HomeMy WebLinkAboutElfin Cove REFund GrantApp
ALASKA RENEWABLE ENERGY FUND
GRANT APPLICATION
Round IV – FY 2012
For
PHASE 3 OF ELFIN COVE HYDROPOWER PROJECT
Submitted to
Alaska Energy Authority
813 West Northern Lights Boulevard
Anchorage, Alaska 9503
By
Elfin Cove Utility Commission
Community of Elfin Cove Non-Profit Corporation
PO Box 2
Elfin Cove, Alaska 99825
September 15, 2010
Renewable Energy Fund
Grant Application Round IV
Elfin Cove Hydroelectric Project – Design and Permitting
AEA11-005 Grant Application Page 2 of 27 9/14/2010
SECTION 1 – APPLICANT INFORMATION
Name (Name of utility, IPP, or government entity submitting proposal)
Community of Elfin Cove Non-Profit Corporation, Elfin Cove Utility Commission
Type of Entity:
Public Electric Utility
Mailing Address
PO Box 1, Elfin Cove, AK 99825
Physical Address
Community Building, Elfin Cove
Telephone
907-239-2226
Fax
907-239-2226
Email
janedbutton@gmail.com
1.1 APPLICANT POINT OF CONTACT / GRANTS MANAGER
Name
Jane Button
Title
Project Administrator
Mailing Address
PO Box 2, Elfin Cove, AK 99825
Telephone
907-723-8514
Fax
907-239-2226
Email
janedbutton@gmail.com
1.2 APPLICANT MINIMUM REQUIREMENTS
Please check as appropriate. If you do not to meet the minimum applicant requirements, your
application will be rejected.
1.2.1 As an Applicant, we are: (put an X in the appropriate box)
X An electric utility holding a certificate of public convenience and necessity under AS
42.05, or
An independent power producer in accordance with 3 AAC 107.695 (a) (1), or
A local government, or
A governmental entity (which includes tribal councils and housing authorities);
YES
1.2.2. Attached to this application is formal approval and endorsement for its project by
its board of directors, executive management, or other governing authority. If the
applicant is a collaborative grouping, a formal approval from each participant’s
governing authority is necessary. (Indicate Yes or No in the box )
YES
1.2.3. As an applicant, we have administrative and financial management systems and
follow procurement standards that comply with the standards set forth in the grant
agreement.
YES
1.2.4. If awarded the grant, we can comply with all terms and conditions of the attached
grant form. (Any exceptions should be clearly noted and submitted with the
application.)
YES 1.2.5 We intend to own and operate any project that may be constructed with grant
funds for the benefit of the general public.
Renewable Energy Fund
Grant Application Round IV
Elfin Cove Hydroelectric Project – Design and Permitting
AEA11-005 Grant Application Page 3 of 27 9/14/2010
SECTION 2 – PROJECT SUMMARY
This is intended to be no more than a 1-2 page overview of your project.
2.1 Project Title – (Provide a 4 to 5 word title for your project)
Elfin Cove Hydroelectric Project
2.2 Project Location –
Include the physical location of your project and name(s) of the community or communities that will
benefit from your project.
The project will be located on Crooked Creek and Jim’s Lake, located approximately one mile south of
Elfin Cove. The project will benefit Elfin Cove.
2.3 PROJECT TYPE
Put X in boxes as appropriate
2.3.1 Renewable Resource Type
Wind Biomass or Biofuels
X Hydro, including run of river Transmission of Renewable Energy
Geothermal, including Heat Pumps Small Natural Gas
Heat Recovery from existing sources Hydrokinetic
Solar Storage of Renewable
Other (Describe)
2.3.2 Proposed Grant Funded Phase(s) for this Request (Check all that apply)
Reconnaissance X Design and Permitting
Feasibility Construction and Commissioning
Conceptual Design
2.4 PROJECT DESCRIPTION
Provide a brief one paragraph description of your proposed project.
The project will include a run-of-river hydroelectric project between Crooked Creek and Jim’s Lake (the
upper project), and a second storage hydroelectric project between Jim’s Lake and tidewater (the lower
project). According to Polarconsult’s June 2010 Reconnaissance Study, the upper project would have an
estimated installed capacity of 50 kW, and the lower project would have an estimated installed capacity of
150 kW. These projects will meet an estimated 97% of Elfin Cove’s existing electrical demand, and also
provide a substantial amount of interruptible excess electricity.
Renewable Energy Fund
Grant Application Round IV
Elfin Cove Hydroelectric Project – Design and Permitting
AEA11-005 Grant Application Page 4 of 27 9/14/2010
2.5 PROJECT BENEFIT
Briefly discuss the financial and public benefits that will result from this project, (such as reduced fuel
costs, lower energy costs, etc.)
Based on current studies, we will be able to meet our energy needs solely with hydroelectric power from
this project for nearly all of the year. The diesel power plant would only need to be used during hydro
maintenance episodes, or during long droughts in the summertime. The estimated fuel savings will be
27,400 gallons of diesel fuel per year. Using the average 2010 fuel price in Elfin Cove of $4.00/gallon,
this equates to an annual savings of $109,600 in power plant fuel alone. Over the course of the next 20
years, if fuel prices remained constant, this savings would amount to over $1.6 million.
The mid range EIA energy forecast for Elfin Cove prepared by AEA in 2010 projects a heating fuel cost
in Elfin Cove of $3.99 a gallon in 2010 which is consistent with current prices for diesel fuel for the
power plant. AEA’s heating fuel price projections are therefore used for calculating project benefits.
