Final Reports West Region
0.000
0.500
1.000
1.500
2.000
2.500
3.000
3.500
4.000
KilowattsFalse PassPedro BayWhite MountainAEA Village End Use Energy Efficiency Program
'07-'08
T5 Gym & Common Area Lighting Upgrades
Pre-Retrofit Energy Use
Post Retrofit Energy Use
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Alaska Building Science Network - Village End Use Energy Efficiency Measures Program – ’07-‘08 Final Reports West Region
AEA LIGHTING RETROFIT PROJECT - Summary of Savings For '07 - '08 Grant Activities
With Building Use Estimates of 7 hrs / day, 250 days/year:
Electric Rates are full rates including fuel surcharges and excluding PCE deductions. Rates are current Small Commercial (1 -700 kWh),
acquired from rural utilities in late fall of 2008.
VILLAGES
Pre-retrofit
Energy Use
(watts)
Pre-retrofit
Energy
Use (KW)
Post-retrofit
Energy
Use
(watts)
Post-
retrofit
Energy
Use (KW)
Percent
Wattage
Reduction Pre
to Post retrofit
Energy Use
Savings
(watts)
Energy Use
Savings
(kW)
Lighting /
Building Use
(hrs/day)
Lighting /
Building Use
(days/yr)
Brevig Mission 33,643 33.64 14,506 14.51 57% 19,137 19.14 7 250
Chignik Lake 30,302 30.30 16,405 16.41 46% 13,897 13.90 7 250
False Pass 36,964 36.96 20,067 20.07 46% 16,897 16.90 7 250
Nikolski 4,902 4.90 2,321 2.32 53% 2,581 2.58 7 250
Pedro Bay 19,756 19.76 9,335 9.34 53% 10,421 10.42 7 250
White Mountain 27,364 27.36 14,276 14.28 48% 13,088 13.09 7 250
TOTALS 152,931 152.93 76,910 76.91 50% 76,021 76.02
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Alaska Building Science Network - Village End Use Energy Efficiency Measures Program – ’07-‘08 Final Reports West Region
AEA LIGHTING RETROFIT PROJECT - Summary of Savings For '07 - '08 Grant Activities $
37,775 Total Project Cost for NW/SW Villages
With Building Use Estimates of 7 hrs / day, 250 days/year: $
37,775 Total Project Cost for West Villages
VILLAGES
Annual
Savings
(kWh)
Electricity
Cost per
kWh
(without
PCE)
Fall 2008
Annual
Village-wide
savings
(dollars)
Utility Fuel
Usage
(kWh/gal)
from '07
AEA PCE
Report
Annual
Avoided
Fuel Oil
(gallons)
Diesel
Cost per
gallon
(from
'07 AEA,
PCE
Report)
Annual
Avoided Fuel
Costs
(dollars)
Total Project
Costs: All
grant
delivery,
labor,
materials,
shipping and,
disposal
costs
Simple
Payback
(yrs)
# of
Rural
Entities
Worked
With
# of
Buildings
Worked
In
# of
Teacher
Housing
Units
Worked
In
Est. # of
Maint.
Staff
Worked
With
Brevig
Mission 33,490 $ 0.53 $17,830 13.25 2,528 $1.88 $4,751.75 $37,775 2.12 4 11 7 6
Chignik Lake 24,320 $ 0.58 $14,144 8.99 2,705 $3.51 $9,495 $37,775 2.67 3 8 5 5
False Pass 29,570 $ 0.65 $19,309 11.62 2,545 $2.48 $6,311 $37,775 1.96 4 11 0 3
Nikolski 4,517 $ 0.65 $2,936 8.97 504 $3.33 $1,677 $37,775 12.87 3 2 1 4
Pedro Bay 18,237 $ 0.91 $16,595 13.79 1,322 $4.05 $5,356 $37,775 2.28 3 5 3 6
White
Mountain 22,904 $ 1.08 $24,736 11.88 1,928 $3.05 $5,880 $37,775 1.53 3 11 0 6
TOTALS 133,037 $95,551 11,531 $18.30 $33,471 $226,650 20 48 16 30
AVE: $ 0.73
$95,551 Projected Annual Savings (dollars) for 6, '07-'08 -
Villages
$226,650 Total Grant Funds For All 6, '07-'08 Villages
Simple Payback: 2.37 years to payback entire grant @ 7 hrs/day & 250 hrs/yr
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Alaska Building Science Network - Village End Use Energy Efficiency Measures Program – ’07-‘08 Final Reports West Region
AEA LIGHTING RETROFIT PROJECT - Summary of Savings For '07 - '08 Grant Activities
With Building Use Estimates of 7 hrs / day, 250 days/year:
VILLAGES
# of 4'
Fluorescent
light
Fixtures
Retrofitted
# of
CFLS
Installed
# of Gym /
Multi-
purpose
Bldgs
Upgraded
with T5s
Total
Project Cost
less CFL,
T5 &
Additional
Measures
Costs
Cost /
Fixture in
materials,
shipping,
village
labor, ABSN
Admin
(Total
project cost
less T5, cfl
and
additional
measures
costs).
