HomeMy WebLinkAboutCEC REF VIII Appendicies Crater Lake
Reconnaissance
Report
9/19/2014 Cordova Electric Cooperative - Clay Koplin, PE
This report summarizes a preliminary feasibility assessment of Crater Lake near
Cordova, Alaska for a community hydroelectric supply and water storage project.
Crater Lake Reconnaissance Report
Page 1
Table of Contents
TABLE OF CONTENTS .................................................................................................................................. 1
INTRODUCTION ........................................................................................................................................... 2
REPORT ELEMENTS ...................................................................................................................................... 3
Proposed Energy Resource ................................................................................................................................................. 3
Existing Energy System ........................................................................................................................................................ 3
Proposed System Design ..................................................................................................................................................... 5
Proposed System Costs ........................................................................................................................................................ 5
Project Benefits ..................................................................................................................................................................... 7
Energy Purchase/Sale ......................................................................................................................................................... 8
Land Ownership .................................................................................................................................................................... 8
Permits .................................................................................................................................................................................... 8
Environmental ........................................................................................................................................................................ 9
Analysis and Recommendations ......................................................................................................................................... 9
APPENDIX ................................................................................................................................................. 10
Exhibit A – Crater Lake Site Map and Conceptual Plan View
Exhibit B – Crater Lake Watershed
Exhibit C – Crater Lake Energy Estimate
Exhibit D – CEC kW and kWh Peak Loads 2011-2014
Exhibit E – CEC Tariff Rates
Exhibit F - Photos
Crater Lake Reconnaissance Report
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Crater Lake Reconnaissance
Report
H Y D R O E L E C T R I C A N D W A T E R S T OR A G E P R E -F E A S IB I L I T Y
I N T R O D U C T I O N
NEED: Over the past decade the community of Cordova, Alaska has experienced a growing demand for
electricity and water. The growth is not only contributed to Cordova often ranking in the top 10 seafood
delivery ports in the US by both volume and dollar value but the associated businesses, infrastructure and
employees as well as increased tourism and population rebound. In 2002, Cordova Electric Cooperative
(CEC) completed construction of the 6,000 kW Power Creek Hydroelectric Project. In 2011, CEC completed
reconstruction of the 1,250 kW Humpback Creek Hydroelectric Project. The peak electrical demands for
Cordova now exceed 9,000 kW, and the annual electrical supply averages 65% hydroelectric and 35%
diesel generation. Both hydro projects are run-of-river and cannot store excess water for winter use. The
City of Cordova municipal water supply is similarly inadequate to provide peak and annual water use, often
relying on an expensive pumping and filtering plant to deliver water from Eyak Lake.
OPPORTUNITY: Crater Lake has been considered as a water and hydroelectric energy source for Cordova in
various studies including an early 1960 design for dam storage (Summit Lake Hydro-Electric Plant, Stan
Sporseen, PE, North Pacific Consultants, Portland, OR and Anchorage, AK). A more recent and comprehensive
study was performed by Merrell & Associates/Black & Veatch – January 1980, “Cordova Water Supply
Feasibility Study” of which CEC has a copy.
As the City of Cordova contemplated an expansion or upgrade of an existing water catchment from the
Crater Lake outflow at elevation 200’, CEC evaluated the watershed, elevation, and land ownership of the
Crater Lake basin, and determined that a hydroelectric project on the site was likely feasible. On June 30th
of 2014, the CEC Board of Directors approved a $100,000 internal reconnaissance study to determine the
pre-feasibility of Crater Lake for hydroelectric and community water storage and supply.
FINDINGS: This report documents the results of this study, and recommends a feasibility study to develop a
cost-benefit analysis to determine whether or not the site warrants design and construction of a combined
energy and water storage project.
Crater Lake Reconnaissance Report
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REPORT ELEMENTS
P R O P O S E D E N E RG Y R E S O U R C E
The proposed Crater Lake power and water project would consist of a small (20’ x 30’) concrete dam at
elevation 1560’ , a 3800’ long steel penstock, and a tidewater power plant of 500 – 2000 kW; Appendix
Exhibit A, Crater Lake Site Map and Conceptual Plan View. From a careful tracement of an ARCGIS
topographic map of the Crater Lake basin, the watershed was identified as approximately 167 acres of
drainage per Appendix Exhibit B, Crater Lake Watershed. Cordova averages 148” of annual rainfall
(http://www.usclimatedata.com/climate/cordova/alaska/united-states/usak0061 ). The outflow elevation of
Crater Lake is at 1560’ of elevation. From these parameters, with an estimated accuracy of +/- 10%, Crater
Lake is estimated to produce 2,000,000 kWh annually, with an annual water resource of 540,000,000
gallons per Appendix C, Crater Lake Energy Estimate. The generation unit(s) can be sized to assist CEC with
meeting up to 16% of peak (kW) demands, and 7% of annual (kWh) use to meet the growing demand for
electricity in Cordova and offset up to 30% of existing use of diesel fuel. The City of Cordova presently
delivers approximately 350,000,000 gallons of potable water to the community, of which Crater Lake could
provide a more significant amount of annual water needs.