Using these fuel cost projections, the present worth of avoided fuel purchases for the electric utility over
the project's 50 year life is over $4 million.
Much of the analysis of benefits of this project depends on the price of fuel. Because of the high cost of
transporting fuel to Elfin Cove’s remote location, and its limited selection of fuel suppliers, the decline in
fuel prices in 2009 was barely felt in Elfin Cove. Yet long-term fuel price increases, such as we saw in
2008, are magnified in Elfin Cove. Therefore, fuel savings from this project are likely to remain important
in Elfin Cove. Changes in the federal requirements for vessels transporting fuel on water will be
implemented within the next five years, likely resulting in even higher costs for diesel fuel used to
generate electricity.
Saving fuel is not the only benefit of this project. Maintenance and repair costs on the diesel generators
will also be substantially diminished. Reduced loads on the newly renovated power plant will greatly
extend the life of those diesel generators, thereby reducing replacement costs. This green energy source
will further benefit the Alaskan public with cleaner air, less noise pollution, diminished fossil fuel
deliveries to Elfin Cove, a more pristine environment, etc.
All these factors will help to keep Alaska unspoiled, maintaining its desirability as a tourist destination.
Tourism is important as a fundamental economic engine, in many parts of Alaska, and it contributes
considerably to the economy of Elfin Cove.
2.6 PROJECT BUDGET OVERVIEW
Briefly discuss the amount of funds needed, the anticipated sources of funds, and the nature and source
of other contributions to the project.
For Phase 3 – Permitting and Design (proposed here) the total funds needed are $395,000, which would
consist of $347,000 in grant funding, and $48,000 in local matching funds. In addition, there will be in-
kind contributions of local labor, grant management, materials, tools, and logistical support (i.e., transport
by boat, and other access to the project site).
The estimated costs for the full project (Phase 3 and Phase 4 - Construction) are shown in Table 1, on the
following page. These estimates are based on the assumption that Phase 3, including the FERC
permitting process, will take three years, beginning in 2011, and that Phase 4, the construction, can begin
in 2014.
Phase 3 (Design
& Permitting)
Phase 4
(Construction)
Recon Cost Estimate
Work Item Estimate (2010$)in 2014$
FERC Licensing & Permitting 185,000
Geotech, Hydrology, Surveys, Site Control 60,000
Design 134,800
Local Project Administration 15,200
Phase 3 Subtotal 395,000
Transmission / Communications 210,000
Access Trails 250,000
Intake Structures 150,000
Penstocks 150,000
Powerhouses 725,000
Equipment 145,000
Freight 68,000
Construction Subtotal 1,698,000$ 2,008,000$
Design and Construction Engineering 125,000 148,000
Construction Management & Administration 60,000 71,000
Project Subtotal -$ 1,883,000$ 2,227,000$
15% Contingency 282,450 334,000
Phase 4 Subtotal 395,000$ 2,165,450$ 2,561,000$
Proposed funding sources for Phase 3
Alaska Renewable Energy Fund grant 347,000$
Local matching funds 48,000$
Totals 395,000$
Table 1.
Crooked Creek/Jim's Lake Hydroelectric Generation Cost Estimate Summary
Renewable Energy Fund
Grant Application Round IV
Elfin Cove Hydroelectric Project – Design and Permitting
AEA11-005 Grant Application Page 5 of 27 9/14/2010
2.7 COST AND BENEFIT SUMARY
Include a summary of grant request and your project’s total costs and benefits below.
Grant Costs
(Summary of funds requested)
2.7.1 Grant Funds Requested in this application. $ 347,000
2.7.2 Other Funds to be provided (Project match) $ 48,000
2.7.3 Total Grant Costs (sum of 2.7.1 and 2.7.2) $ 395,000
Project Costs & Benefits
(Summary of total project costs including work to date and future cost estimates to get to a fully
operational project)
2.7.4 Total Project Cost (Summary from Cost Worksheet
including estimates through construction)
$3,100,000
2.7.5 Estimated Direct Financial Benefit (Savings) $4,023,176
(fuel offset, O&M savings,
and space heating fuel
offsets from interruptible
energy usage.)
2.7.6 Other Public Benefit (If you can calculate the benefit in
terms of dollars please provide that number here and
explain how you calculated that number in your application
(Section 5.)
Incalculable, but valuable.
See third paragraph of
Section 2.5, above.
Renewable Energy Fund
Grant Application Round IV
Elfin Cove Hydroelectric Project – Design and Permitting
AEA11-005 Grant Application Page 6 of 27 9/14/2010
SECTION 3 – PROJECT MANAGEMENT PLAN
Describe who will be responsible for managing the project and provide a plan for successfully
completing the project within the scope, schedule and budget proposed in the application.
3.1 Project Manager
Tell us who will be managing the project for the Grantee and include contact information, a
resume and references for the manager(s). If the applicant does not have a project manager
indicate how you intend to solicit project management support. If the applicant expects project
management assistance from AEA or another government entity, state that in this section.
The Community of Elfin Cove uses an open process to solicit applications and select personnel for local
project positions, so we cannot say for certain who will be the project manager(s). For recent electric
power-related projects in Elfin Cove, Jane Button and Hap Leon have served as local project
administrators, and they have managed the recent and on-going efforts to develop this project. Ms.
Button and Mr. Leon both have experience in project management, most recently including coordinating
the power plant replacement, the power distribution system improvements, and Phase 2 of the
Community’s hydroelectric project (currently underway). Resumes for Ms. Button and Mr. Leon are
attached to this grant application.
During these recent projects, we have also benefited from project management support that AEA provides
to rural Alaskan communities, and we would welcome that support in this next phase as well.