T5
(Materials
and
shipping
Cost)
Additional
Measures
Beyond
Lighting
(Materials
and Labor
Cost)
Low-Mass
Boiler
training
and
instalation
for SD
Staff
Provided
energy
efficiency
boiler
training
for #
village
maint staff
#
Programmable
T-Stats installed
Total In Kind
Contribu-tions
from all Village
Entities
Brevig Mission 180 131 0 $9,000 1 10 $14,359.47
Chignik Lake 240 85 0 $6,000 2 $ 4,768.00
False Pass 275 71 1 $1,698 $900 2 $10,369.00
Nikolski 27 29 0 $11,500 $12,564.00
Pedro Bay 81 142 1 $2,954 $ 6,000 1 $6,764.92
White
Mountain 235 17 1 $900 $ 1,000 1 3 $2,550.00
TOTALS 1038 475 3 $182,901 $ 176 $5,552 $34,400 0 2 18 $51,375.39
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Alaska Building Science Network - Village End Use Energy Efficiency Measures Program – ’07-‘08 Final Reports West Region
Lighting Strategy and Savings Estimates
During initial site visits we completed lighting assessments including quantity, locations, and
wattage of existing fixtures. From initial assessments and site visits we designed lighting
plans and applied various lamp and ballast combinations along with de -lamping strategies to
achieve a balance of optimal energy efficiency and ample light levels for the activity at hand.
From initial assessments and our lighting retrofit plans we determined pre and post energy
use by building, village entity, village-wide and region-wide. With a known energy use, we
could estimate energy and cost savings based on a predicted building and lighting use
pattern. Since this information is extremely variable and would require separate grant funds
to determine individual building use for these projects, we are reporting our saving estimates
based on 250 days / year use and a 3-tier range of 4, 7, and 10 hours/day. For the purposes
of these final reports we will focus on a mean lighting use of 7 hours/day. This generic use
time is intended to average the use pattern of all buildings in our projects. Individual
buildings and individual room spaces will have a wide range of use patterns. The actual
savings and payback resulting from these projects we assume will fall somewhere within our
range of 4 to 10 hours a day. To ground truth our 7 hour/day average run time we sampled
run time data on lighting with building owners and occupants. These estimates varied largely
even for the same building, but local run time estimates generally came in close (on one side
or the other) to our 7 hour/day average. For the purposes of these reports we used full
electricity rates including fuel surcharges and excluding PCE deductions. Rates are current
small commercial (1-700 kWh), acquired from rural utilities in late fall of 2008.
The Oil Price Spike of 2008
With most village power generated through burning diesel fuel, the global price of o il has a
profound effect on rural Alaska electricity costs. The VEUEEM grant projects covered in
these final reports occurred during the highest global oil price spike in history. As a result,
many villages had to endure the highest fuel and electric costs in their history. In the summer
of 2008 the global price of oil spiked at over $150/barrel during the time window when most
village entities had to order their bulk fuel for the winter of ’08-‘09. This resulted in crippling
local village fuel costs. With most village power generated through burning diesel fuel, the oil
price spike caused a corresponding spike in rural electricity costs through huge increases in
fuel surcharges. These extreme costs of fuel and electricity in most of rural Alaska laste d
through the winter of ’08 –’09, well past when the price of gas and oil related commodities
dropped in the rest of road-connected America.
With the price of oil gradually returning to more normal levels in late 2008, and maintaining
lower most likely through the spring and into the summer of 2009, rural utilities will be able to
purchase their bulk fuel at markedly decreased prices compared with 2008. With this, rural
costs of electricity for many villages will drop off and stabilize at lower levels. For these final
reports, ABSN used electricity rates from late 2008, at the end of ’07-’08 projects which
corresponded with peak electrical costs. However, average fuel prices for this time frame
were not available from the AEA PCE program that tracks th ese rates. ABSN therefore used
the latest average fuel price data available in March ’09, which was from the FY07 PCE
Report (fuel pricing from summer 2006). Comparative avoided diesel costs shown in these
reports reflect those rates, which are likely closer to current trends. In this discussion, it
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Alaska Building Science Network - Village End Use Energy Efficiency Measures Program – ’07-‘08 Final Reports West Region
should be noted that long-term savings and payback patterns from VEUEEM lighting and
other energy efficiency measures will correspond directly with fluctuations in the price of oil.