E X I S T I N G E N E RG Y S Y S T EM
BASIC CONFIGURATION: CEC currently operates three power generation facilities and over 70 miles of
underground and submarine power lines serving 1500 meters in Cordova. The three power plants, Orca
Power Plant (diesel), Humpback Creek Hydro Plant (HBC – hydro), and Power Creek Hydro Plant (PC –
hydro) have the following generation assets as itemized in Table 1 Below:
TABLE 1 – CEC ELECTRIC GENERATORS AND BOILERS
Plant Generator
Make/Model
kW Rating Age (years) Efficiency
(kWh/gal)* or cfs
rating
Operating Hours to
Date
Orca Plant (diesel) Electromotive Diesel
(EMD) 710-20
4000 7 12-15.5 kWh/gal 8471
Orca Plant (diesel) Electromotive Diesel
(EMD) 645-20
2500 36 12-14 kWh/gal 117839
Orca Plant (diesel) Fairbanks-Morse
(FM) OP 38TD81/8
2400 30 12-13.5kWh/gal 75681
Orca Plant (diesel) Caterpillar 3516 1125 30* 13.5-15 kWh/gal 35726*
Orca Plant (diesel) Caterpillar 3516 1125 30* 13.5-15 kWh/gal 40654*
Orca Plant (diesel) Boiler #1 PV905A 0.394 MMBTU/hr 30 150000 estimated
Orca Plant (diesel) Boiler #2 AFG 0.394 MMBTU/hr 30 150000 estimated
HBC (hydro) Francis –
Dependable Turbine
500 25 50 cfs 8056 **
HBC (hydro) Francis –
Dependable Turbine
500 25 50 cfs 11490 **
HBC (hydro) Turgo – Dependable
Turbines
250 25 25 cfs 20604 **
PC (hydro) Turgo - Gilkes 3000 15 160 cfs 38012
PC (hydro) Turgo - Gilkes 3000 15 160 cfs 44404
* 1984 vintage Cats were purchased used in 1999 with an additional assumed 60,000 hours of use at that time
** Since July 2011 operation following turbine and generator rebuilds
Crater Lake Reconnaissance Report
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E X I S T I N G E N E RG Y S Y S T E M ( C ON TI N U E D … . )
CAPITAL AND REPLACEMENT COSTS: Capital and replacement costs vary widely by project. CEC endeavors
to insure plants at their replacement value, and current insured plant values are as follows:
Orca Diesel Power Plant (tanks, building equipment, etc) . . . $ 15,284,105
Humpback Creek Hydro Project (building, intake, turbines, xfmr, etc.)* . . $ 23,886,000
Power Creek Hydro Project (building, intake, turbines, xfmr, etc.)* . . $ 19,063,500
*Note: Bridges at HBC and PC are excluded from insurance binders
ANNUAL O&M COST AND SCHEDULE: Annual O&M costs, by plant, are as follows:
TABLE 2 – 2013 GENERATION PLANT ANNUAL O & M COSTS
PLANT OPERATIONS MAINTENANCE TOTAL
Orca Diesel Power Plant $359,522 $602,609 $962,131
Humpback Creek Hydro $144,736 $30,595 $175,331
Power Creek Hydro $378,303 $251,242 $629,545
TOTAL $882,561 $884,446 $1,767,007
Annual O&M schedules are determined by engine hours per manufacturer’s recommendations for the diesel
generators. In general, diesel plant maintenance is during late fall when system electrical loads are in the
3,000 – 4,000 kW range and hydro plants provide 100% of the system energy. The general O&M schedule
for hydro maintenance is in April for Power Creek when the plant output is at an annual minimum and loss of
diesel fuel savings is minimized. The general O&M schedule for Humpback Creek is June, when Power Creek
can provide 100% of system power needs before peak demands increase in late June.