3.2 Project Schedule
Include a schedule for the proposed work that will be funded by this grant. (You may include a
chart or table attachment with a summary of dates below.)
A schedule for Phase 3, as proposed here, is shown in Table 2, on the following page. This schedule is
based on the assumption that a grant agreement can be in place by July 1, 2011.
We have an engineering firm retained under Phase 2 of this project (reconnaissance and feasibility study),
which will be completed by the end of 2010, so we can give the engineers notice to proceed shortly after
the grant is awarded. The engineers are scheduled to have the feasibility study completed this November,
and will file permit applications on the community’s behalf by the end of 2010. Project design would
proceed in pace with the permitting process under the requested Phase 3 funds.
The schedule for permitting will be determined by the FERC process. If the projects are eligible for a <5
MW exemption from licensing, a FERC exemption could be obtained in as little as one year. Obtaining a
FERC license could take three years. At this time, it is assumed that the project will require a FERC
license, which would be issued in 2014. The project would be constructed during 2014, possibly
extending into 2015.
If unexpected issues should arise during the FERC process, the schedule might need to be extended
somewhat beyond that shown in Table 2.
We are aware that sometimes resource concerns require that changes be made in the design or operation
of power plants. Although we have seen no evidence that Crooked Creek or Jim’s Lake are fish habitat,
new information may arise during the course of Phase 3, and there may be other concerns which require
modifications to the system design. For this reason, Table 2 shows possible additional engineering work
(indicated by the cross-hatched bar) during the first half of 2013.
Renewable Energy Fund
Grant Application Round IV
Elfin Cove Hydroelectric Project – Design and Permitting
AEA11-005 Grant Application Page 7 of 27 9/14/2010
3.3 Project Milestones
Define key tasks and decision points in your project and a schedule for achieving them. The
Milestones must also be included on your budget worksheet to demonstrate how you propose to
manage the project cash flow. (See Section 2 of the RFA or the Budget Form.)
A detailed schedule for Phase 3 of this project, including key tasks and milestones, is shown in Table 2,
on the preceding page. The key tasks are design and engineering, and coordinating the permitting process
for the hydroelectric power project. This latter task includes resolving any environmental issues that are
identified. These tasks are broken out in more detail in Table 2, along with relevant milestones for the
project.
3.4 Project Resources
Describe the personnel, contractors, equipment, and services you will use to accomplish the
project. Include any partnerships or commitments with other entities you have or anticipate will
be needed to complete your project. Describe any existing contracts and the selection process
you may use for major equipment purchases or contracts. Include brief resumes and references
for known, key personnel, contractors, and suppliers as an attachment to your application.
The Community of Elfin Cove has contracted with Polarconsult Alaska, Inc., as the engineering firm to
work with us as part of Phase 2 of this project. One of our criteria for selecting this firm was that they
will be able to work with us through Phase 3 (proposed here) and be available for construction
engineering in the construction in Phase 4.
Joel Groves of Polarconsult is the project manager working on Phase 2. A brief resume with references is
attached to this application.
3.5 Project Communications
Discuss how you plan to monitor the project and keep the Authority informed of the status.
Our local project administrators, in collaboration with the engineers, will prepare quarterly reports to the
Alaska Energy Authority. These reports will summarize the progress of the project, as well as its
financial status.
We have been able to work well with Joel Groves of Polarconsult as we conclude Phase 2 of the project.
He is readily available by phone or e-mail and is very responsive to requests for information or assistance.
We look forward to a continuation of our working relationship with Polarconsult on this project.
3.6 Project Risk
Discuss potential problems and how you would address them.
The bulk of potential problems arise from natural hazards such as flooding, earthquakes, active faults,
tsunamis, landslides, ice movement, snow avalanches and erosion. The primary natural hazard risk factor
identified to date is the potential for mass wasting events (land slides and rock falls) that could impact an
intake at Crooked Creek or the power line to Elfin Cove. Power line risk can be mitigated by selecting an
alignment that avoids the toe of the mountains to the east of the project. The risk at the Crooked Creek
intake is not readily mitigated. This is a low probability event over the life of the project that would
require repair to the intake.
Environmental or cultural resources could be identified in the course of the project that could affect the
project cost. These will be identified and addressed in the Phase 3 permitting project.
Renewable Energy Fund
Grant Application Round IV
Elfin Cove Hydroelectric Project – Design and Permitting
AEA11-005 Grant Application Page 8 of 27 9/14/2010
SECTION 4 – PROJECT DESCRIPTION AND TASKS
Tell us what the project is and how you will meet the requirements outlined in Section 2 of
the RFA.
The level of information will vary according to phase(s) of the project you propose to
undertake with grant funds.
If you are applying for grant funding for more than one phase of a project provide a
plan and grant budget form for completion of each phase.
If some work has already been completed on your project and you are requesting funding for
an advanced phase, submit information sufficient to demonstrate that the preceding phases
are satisfied and funding for an advanced phase is warranted.
4.1 Proposed Energy Resource
Describe the potential extent/amount of the energy resource that is available.
Discuss the pros and cons of your proposed energy resource vs. other alternatives that may be
available for the market to be served by your project.
As part of the current Phase 2 effort, Polarconsult completed a reconnaissance study of the hydropower
resources available to Elfin Cove which is the source of information in this proposal. Polarconsult is
currently completing a feasibility study for the Crooked Creek / Jim’s Lake hydroelectric project. The
findings of this study, expected in November 2010, will be shared with AEA.