Also of note on this topic, the price of village electricity and fuel are not the only elements
effected by the global price of oil. The price of many materials and supplies associated with
these projects rose considerably with the price of oil. Nearly all grant expenses in
purchasing, shipping and travel increased in cost – thereby raising the cost of lighting
measures and decreasing the number of measures beyond lighting that could be
accomplished within grant budgets when compared to Phase I work completed in 2006.
Savings Estimates (Cont’d)
When considering savings estimates, it should be noted that for all practical purposes the
only thing we can determine with reasonable accuracy is pre and post energy use. When it
comes to savings, there are other questions that arise i ncluding: The volatile, global price of
oil, and who actually sees the savings? If the energy use is reduced in a village, the required
operating costs of a village utility must still be met. Utility rates will continue to increase to
meet operating costs. Where savings occur, some will be to the State of Alaska in reduced
PCE payments, and some will be to the electricity rate -payer. There is also the question of
load verses capacity of a given generation system. In some cases where a generation
system’s capacity is over-extended, dropping the electrical load will be favorable for that
utility as they may be spared the costs of generator replacement or overhaul. In other cases,
if a system is somewhat oversized for the load already, an additional drop in electrical use
may not be favorable to the utility or school. The optimal operating cycle of a given generator
will consume a set amount of fuel over time. Reduction in electrical load may not translate
directly to how much fuel is burned in a given generator.
Although these factors should be understood, the pressures of ever-increasing fuel costs,
coupled with the facts of life in rural Alaska, necessitate the pursuit of energy efficiency
programs wherever possible. Also, the trend of improved d iesel generation technology, and
the ability to tailor power generation levels to match load cycles, means that projects
dedicated to overall load reduction are critical. This trend is another practical reason to
pursue energy efficiency as an important principle.
We at ABSN are very pleased with the results of our work in association with these projects
and are happy to be contributing toward energy efficiency cost savings for rural Alaska.
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Alaska Building Science Network - Village End Use Energy Efficiency Measures Program – ’07-‘08 Final Reports West Region
Savings and Payback Projections '07-'08 Villages
Community
Annual
Electrical
Savings
Projections
Total Project
Costs
Simple
Payback (yrs)
Brevig Mission $ 17,830 $37,775 2.12
Chignik Lake $ 14,144 $37,775 2.67
False Pass $ 19,309 $37,775 1.96
Nikolski $ 2,936 $37,775 12.87
Pedro Bay $ 16,595 $37,775 2.28
White Mountain $ 24,736 $37,775 1.53
TOTALS: $95,551 $226,650 2.37
Based on hours of operation: 7 hrs/day for 250 days/year
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Alaska Building Science Network - Village End Use Energy Efficiency Measures Program – ’07-‘08 Final Reports West Region
Savings and Payback Projections '07-'08 Villages
Community
Annual
Electrical
Savings
Projections
Total Project
Costs
Simple
Payback (yrs)
Brevig Mission $ 10,189 $37,775 3.71
Chignik Lake $ 8,082 $37,775 4.67
False Pass $ 11,034 $37,775 3.42
Nikolski $ 1,678 $37,775 22.52
Pedro Bay $ 9,483 $37,775 3.98
White Mountain $ 14,135 $37,775 2.67
TOTALS: $54,601 $226,650 4.15
Based on hours of operation: 4 hrs/day for 250 days/year
Savings and Payback Projections '07-'08 Villages
Community
Annual
Electrical
Savings
Projections
Total Project
Costs
Simple
Payback (yrs)
Brevig Mission $ 25,471 $37,775 1.48
Chignik Lake $ 20,206 $37,775 1.87
False Pass $ 27,584 $37,775 1.37
Nikolski $ 4,194 $37,775 9.01
Pedro Bay $ 23,708 $37,775 1.59
White Mountain $ 35,338 $37,775 1.07
TOTALS: $136,501 $226,650 1.66
Based on hours of operation: 10 hrs/day for 250 days/year
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Alaska Building Science Network - Village End Use Energy Efficiency Measures Program – ’07-‘08 Final Reports West Region
Notes on Budget and Grant Spending
Our objective is to spend grant funds evenly between villages to the greatest extent
possible. To simplify accounting and purchasing large lighting orders are evenly split
among villages and among VEUEEM grants. In financial reporting, grant expenditures
are noted by village, and by the following budget categories: Field Management, Project
Management, Travel Expenses, Materials, and Village Labor. Each village budget totals
$37,775, which is the original total grant amount of $226,650 divided by six villages. As
we get into spending for measures beyond lighting we select projects based on cost -
benefit of the least project expense verses the most favorable savings and payback.