ANNUAL FUEL CONSUMPTION AND FUEL PRICE: The three year average fuel consumption for 2011-2013
was 781,032 gallons, 827,976 gallons, and 711,526 gallons respectively. Average price per gallon for
each year was $3.58 for 2011, $3.82 for 2012, and $3.58 for 2013. Fuel costs were $2,796,095 for
2011, $3,162,868 for 2012, and $2,547,263 for 2013.
LOAD INFORMATION: CEC has a highly variable load and kWh use profile. In general, residential, street
light, and general electrical service rate classes are reducing their consumption per meter each year, with a
record low 414 kWh per month per meter residential use in 2013. For these rate classes, and the large
power rate class, monthly use is fairly consistent throughout the year. The processor (industrial) rate class has
had a dramatic increase in summer peak system demands during the months of June, July, and August,
accompanied by a modest increase in kWh energy use. The greatest demands occur during July and August.
CEC set a new record peak demand of 9,400 kW in August 2014, with record kWh sales of over 4,000,000
kWh for July 2014. Annual sales have increased from 25,000,000 kWh annually to 28,000,000 kWh in
2013. A summary of August 2011 – August 2014 kWh use and kW peak demands by month are included in
the Appendix Exhibit D.
Crater Lake Reconnaissance Report
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PLANS FOR SYSTEM UPGRADES: In 2011, CEC converted the last overhead power distribution lines to
underground. The Orca Power Plant was built in 1984, Humpback Creek was built in 1991 with significant
rebuild in 2011, and Power Creek was built in 2002. The relatively new infrastructure is in good operating
condition with decades of expected life. A new distribution feeder was built to accommodate load growth
and concentration in the industrial core of Cordova. Including standard diesel plant engine rebuilds and
regular replacements, CEC does not anticipate significant system upgrades except for a substation upgrade,
additional hydro development, and conservation and efficiency initiatives to offset and, ultimately, eliminate
diesel fuel use in Cordova.
RESIDENTIAL AND COMMERCIAL RATES: See Appendix Exhibit E, CEC Tariff Rates. Note that 2013 bus cost
of hydropower was only 16.9% of the bus cost of diesel power.
AVOIDED COST OF ENERGY: The fuel cost of energy from diesel generation is the dominating avoided cost
of power with a hydro plant. The estimated Crater Lake avoided fuel cost for diesel generation at the
current fuel price is $527,246. However, the variable costs of diesel maintenance, lube oil, fuel and oil filters,
engine rebuilds, and higher general O&M costs are all additional avoided costs.
PRO P O S E D S Y S TE M D E S IG N
The basic system design proposal for Crater Lake is a conventional dam-penstock-pelton wheel high head
hydroelectric project. The first tier of value resides in a design that fully utilizes the available water to
directly offset the use of diesel fuel and delivers it to the City of Cordova municipal water system after the
energy has been extracted. A second layer of value could result from designing the project to control
Cordova system frequency to liberate 500 kW of hydroelectric capacity at the Power Creek Project and
optimize diesel plant efficiency by providing spinning reserve with Crater Lake. System frequency control
and the complex dispatch of both energy and water to balance an electric utility and a water utility’s
demands will require robust modeling and system analysis. For purposes of reconnaissance, the effort was
directed at assessing the energy value of the Crater Lake project as a simple storage and delivery project to
develop a reasonable cost-benefit analysis to determine whether a detailed feasibility study is warranted.
The proposed design for these purposes is the dam, penstock, and turbine power plant configuration of
Appendix Exhibit A.
DAM: A small concrete dam would raise the lake elevation. The 22 acre surface of the lake could increase to
approximately 28 acres or more, resulting in 400 acre-feet of storage, or approximately ¼ of the annual
water resource or 500,000 kWh of storage. Field reconnaissance indicates there are additional opportunities
to expand the storage volume of the lake by building a larger dam or drawing the lake down on a seasonal
basis pending regulatory restrictions and other stakeholder constraints. The dam will be one of the two most
significant cost elements of the project.
PENSTOCK: A 3800’ (plan view, actual would be somewhat longer) penstock will present one of the greatest
project challenges. The penstock can follow the stream canyon with multiple angles and thrust blocks where
suitable ground support can be contrived. An alternate route would embed the penstock in a talus slope for
avalanche protection and support and would limit the penstock route to several very slight bends for
improved hydraulic performance and reduced thrust block requirements. Alternatives could include a lake tap
option, a partial lake tap option, or other conveyance means.