Reliable back-up diesel generation is in place with the Elfin Cove powerhouse upgrade project completed
in 2007. Additionally a distribution system upgrade was completed in summer 2009.
Some of the pros of this project include
1. Reduced dependence upon costly diesel fuel;
2. Reduced air pollution from diesel exhaust;
3. Reduced noise from the diesel power plant, which is located in the middle of the community;
4. Reduced hazardous waste from lubricants and system maintenance, and potential of land or
water pollution in the event of fuel spills; and
5. Greatly reduced cost for power generation.
Because southeast Alaska is a temperate rainforest with abundant precipitation, the energy source is
completely renewable. Hydropower is a proven alternative energy technology.
We have considered alternatives to hydropower, including wind power and tidal power. The potential for
wind power around Elfin Cove has been assessed and found to be inadequate. Tidal power, however,
offers more potential in our area. The passes between Cross Sound and Icy Strait, about two miles from
the entrance to Elfin Cove, offer a great potential for tidal power generation. We are interested in
exploiting this resource, and would welcome the opportunity to become a model community powered by
tidal energy.
Tidal energy is a nascent technology, however. While it offers great potential, getting it operational might
be many years off. We would like to reduce our dependence on diesel fuel as soon as possible and as
much as is possible, given the seasonal nature of our demand for electricity.
The only significant negative impact of the use of hydropower would be during the winter months when
the community would lose the heat that is currently recovered from the diesel generators as the source for
heat for the Community Building and the Community Shop. Installing a waste oil heater is a possible
solution to building heat requirements. This option would also solve the problem of disposition of waste
oil, which currently must be transported out of Elfin Cove. Electric heating in these two buildings can also
be used as a “dump-load” to utilize surplus power generated by this project in the winter. Under this
scenario, interruptible electric heating could be tied into the existing waste heat loop to heat these
buildings and also maintain the generators at temperature for back up power.
Renewable Energy Fund
Grant Application Round IV
Elfin Cove Hydroelectric Project – Design and Permitting
AEA11-005 Grant Application Page 9 of 27 9/14/2010
4.2 Existing Energy System
4.2.1 Basic Configuration of Existing Energy System
Briefly discuss the basic configuration of the existing energy system. Include information about
the number, size, age, efficiency, and type of generation.
Elfin Cove’s powerhouse, originally constructed in 1985, was upgraded in 2007. Three new diesel
generators were installed at that time, sized at 67 kW, 101 kW and 179 kW, for a total installed capacity of
347 kW. Parallel switchgear, improved ventilation and fire suppression and alarm systems were part of
the project. Our most recent data show generation efficiencies of 12 to 13 kWh per gallon of diesel burned.
Our electrical distribution system also dates from the mid-1980’s. The system was expanded, with most
components replaced, in spring and summer 2009 with funding from a Denali Commission grant,
administered by AEA. The upgrade replaced distribution lines to residential and commercial buildings in
Elfin Cove, and installed conveniently located pedestals for power to boats in the Inner Harbor, on the dry
dock grid and on the government float on the northwest side of the Cove.
4.2.2 Existing Energy Resources Used
Briefly discuss your understanding of the existing energy resources. Include a brief discussion of
any impact the project may have on existing energy infrastructure and resources.
The Elfin Cove diesel power plant is newly upgraded (2007) and the distribution system is newly
upgraded (2009). The bulk fuel facility is also new and in good condition. These assets would be used as
a backup generation source to the hydroelectric project. A hydropower project will significantly extend
the life of the newly installed diesel generators by greatly reducing the number of hours they run each
year.
4.2.3 Existing Energy Market
Discuss existing energy use and its market. Discuss impacts your project may have on energy
customers.
Elfin Cove’s electric utility customers currently pay approximately 52 cents per kilowatt-hour for the
energy they consume. Residential and community customers get a significant reduction in that rate, thanks
to the Power Cost Equalization program. Commercial and federal customers get no relief from the high
rates charged. If we were able to cut out the fuel cost for much of the year, the energy price to all electric
power consumers in Elfin Cove could be reduced considerably.
Renewable Energy Fund
Grant Application Round IV
Elfin Cove Hydroelectric Project – Design and Permitting
AEA11-005 Grant Application Page 10 of 27 9/14/2010
4.3 Proposed System
Include information necessary to describe the system you are intending to develop and address
potential system design, land ownership, permits, and environmental issues.
4.3.1 System Design
Provide the following information for the proposed renewable energy system:
A description of renewable energy technology specific to project location
Optimum installed capacity
Anticipated capacity factor
Anticipated annual generation
Anticipated barriers
Basic integration concept
Delivery methods
The best current renewable energy technology for our location is hydropower. Phase 2, currently
underway, has led the community to select a project at Crooked Creek and Jim’s Lake. This fall, the
feasibility study will provide more detailed information about this project. The Crooked Creek / Jim’s
Lake hydroelectric facility will include:
A diversion structure on Crooked Creek at 480’.
An approximately 1,400-foot long 14-inch penstock from Crooked Creek to Jim's Lake.
An approximately 50 kW powerhouse on Jim’s Lake at 335’ to recover energy between Crooked
Creek and Jim’s Lake.
An approximately 12-foot tall dam at the outlet to Jim’s Lake and a siphon intake to provide 95
acre-feet of storage in Jim’s Lake (regulated elevation from 330 to 350 ft).
An approximately 2,000-foot long 14-inch penstock from Jim's Lake to tidewater in Port Althorp.
An approximately 150 kW powerhouse at tidewater (elevation of 25 ft.).
Approximately 6,600 feet of power line to tie into the existing distribution system.
Approximately 9,600 feet of communications cable back to the diesel powerhouse.