Additionally projects are selected for measures beyond lighting according to local
participation and initiative on the part of village entities to accomplish and enable projects
through matching funds for labor or materials. To the degree necessary, village budgets
for measures beyond lighting within the region were pooled to cover these measures.
Disposing and Recycling Old Lamps and Ballasts
ABSN’s goal is to ensure that all old and unused lamps and ballasts are shipped out of
the villages to Anchorage for proper disposal and recycling. In cases where the existing
34-watt T-12 lamps were fairly new, village building owners sometimes prefer to keep the
materials and pass them along for continued use. In most cases, lamps are at or near the
end of their useful lifespan and are no longer putting out optimum light. All fluorescent
lamps contain mercury and as such should not be disposed of in landfills. . As part of ’05
– ’06 projects, ABSN developed a system of packing and shipping used lamps and old
magnetic ballasts from the villages to Total Reclaim Inc. of Anchorage - the largest
recycler of fluorescent lamps in the state. From Anchorage the lamps and ballasts travel
by container ship to lower 48 recycling facilities. The mercury from lamps is reclaimed,
and the ballasts are recycled for their materials.
For shipping used lamps and ballasts from most villages to regional hubs we arranged
free back-haul service - generously provided by Alaska Transportation Service (ATS).
From the hub communities back to Anchorage, Northern Air Cargo provide s backhaul at
slightly reduced rates for this program. Used lamps and non-PCB ballasts travel as
general freight in properly sealed containers. Used lamps are categorized as non -
hazardous universal waste.
Packing used lamps for recycling A village shipment of used lamps
and ballasts
Bring used lamps to the air strip
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Alaska Building Science Network - Village End Use Energy Efficiency Measures Program – ’07-‘08 Final Reports West Region
8ft, T-12 lamps prepared for
recycling.
8ft lamp recycling container . 8ft lamps prepared for shipping.
PCB Ballast Disposal
Ballasts manufactured during or before 1979 are considered to contain PCBs, and are classified
hazardous waste. In some villages where PCB ballasts are found, they must be dealt with under
OSHA, EPA, and DOT regulations for proper removal and transportation. In the Nothwest -
Southwest region, Brevig Mission and White Mountain had some PCB ballasts to remove and dispose
of in order to complete lighting retrofits in all community buildings. As part of ’05 – ’06 projects,
ABSN developed a PCB ballast removal and disposal method for village maintenance staff within EPA
and DOT compliance and approved by the Alaska State OSHA office. Proper removal procedures
were facilitated by ABSN, with the village building owner and their maintenance staff taking
responsibility for proper removal - as the generator of the hazardous waste.
Double checking ballasts for PCBs DOT approved haz-mat container of PCB ballasts
ready for shipment
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Alaska Building Science Network - Village End Use Energy Efficiency Measures Program – ’07-‘08 Final Reports West Region
The following 6 village reports detail lighting
and additional measures undertaken
in each of our Northwest / Southwest region villages:
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Alaska Building Science Network - Village End Use Energy Efficiency Measures Program – ’07-‘08 Final Reports West Region
ELECTRONIC APPENDICES
Village End Use Energy Efficiency Measures Program ’07 – ‘08
West Region Final Reports
_______________________________________________________________
Electronic appendixes associated with these projects are provided as part of
our final reports including:
Cover page and Final Report Executive Summary, file name:
(Cover_ExecSummary_NW.SW_FinalReport07-08.doc)
Regional final reporting summary data, charts and calculations spreadsheets:
(SummaryFinalReportData_NW.SW_'07-'08.xls)
Final reports for each village in a folder titled:
(Final_ReportsVEUEEM’07-‘08_NW.SW)
Pre-Post retrofit spreadsheets for each village, in a folder titled:
(TallySheets_NW.SW_'07-'08_Final_Reports)
Contact information for all village contacts, file name:
(Contacts_NW.SW_VEUEEM'07-'08.xls)
VEUEEM ’07 –’08 ACCESS Database