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TURBINE: The 2.42 cfs average stream flow results in an average kW output of 236 kW. However, low
winter flows and fall flood events result in widely varying stream flows which would likely result in water
spilling if the generator is sized to 250 kW or less. A 750 kW Pelton wheel generator would allow for use as
a summer peaking plant when the current 9,400 kW peak demands exceed the combined 7,250 kW of
existing hydro capacity in Cordova. A 750 kW Pelton would allow a +/- 300 kW of spinning reserve
operating range around a 375 kW operating midpoint for sudden system load fluctuations.
POWER PLANT: The power plant would be pre-fabricated off site as a modular plant that could be installed
on a custom foundation built in Cordova to accommodate it. The dam, penstock, and power plant could be
designed to facilitate construction and installation by local contractors if capabilities and availability suit
construction design and schedule. Local contractors can sometimes be more flexible and avoid costly
mobilization, demobilization, and standby costs when weather or other delays occur. On the other hand, local
contractors can lack skills or capabilities essential to the quality and execution of the project construction.
P R O P O S E D S Y S TE M C O S T S
Project costs, based on historical Cordova construction costs, are anticipated to range from $5,000,000 to
$10,000,000 for the proposed conventional dam, penstock, and Pelton wheel design. Additional project cost
for a second 750 kW Pelton wheel for peaking and associated increases in switchgear, plant footprint, and
penstock size are anticipated to add an additional $1,000,000 to $3,000,000 to project cost. Frequency
control for providing system spinning reserve and time error correction are estimated to add an additional
$1,000,000 to $3,000,000 for modeling, design, custom switchgear and turbine-generator-flywheel design.
Cost estimates to date have been more qualitative than quantitative, and have considered the following cost
elements;
FEASIBILITY STUDY: A feasibility study for a conventional hydro project is anticipated to cost between
$50,000 and $75,000 based upon rough order of magnitude (ROM) estimates from 3 different engineering
firms. The deliverables for the feasibility study will include conceptual (20%) design, and an engineering
cost/benefit analysis including lifecycle costs and net present value.
ENGINEERING DESIGN: Engineering and Design are anticipated to range from $500,000 (conventional) to
$1,000,000 (integrated system frequency control) and include field engineering, 90% design, preparation of
construction and bid documents and bid support. Project management, construction engineering, and
geotechnical evaluation would not be included.
GEOTECHNICAL EVALUATION: A geotechnical evaluation including a minimum of two bore holes, one either
side of dam footprint and associated assessment report are estimated to cost $500,000.
PERMITTING: CEC anticipates that the project will be determined a non-jurisdictional FERC project. CEC has
solicited estimates for all necessary permits with the State of Alaska Office of Project Management and
Permitting (OPMP), and has received a quote for all necessary permits, which are not expected to exceed
$100,000. There is a State DNR Dam Safety Permitting Process with associated fees that are estimated to
cost $31,000 for a $10,000,000 project.
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CONSTRUCTION: Construction is estimated to range in cost from $4,000,000 to $8,000,000 including
concrete dam, steel penstock, power plant and tailrace. The design would favor methods and means
conducive to local contractors to minimize mobilization, demobilization, and standby costs and utilize locally
available batch plants and construction resources where appropriate. The construction is anticipated to be
completed in one season.
PROJECT MANAGEMENT: The intention for project management is to use a combination of contract owners’
field representation and project management, and CEC project management and accounting staff. Project
Management is estimated to cost $200,000.
TRANSMISSION LINE: The preferred project site is located within 300’ of existing Humpback Creek project
transmission line which has capacity to deliver more than 2,000 kW of additional load. The power
transformer, pad, transmission line, and connection switch would be installed by CEC line crew force account
labor. Electrical transformer and distribution are estimated to cost less than $250,000.
LAND LEASES AND PURCHASES: CEC anticipates land leases not to exceed $25,000 annually.
O&M AND FUEL COSTS: This project is anticipated to provide a net reduction of O&M costs. The project is
anticipated to reduce fuel use costs as presented in the “Benefits” section below.
PROJECT FINANCING: CEC anticipates a blended project financing portfolio including City of Cordova cost
share for water storage and conveyance (dam and penstock), state and federal grant funds and financing,
conventional financing through CoBank and/or CFC, and/or financing by Chugach Alaska Corporation or
other project stakeholders.