Approximately 8,200 feet of access corridors.
The proposed installed capacity will be 200 kW. This estimate is based on reconnaissance analysis
completed by Polarconsult in 2009. A more refined estimate will be included in the feasibility study,
based on an additional year of hydrology data for the project collected in 2010.
Annual estimated generation potential of this project is 716,000 kWh. Of this, 344,000 kWh is estimated
to meet current system demand, and an additional 372,000 kWh is estimated to be available for
interruptible loads. Based on these estimates, the project would have a capacity factor of 41%. These
estimates will be refined in the feasibility study later this year.
To maximize the utilization of energy from the project, the run-of-river hydro from Crooked Creek to
Jim’s Lake would be the governing generator, with the storage hydro and any diesels following to meet
load. Excess energy would be dispatched by a load governor to dump loads in the community. Dedicated
electric meters and an interruptible tariff could be used to fully utilize the excess energy from the hydros.
The remote location of the watersheds will likely require that the work be completed mainly with hand or
small power tools after staging of materials by helicopter drop. There is no road access to either Elfin
Cove or Port Althorp.
Integration of the hydropower into the existing grid will be via an on-ground transmission line to the
newly renovated distribution system. There will be a communication cable between the hydroelectric
powerhouse and the diesel power plant in Elfin Cove.
Renewable Energy Fund
Grant Application Round IV
Elfin Cove Hydroelectric Project – Design and Permitting
AEA11-005 Grant Application Page 11 of 27 9/14/2010
4.3.2 Land Ownership
Identify potential land ownership issues, including whether site owners have agreed to the
project or how you intend to approach land ownership and access issues.
Most of the elements of the proposed project (the proposed diversion, pipeline, penstock, powerhouse and
most of the transmission line) would be on Tongass National Forest land, managed by the U.S. Forest
Service. We expect that, given the close coordination we have already initiated, we can obtain the
necessary permits from the Forest Service to develop this project. The Community of Elfin Cove has a
good working relationship with the USFS Hoonah Ranger District, having several years ago negotiated
with the Forest Service for a transfer of land in Elfin Cove.
More recently, we procured U.S. Forest Service permits to place stream gages on both Crooked Creek and
Jim’s Lake, under Phase 2 of this project. We have been informed that the USFS is very interested in
cooperating with Elfin Cove to move the project along.
Once it reaches Elfin Cove, the transmission line will tie into the existing distribution system. To access
the distribution system, the transmission line will need to cross a short length of privately-owned land near
the head of the inner cove. The landowner in question is very supportive of this project (including
participating in the development of this proposal) and we do not expect any problems in obtaining the
necessary permission to cross that land.
4.3.3 Permits
Provide the following information as it may relate to permitting and how you intend to address
outstanding permit issues.
List of applicable permits
Anticipated permitting timeline
Identify and discussion of potential barriers
The Federal Energy Regulatory Commission (FERC) has informed us that because of the small size and
the Alaska location of this project, our license should come from the Regulatory Commission of Alaska
(RCA) rather than from FERC; however the RCA has not enacted regulations necessary to assume
licensing jurisdiction. We therefore expect that we will have to go through the FERC licensing process.
While the projects could be eligible for an exemption from FERC licensing under FERC’s <5 MW
exemption rule, the development of Jim’s Lake into a reservoir is expected to require FERC licensing.
This process will involve coordination with a number of resource agencies, including, but not limited to,
the following:
U.S. Forest Service
The Forest Service manages the land at both the Crooked Creek/Jim's Lake and Roy's Creek project sites,
because they are in the Tongass National Forest. We will have to coordinate with the Forest Service and
obtain necessary permission from them to develop either project. Our relationship with the Forest Service
was discussed in more detail in the previous section (4.3.2) of this proposal.
Alaska Department of Natural Resources
The State of Alaska owns tidelands and bottomlands, which it manages through the Department of Natural
Resources (DNR). We will need to obtain permits from DNR for structures installed in creeks or across
tidelands. DNR would also need to issue water rights for the project.
Army Corps of Engineers
If we install pilings, a floating dock, or any other structure on the beach or in the waters of Port Althorp or
at the Inner Cove, we would require a permit under Section 404 of the Clean Water Act, and/or Section 10
of the Rivers and Harbors Act, from the U.S. Army Corps of Engineers. Obtaining these permits also
Renewable Energy Fund
Grant Application Round IV
Elfin Cove Hydroelectric Project – Design and Permitting
AEA11-005 Grant Application Page 12 of 27 9/14/2010
involves a public review and comment period. The Corps has issued these permits fairly routinely for
docks and similar projects in and around Elfin Cove in recent years.
The Corps of Engineers also would need to issue permits for wetlands disturbance / fill. Given their scale,
either project would likely qualify for a nationwide permit #17 for small hydroelectric projects.
Alaska Department of Fish and Game
Alaska Statute 16.05.841, the Fishway Act, and Alaska Statute 16.05.871, the Anadromous Fish Act, both
would require that we provide prior notification and obtain permit approval from the Department of Fish
and Game (ADFG) Habitat Division to construct a hydraulic project or to use, divert, obstruct, or change
the natural flow or bed of a body of water.
This permit approval will be necessary even though neither Crooked Creek nor Roy’s Creek is listed by
ADFG as an anadromous fish-producing stream. They are not listed in the Catalog of Waters Important
for Spawning, Rearing, or Migration of Anadromous Fishes – Southeastern Region (ADFG, Special
Publication 08-06, June 2, 2008). Still, it is likely that certain sampling and surveys will be required as
part of Phase 3 of this project in order to confirm the presence or absence of fish in these streams.