P R O J E C T B E N E F IT S
The Crater Lake Power and Water Project offers the opportunity to provide community benefits that far
exceed the benefits of a conventional hydropower plant. The direct, indirect, and intangible benefits include:
Reduced operations and maintenance cost of diesel alternative
Reduced fuel cost and regulatory/permitting requirements for internal combustion plant
Stored community water supply to provide adequate annual and peak demands
Leverage 500kW of hydro from Power Creek project – 2,000,000 kWh of diesel base load offset
Improve CEC diesel plant efficiency from an average 13.6 kWh/gallon to 14.1 kWh/gallon or better
Improve water and energy security (with storage) for community or regional disasters
Provide local and tribal economic benefits through construction and lease agreements
Demonstrate hybrid diesel-hydro micro grid technology and demonstrate agile project management
Reduce environmental impacts and the risks of handling and storing diesel fuel
Reduce Nitrous Oxide, Sulfur Dioxide, Particulate, and Carbon Emissions by hundreds of tons per year
FUEL DISPLACEMENT: At current diesel fuel average price of $3.58 per gallon and average diesel plant
efficiency of 13.58 kWh/gallon, the project is anticipated to result in annual fuel savings of 147,275 gallons
or $527,246 annually.
Crater Lake Reconnaissance Report
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ANNUAL REVENUE: Since fuel costs are passed through to customers of the CEC system, the customers are
anticipated to appreciate a significant reduction in cost of power adjustment (COPA) for fuel. Base rates
would increase, if necessary, to amortize debt service on the project, which would offset, to some extent, the
fuel savings.
INTANGIBLE BENEFITS: The past development of hydropower in Cordova has positioned electric energy to
be more cost effective than diesel fuel. As a result, the Cordova commercial fish processing rate class has
invested tens of millions of dollars in shore-based processing that has resulted in sharp increase in State of
Alaska and City of Cordova raw fish tax revenues. Stored energy and water provide essential services for
community health and security. The benefits of a new, large volume, shared-cost water supply opportunity for
the City of Cordova may offset necessary maintenance and upgrades of aged infrastructure.
E N E R G Y P U R C H A S E / S A L E
The Crater Lake Power and Water Project would immediately sell all available power and water into the
existing CEC and City of Cordova systems. The 2,000,000 kWh resource would be strategically dispatched
to offset a portion of the 6,000,000 – 9,000,000 kWh of annual diesel generation. The extended benefits
of the capabilities of a frequency-control spinning reserve could result in an additional 2,000,000 kWh of
diesel offset through Power Creek base loading and diesel plant efficiency. CEC would be
owner/operator/retail seller of all energy produced by Crater Lake Power and Water project.
L A N D O W N E RS H I P
Crater Lake is bisected by a property line with The Eyak Corporation owning the north side, and State of
Alaska with City of Cordova reservation on the south side. The penstock route could cross The Eyak
Corporation, State of Alaska, City of Cordova, and Private (Orca Adventure Lodge) lands to a power plant
located on City of Cordova, Private, The Eyak Corporation lands or a combination thereof per Appendix
Exhibit A. CEC has met early and often with land owners and has enthusiastic support for the project from all
4 of them. CEC has executed MOUs to develop the project with The City of Cordova, The Eyak Corporation,
and The Native Village of Eyak. CEC has met with community members and businesses of various rate classes
and has met with no direct resistance or disapproval of the project, though recreational access has been a
frequent question or concern. Cordova is very supportive of hydroelectric projects in general, and a storage
project to offset winter diesel use in particular. The success of CEC’s two existing hydro projects has
contributed significantly to the strong community support for hydropower.
P E R M I T S
All permits necessary for the project have been identified, and long-lead permits have already been
received or are pending including Alaska DNR water rights and FERC non-jurisdictional determination.
Additional permits have been identified by OPMP with a quoted budgetary cost of $52,000 for OPMP
coordination, application, and processing of permits necessary for the project. There is a demonstrated
presence of breeding stocked Rainbow Trout in Crater Lake, and CEC is currently working with the local office
of Alaska Department of Fish and Game to assess the resource and necessary considerations for hydro
development. The permitting timeline is not anticipated to create a bottleneck for the project. CEC
anticipates executing an MOU with OPMP within 12 months if feasibility proves favorable. There are no
anticipated regulatory barriers.
Crater Lake Reconnaissance Report
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E N V I R O N M E N T A L
There are few known environmental barriers to the development of the Crater Lake Power and Water
project. Stocked Rainbow trout are a concern. A trail easement along the lakeshore would be inundated in
places. Early discussions indicate that relocating the trail will not be unduly difficult to administer or execute.
The project has an otherwise small footprint, with a small pipeline that may be partially or completely buried,
a small height concrete dam, and underground power lines.