One of the consultants working with us on Phase 2 of this project has a good working relationship with
ADFG permitting staff, and has experience in the sampling and surveying needed to determine whether a
stream supports anadromous fish, or other resources of concern. One of our community members is also a
fishery biologist with extensive experience in fish surveys and sampling. We expect that we can smoothly
coordinate our project with any concerns that may arise about natural resources.
4.3.4 Environmental
Address whether the following environmental and land use issues apply, and if so how they will
be addressed:
Threatened or Endangered species
Habitat issues
Wetlands and other protected areas
Archaeological and historical resources
Land development constraints
Telecommunications interference
Aviation considerations
Visual, aesthetics impacts
Identify and discuss other potential barriers
To the best of our knowledge, the hydroelectric project would not impact any threatened or endangered
species. There are no significant habitat issues, designated critical habitat, or protected areas in the
geographic area under consideration. The proposed projects do not present threats to any fish, plant life,
wildlife or marine life. No archaeological or historical resources will be disturbed by the project. The
only buildings to be constructed are two powerhouses which will be located within the Tongass National
Forest and thus present no land development issues. There will be no interference to telecommunications.
Due to the remote location of the project, and the small size of the structures, there are no aviation
considerations. The powerhouse and any dock will be visible from the water at close range, but their small
size is not likely to cause significant negative aesthetic impact. Any public concerns will be addressed
during a public meeting process.
We realize, however, that during the permitting process, we will likely be required to conduct surveys to
document the presence or absence of species of concern, and to determine whether there will be any
impact of the project on them.
4.4 Proposed New System Costs and Projected Revenues
Renewable Energy Fund
Grant Application Round IV
Elfin Cove Hydroelectric Project – Design and Permitting
AEA11-005 Grant Application Page 13 of 27 9/14/2010
(Total Estimated Costs and Projected Revenues)
The level of cost information provided will vary according to the phase of funding requested and
any previous work the applicant may have done on the project. Applicants must reference the
source of their cost data. For example: Applicants Records or Analysis, Industry Standards,
Consultant or Manufacturer’s estimates.
4.4.1 Project Development Cost
Provide detailed project cost information based on your current knowledge and understanding of
the project. Cost information should include the following:
Total anticipated project cost, and cost for this phase
Requested grant funding
Applicant matching funds – loans, capital contributions, in-kind
Identification of other funding sources
Projected capital cost of proposed renewable energy system
Projected development cost of proposed renewable energy system
The total project cost, including Phase 1 (completed) Phase 2 (which is underway), Phase 3 (which we are
proposing here) and Phase 4 (construction) is estimated to be $3,100,000. The development costs (Phases
1 thorough 3) total $539,000, while the construction cost in the year 2014/5 is estimated to be $2,561,000.
These cost estimates are detailed in Table 1, and are based on the Hydroelectric Reconnaissance Study for
Elfin Cove, completed in 2010 by Polarconsult.
It is likely that, over the next four years, actual construction inflation will vary from that used in this
estimate. Costs will also differ as additional information is analyzed to refine the project size and
construction methods. Given the current economic conditions, at this time it is premature to speculate on
the details of construction costs that will not be incurred until at least four years from now.
4.4.2 Project Operating and Maintenance Costs
Include anticipated O&M costs for new facilities constructed and how these would be funded by
the applicant.
(Note: Operational costs are not eligible for grant funds however grantees are required to meet
ongoing reporting requirements for the purpose of reporting impacts of projects on the
communities they serve.)
AEA’s estimate for O&M costs is $.021/kWh which would amount to about $6,700 annually. There will
also be a savings from displaced diesel O&M costs if the project is built; AEA estimates those savings to
be $.02/kWh. These two figures nearly cancel each other out with virtually no net change.
Our existing electric utility has a fee structure adequate to finance all of our O&M costs.
4.4.3 Power Purchase/Sale
The power purchase/sale information should include the following:
Identification of potential power buyer(s)/customer(s)
Potential power purchase/sales price - at a minimum indicate a price range
Proposed rate of return from grant-funded project
The Elfin Cove Utility Commission, which has been operating for 23 years, has an existing customer base.
This project would provide power to them at the rates that are in effect at the time the hydroelectric power
is generated and used.
Renewable Energy Fund
Grant Application Round IV
Elfin Cove Hydroelectric Project – Design and Permitting
AEA11-005 Grant Application Page 14 of 27 9/14/2010
Currently, the rates are $0.52 per kWh. Because our electric power is currently generated entirely with
diesel generators, and because the cost of fuel is so variable, it is too early to speculate on what the rates
might be when the plant is constructed, which is estimated to occur in 2014. However, when the
hydroelectric system is in operation, we will, at the very least, be able to remove the fuel surcharge from
electric power generated by that system.
The reconnaissance study considered the variables that go into electric rates, and estimated that electric
rates with the hydros in service could range from $0.12 to $0.64 per kWh, depending largely on how the
project is financed. Higher rates are associated with debt-financing for the project.
4.4.4 Project Cost Worksheet
Complete the cost worksheet form which provides summary information that will be considered
in evaluating the project.
Download the form, complete it, and submit it as an attachment. Document any conditions or
sources your numbers are based on here.
The Cost Worksheet is attached at the end of this application. Note that the cost estimates in that form
agree with those in Table 1, earlier in this document. As described above the estimates are derived from
the recently completed reconnaissance study.
In developing these cost estimates, we are also assuming that the design and permitting in Phase 3 will
take approximately three years, and that Phase 4 construction will begin in 2013.
SECTION 5– PROJECT BENEFIT
Explain the economic and public benefits of your project. Include direct cost savings,
and how the people of Alaska will benefit from the project.
The benefits information should include the following:
Potential annual fuel displacement (gal and $) over the lifetime of the evaluated
renewable energy project
Anticipated annual revenue (based on i.e. a Proposed Power Purchase Agreement price,
RCA tariff, or cost based rate)
Potential additional annual incentives (i.e. tax credits)
Potential additional annual revenue streams (i.e. green tag sales or other renewable
energy subsidies or programs that might be available)
Discuss the non-economic public benefits to Alaskans over the lifetime of the project
The estimated fuel displacement, is 27,400 gallons per year. Over a 50-year project lifetime, this savings
would total 1.37 million gallons. At average 2010 fuel prices in Elfin Cove, this amounts to a savings of
$109,600 per year. Using the mid-range EIA energy forecasts developed by AEA, the net present worth of
electric utility fuel savings from the project is over $3 million, and total fuel savings from the project is
over $4 million.
Because the hydro project would be owned by the utility, revenues are not applicable. The hydro project
is expected to allow the utility to decrease rates, reducing total revenues to the utility. Utility rates will be
determined by the continuing fixed costs of the utility (for O&M, G&A, etc.), the capital cost and
financing means used for the hydro (loans, grants, etc.), and the continuing (much reduced) fuel purchases
for diesel generation. If the hydro is 100% grant funded, is it expected that utility rates could be reduced
to the range of $0.12 to 0.17 per kWh.
Elfin Cove Utility Commission is owned by the Community of Elfin Cove Non-Profit Corporation and is
Renewable Energy Fund
Grant Application Round IV
Elfin Cove Hydroelectric Project – Design and Permitting
AEA11-005 Grant Application Page 15 of 27 9/14/2010
not subject to federal income tax, so tax credits will not be realized by this project. However, if renewable
energy subsidies become available in our region we will be well placed to take advantage of them to
further reduce utility rates.
In addition to the economic benefits, the people of Alaska will benefit from cleaner air (including reduced
emissions of carbon dioxide), reduced noise, and the pride in knowing that we can rely more on our own
locally available renewable resources to support our economy and community.
SECTION 6– SUSTAINABILITY
Discuss your plan for operating the completed project so that it will be sustainable.
Include at a minimum:
Proposed business structure(s) and concepts that may be considered.
How you propose to finance the maintenance and operations for the life of the project
Identification of operational issues that could arise.
A description of operational costs including on-going support for any back-up or existing
systems that may be require to continue operation
Commitment to reporting the savings and benefits
When the hydroelectric project is completed, it will be integrated into the overall power generation system
for Elfin Cove. The Community of Elfin Cove Non-Profit Corporation, through its subsidiary, the Elfin
Cove Utility Commission (ECUC) already has a system in place for operation and maintenance of our
system, setting price structures, billing and reporting, all of which allow us to operate our electrical system
in a sustainable manner. We already have personnel on staff to implement our existing system; those
personnel are competent to deal with the expanded responsibility brought on by the addition of a
hydroelectric power plant.
ECUC operates in the black and has no debt burden. The addition of the hydroelectric power plant should
allow us to continue operating in that manner, and to save for future infrastructure needs.
By providing for most of our electric power needs for nine months of the year, and a smaller proportion of
those needs for the remaining three months, this project will allow us to reduce our consumption of diesel
fuel, and thereby to reduce the effect of fuel price variability on our operations. Among other benefits, it
will allow us to reduce our electric rates.
As a working business plan, we have the Business Operating Plan of the Elfin Cove Utility Commission
Electric Utility Upgrade Project. The plan, prepared in 2007, is still in review, but it is a blueprint for
sustainable operations and management of our electric utility and we are following it.
This proposed hydroelectric project, when integrated into our Community power system, will therefore
bring increased affordability, stability and predictability to the financial operation of our electric utility.
This will tend to increase the desirability of Elfin Cove as a place to live and work, improving the
community's long term sustainability and security.
Excess energy from the hydro may be used for other economic development activities, such as installing an
ice machine to provide ice to the local commercial fishing fleet or other beneficial uses.
SECTION 7 – READINESS & COMPLIANCE WITH OTHER GRANTS
Discuss what you have done to prepare for this award and how quickly you intend to proceed
with work once your grant is approved.
Tell us what you may have already accomplished on the project to date and identify other grants
that may have been previously awarded for this project and the degree you have been able to
meet the requirements of previous grants.
Renewable Energy Fund
Grant Application Round IV
Elfin Cove Hydroelectric Project – Design and Permitting
AEA11-005 Grant Application Page 16 of 27 9/14/2010
The proposed project is the third phase of an ongoing effort to develop hydroelectric power for Elfin Cove.
The project began over 25 years ago, with a reconnaissance study by the Alaska Power Authority. In
2008, the Community of Elfin Cove began Phase 2, which focuses on stream-gauging to collect data
needed for design and engineering of the project. Under Phase 2, the community has produced a new
reconnaissance study to confirm that the Crooked Creek / Jim’s Lake project is still the best project for the
community, and the community will have a feasibility study of this project later in 2010. These studies are
drawing upon continuing stream gauging efforts and other data collection activities completed under the
Phase 2 funding.
The community is successfully meeting all of the requirements for previous grants for this project.
We have a hydroelectric engineering firm, and stream-gauging expert under contract as part of Phase 2,
and our working relationship with these consultants is a productive one, so we have the expertise ready to
continue with this project immediately, once the grant is approved.