A N A L Y S IS A N D R E C O M M E N D A T IO N S
CEC anticipates that it will prove feasible to develop Crater Lake as a combined hydropower and water
supply for the community of Cordova, and anticipates proceeding with a feasibility study to develop a
conceptual design and a cost-benefits analysis. It is recommended that the feasibility study consider
frequency control and the dispatch of water to the City of Cordova water supply to maximize the net present
value of the project and replace aging infrastructure or costly diesel fuel-based energy generation or use at
both utilities.
Crater Lake Reconnaissance Report
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APPENDIX
ExhibitAExhibit ACrater Lake Reconnaissance ReportSitMdCtlPlViSite Map and Conceptual Plan ViewSeptember 16, 2014
CRATERLATESITEMAPCRATER LATE SITE MAPOrcaLodgePower HouseCORDOVA Orca LodgePenstockDamProject BoundaryCRATER LAKECITY CENTERExisting Transmission/USGSCORDOVAC5Water Supply Line CorridorUSGS CORDOVA C‐5 QUADRANGLE
EXHIBIT BCRATERLAKECRATERCRATER LAKEWATERSHEDCRATER LAKE WATERSHED~167ACRES~ 167 ACRES
Crater Lake ROM Power Generation Estimate Values (units vary)Elevation 1560Precipitation (in) 148Watershed (acres) 167Annual Resource (Acre‐feet) ‐ 85% capture 1751Annual Resource (cubic feet) 76,261,218 Annual Resource (gallons) 570,473,566 Average Streamflow (Q, cfs) 2.418 Humpback Creek Elevation 160Humpback Creek kW/cfs 10Crater Lake / Humpback Creek Ratio 9.75Crater Lake kW/cfs 97.5Crater Lake Average kW 235.78 Annual Average kWh 2,065,408 Note: An independent assessment for ROM generation by an engineering firm estimated 2,250,000 kWh annual productionExhibit C ‐ Crater Lake Energy Estimate
Date kWh Sold KW Peak Date kWh Sold KW PeakAug‐11 3,066,102 6758 Mar‐13 1,640,298 4658Sep‐11 2,068,692 4667 Apr‐13 2,032,306 4205Oct‐11 1,418,199 3518 May‐13 2,176,962 4495Nov‐11 1,628,132 4562 Jun‐13 2,629,938 6631Dec‐11 1,865,154 4056 Jul‐13 3,651,519 7840Jan‐12 1,946,941 2928 Aug‐13 3,783,163 8396Feb‐12 1,792,022 3884 Sep‐13 2,075,300 4750Mar‐12 1,795,815 4533 Oct‐13 1,586,898 3378Apr‐12 1,824,633 3731 Nov‐13 1,689,405 3828May‐12 2,048,301 4313 Dec‐13 1,703,060 3663Jun‐12 2,439,076 6598 Jan‐14 1,554,991 3662Jul‐12 3,522,358 7360 Feb‐14 1,474,237 3444Aug‐12 2,886,570 7153 Mar‐14 1,626,098 3496Sep‐12 2,036,470 5084 Apr‐14 1,783,648 4173Oct‐12 1,684,246 3393 May‐14 1,986,747 4436Nov‐12 1,789,609 3758 Jun‐14 2,823,285 7422Dec‐12 1,847,452 3781 Jul‐14 4,007,454 8942Jan‐13 1,841,637 2798 Aug‐14 3,219,165 9385Feb‐13 1,691,507 3895EXHIBIT DCEC kW and kWh PEAK LOADS 2011‐2014
EXHIBIT F – PHOTOS
Picture 1 Crater Lake Panoramic East End Facing West 11‐5‐13
Picture 2 Crater Lake Outflow/Dam Site 11‐5‐13
Picture 3 Crater Lake East End Facing West 5‐17‐14
Picture 4 Crater Lake Facing West Toward Outflow 5‐17‐14
Picture 5 Crater Creek City Water Catchment El 200 6‐10‐14
Picture 6 Crater Creek @ Tidewater ‐ note 10' drop from culvert 6‐10‐14
Picture 7 Crater Lake Outflow Stream Gage/Dam Site 8‐23‐14
Picture 8 Crater Lake Outflow ‐ note deep channel and helicopter reference to picture 7 8‐23‐14
Picture 9 Crater Lake approaching steep grade facing west 8‐23‐14
Picture 10 Facing East toward lake outflow with back facing picture 9 8‐23‐14
Cordova Electric Cooperative
Strategic Plan (2024) & Operating Plan (2014-2015)
Adoption Date
Our Vision
Energy Independence for Cordova
Barb\Word\Board\Strategic Plan
Our Core Purpose
Produce and Distribute Electricity
Our Core Values
Cooperative | Sustainable | Reliable| Accountable | Affordable | Responsible
Ten-Year Goal (2024)
The CEC is 90% hydro self-sufficient, able to sell 100% of hydro power through the grid.
Vivid Description for Long-Term Goal:
Overall, meeting this goal translates to success in achieving several critical outcomes.
First, the CEC must be effectively meeting the needs of members (surveys).
CEC must strategically add hydro-based or alternative generation capacity to reduce energy costs
(value/number).
Second, CEC will be focused on debt reduction of $260,000 more per year than current debt
schedules. Within just a few years the financial health of CEC will improve substantially, foremost
with respect to debt load. Debt target: $7,500,000 by 1/1/2024
Third, the CEC ’s human resources infrastructure must be able to ke ep up with shifting workforce
demographics.
CEC and its many stakeholders will have successfully established, fostered and leveraged local,
regional and statewide relationships, with the outcome being that CEC is a strong candidate for
being tied into the statewide power grid.
Mid-Term Goal (2018-2019)
CEC to reduce existing debt to $12.5 million as of 1/1/19 from the current $17.5 million (as
of 1/1/14)
Vivid Description for Mid-Term Goal:
Meeting the goal is a function of focused external advocacy, and a strengthened ability of the CEC,
through partnerships, to secure outside funding to decrease CEC’s debt and improve sustainability.
CEC to pay down $260,000 per year more than debt schedules require
It is important to execute internal fiscal policy by controlling operating expenses. By concentrating
on internal management the CEC board is better able to grow the significant value CEC provides to
the membership.
Debt reduction should not preclude CEC from pursuing capital projects in pursuit of the 2024 goal.
LNG as an alternative fuel to diesel;
o Highlight mutual interest in LNG at the community & regional level
o Cultivate State and Federal Government Relations to support LNG if feasible
Short-Term Goals / Annual Operating Plan (2014)
Goals:
Conduct a feasibility study for Crater Lake Hydro Project as a basis for a cooperative
agreement with the City of Cordova (CEC)
Provide necessary support for development of Shepard Point Road
Develop a strategy for converting to LNG (Diesels)
Long-term strategy for Unit 7
No lost-time accidents (safety standard)
Establish a Long-term transition plan (personnel)
Conduct a follow-up survey of membership
Cordova Electric Cooperative
Strategic Plan (2024) & Operating Plan (2014-2015)
Adoption Date
Our Vision
Energy Independence for Cordova
Barb\Word\Board\Strategic Plan
o Develop metrics that allow Board and CEO to determine CEC success and
opportunities for improvement
Board and leadership staff instill a Culture of Evaluation and Performance in the Board-
CEO partnership
o Includes Annual Board Self-Assessment and a structured process for enabling the
full board to effectively evaluate the CEO and provide solid direction
(some may move to mid-term)Implement Member Outreach Plan/Communication
Strategy
o Annual Meeting Communication
o Member Appreciation Event During Summer 2014
o Revamp Energy Efficiency Program
Evaluate LNG to reduce diesel fuel use/member cost
Manage budget to eliminate short term debt by 4/2015 with 12/2014 as a “stretch” goal.
(some may move to mid-term goals) Have in place a formal, recognized Sustainable
Energy Coalition for LNG economies of scale evaluation and development
Crater Lake Firms Listing 1-7-13
Hydro & Municipal Water Capable Engineering Firms Listing
December 2013
Heather Williams
MWH Americas, Inc.
1835 S Bragaw St, Suite 350
Anchorage, AK 99508
907-266-1165 direct
907-248-8884 fax
Kirby Gilbert
MWH Americas, Inc.
Kirby.gilbert@mwhglobal.com
c.206-650-5406
Morton D. McMillen, P.E.
Chief Engineer
McMillen LLC
1401 Shoreline Drive
Boise Idaho 83702
p 208.342.4214 x301 | c 208.830.1394
morton.mcmillen@mcmillen-llc.com
John K. Magee, P.E., F.SAME Group
Manager – Industrial Projects R&M
CONSULTANTS, INC. | 9101 Vanguard
Drive | Anchorage, Alaska 99507
907.646.9656 direct | 907.748.7781 mobile |
907.522.3403 fax
jmagee@rmconsult.com
(may partner with Hatch, a hydro firm)
Ken Fonnesbeck
Mead & Hunt
Mobile: 425-417-4803
ken.fonnesbeck@meadhunt.com |
www.meadhunt.com
Jeremiah (Jay) L. Maher
Senior Manager - Environmental and
Regulatory Group
Office: 207.416.1239
Cell: 724.674.6145
Jay.Maher@KleinschmidtUSA.com
www.KleinschmidtUSA.com
Paul Berkshire &
Jaci Mellott
Becky Morris
Paul Berkshire, P.E.
Project Lead/Senior Engineer
HDR
2525 C St., Suite 305
Anchorage, AK 99503
D 907.360.1015
Jaci.Mellott@hdrinc.com
Becky.Morris@hdrinc.com
paul.berkshire@hdrinc.com
hdrinc.com/follow-us
Progress Report for AEA Grant HBC November10.docx
Progress Report for AEA Grant
Grantee: Cordova Electric Cooperative, Inc.
Project Name: Humpback Creek Hydroelectric Construction
Grant #2195386
Period of Report: November 1, 2010 to November 30, 2010
Prepared: December 7, 2010
Project Activities Completed:
November was a productive month, and while winter weather and low daylight hours impacted
productivity, progress was good, though Thanksgiving week and weekend consumed a week.
With the bentonite in the creek bed contained between the two sheet pile walls, the contractor
was able to fully clean and expose rock for geotechnical inspections and confirmation of the
grouting plan. Rock along the tailrace was excavated, and electrical, tunnel walkway, and other
inside work advance significantly through the month. Bridge modifications including adding
structural support, removing the suspension cable, and jacking and shimming the penstock to
the proper camber across the bridge were also completed this month. Approximately 1/3 of
the new penstock supports were added to the penstock, but the concrete foundations will need
to be added next summer, along with the balance of supports. This work will be accomplished
with the penstock full and the project in operation. Penstock coating and dresser coupling
maintenance work will commence once the supports are in place next summer.
Please note attached pictures reflecting the activities outlined above. They are taken from daily
reports and are in chronological order. Daily reports are available upon request.
Based on current progress due the project is now scheduled to be in operation by January 2011.
Existing or Potential Problems:
There are currently no additional problems anticipated. The creek bed has been exposed, and
all project activities, excavations, and foundation work are clearly defined.
Activities Targeted for Next Reporting Period:
December activities include pressure testing the grout holes, pressure grouting (curtain
grouting) the grout holes, forming and pouring the diversion dam structure. High voltage
electrical and fiber options will be installed, and the majority (95%) of inside electrical work will
be completed.
Progress Report for AEA Grant HBC November10.docx
The Transformer Vault
Cleaning Rock at the Diversion Site – Note Hard Rock
Lyle Darbying External Sluice Ramp Pour
First Conduit Pulled to Power House (high voltage)
Closeup of Diversion Location
Another High Flow Event – 275 CFS
Progress Report for AEA Grant HBC November10.docx
Diversion Tunnel Handles High Flow Adequately
Tunnel Air Duct Ready For Pour
Lyle Patched and Smoothed Control Room
Debris Slab Nearly Completed
Forming the E+6 Wall for Dental Concrete in Creek
Transformer Vault Forms
Progress Report for AEA Grant HBC November10.docx
Electrical Conduits Complete in Tunnel
Manway Welded to Penstock – last steel piece
Pouring E‐Line Dental Concrete
E+6 Wall Ready to Pour
A‐Line Pilaster With a Hole for Vibrating
Pouring the Air Vent at C‐4
Progress Report for AEA Grant HBC November10.docx
Extreme Access Shimming the Penstock Across Bridge
Welding the High Voltage Junction Box Lower Portal
Forms and Bending Table in the Creek
“D” Line Upstream Edge of the Dam
Site Safety During Penstock Coating Work
8” HDPE to Carry Bentonite Water and Silt to Beach
Progress Report for AEA Grant HBC November10.docx
Diversion Dam Rebar, Note Straddles Hard Rock Seam
Heating the Roof for Waterproof Membrane
Intake Rebar Matrix Hugging the Rock
Lighting In the Control Room
Gary Insulating the Control Room
Rebar Mat Looking Left Toward E Line
Progress Report for AEA Grant HBC November10.docx
Intake Pour Between E and D lines
Control Room Insulation
Elevation 257 Slab
Tunnel Lighting Completed – On Temporary Power
Control Room Panel A
Intake After Thanksgiving Break