Prior to Phase 2, we have received no other grants or other funding for this hydroelectric project;
however, we have received federal grant funding from the USDA Rural Utilities Service to upgrade our
diesel generator power plant, and portions of the electric distribution system. That project, which was
administered partially on the local level, is substantially complete. The project is in operation, and is
already successful in improving the fuel efficiency of our electric power system.
SECTION 8– LOCAL SUPORT
Discuss what local support or possible opposition there may be regarding your project. Include
letters of support from the community that would benefit from this project.
The community’s on-going efforts to obtain funding for hydroelectric development have met with
enthusiastic support (including unanimously-approved resolutions) from the Community of Elfin Cove.
SECTION 9 – GRANT BUDGET
Tell us how much you want in grant funds Include any investments to date and funding sources,
how much is being requested in grant funds, and additional investments you will make as an
applicant.
Include an estimate of budget costs by milestones using the form – GrantBudget3.doc
Provide a narrative summary regarding funding sources and your financial commitment to the project.
For Phase 3 (proposed here), the total funds needed are $395,000, which would consist of $347,000 in
grant funding and $48,000 in local matching funds. In addition, there will be in-kind contributions of
local labor, materials, tools, and logistical support (i.e., transport by boat and other access to the project
site).
For Phase 2, the stream gauging, reconnaissance study, and feasibility study now in progress, we have
committed $44,000 in community funds to match the $100,000 in grant money we were awarded in Grant
Number 2195343, Elfin Cove Hydro Assessment.
Renewable Energy Fund Round IV
Grant Application
Elfin Cove Hydroelectric Project – Design and Permitting
AEA 11-005 Application ATTACHMENTS 9/14/2010
ATTACHMENT A – CONTACT INFORMATION AND RESUMES
REPRESENTATIVE HYDROELECTRIC PROJECTS
polarconsult alaska, inc.
OOLLAARRCCOONNSSUULLTT AALLAASSKKAA,, IINNCC.., has extensive experience designing, permitting, constructing and
operating hydroelectric plants in Alaska. Our design professionals have been involved in hydro
in Alaska since 1966, and collectively have over 95 years of exper ience in the field.
SSEELLEECCTTEEDD HHYYDDRROO PPRROOJJEECCTTSS BBYY PPOOLLAARRCCOONNSSUULLTT EENNGGIINNEEEERRSS
P
Project Design
Capacity
Type of
Project Location Services Rendered
Mc Roberts
Creek 100 kW Run of River Palmer, AK Design, Permitting, Construction, Operation,
Owner.
Roy's Creek /
Crooked Creek 80 kW Run of River Elfin Cove, AK Reconnaissance and Feasibility Study,
Preliminary Design, FERC Permitting.
Knutson Creek 125 kW Run of River Pedro Bay, AK Reconnaissance Study.
Fourth of July
Creek 5,400 kW Run of River Seward, AK Reconnaissance and Feasibility Study, Owner.
Fishhook Creek 2,000 kW Run of River Hatcher Pass, AK Reconnaissance and Feasibility Study,
Permitting, Design, Construction, Owner.
Indian River 125 kW Run of River Tenakee Springs, AK Feasibility Study, Preliminary Design,
Permitting.
Glacier Fork 80,000 kW Storage Knik, AK Reconnaissance and feasibility study.
Indian Creek 60 kW Storage Chignik, AK Permitting, FERC Relicense.
Larsen Bay 475 kW Run of River Larsen Bay, AK Design, Permitting.
Old Harbor 500 kW Run of River Old Harbor, AK Feasibility Study, Design, FERC Permitting.
O’Brien Creek /
5 Mile Creek 400 kW Run of River Chitna, AK Feasibility Study, Preliminary Design.
Lace River 4,950 kW Storage Near of
Juneau, AK Preliminary Design, FERC Permitting.
Chuniisax
Creek 280 kW Storage Atka, AK Feasibility Study, Preliminary Design,
Permitting.
Angoon 600 kW Storage Angoon, AK Feasibility Study, Preliminary Design.
IINNDDIIAANN CCRREEEEKK HHYYDDRROO FFEERRCC LLIICCEENNSSIINNGG
PPOOLLAARRCCOONNSSUULLTT managed the FERC licensing process for
the owner of Indian Creek Hydro, a 60-kW installation
located in Chignik, Alaska. The multi-year FERC
licensing process required significant effort and
coordination relating to the development of the
Environmental Assessment. Key activities included:
Ø NEPA scoping meetings,
Ø Stream gauging and fish surveys,
Ø Geomorphological surveys of Indian Creek, and
Ø Preparation of License Application and EA.
REPRESENTATIVE HYDROELECTRIC PROJECTS
MMccRROOBBEERRTTSS CCRREEEEKK HHYYDDRROO
PPOOLLAARRCCOONNSSUULLTT principals designed, built, own
and operate the McRoberts Creek Hydro, located
near Palmer, Alaska. The 100-kW run-of-river
project has delivered power to the Matanuska
Electric Association grid since 1991.
The McRoberts Project is an excellent example
of renewable energy systems benefiting Alaskan
communities. The project has improved
recreational access to the Matanuska Peak area,
operates in harmony with the environment, and
provides renewable energy to local homes and
businesses.
OO’’BBRRIIEENN CCRREEEEKK HHYYDDRROO
PPOOLLAARRCCOONNSSUULLTT completed a conceptual design for
the Alaska Energy Authority to evaluate a run-of-
river hydroplant on O’Brien Creek to serve the
communit y of Chitina, Alaska on the Copper River.
Key activities included:
Ø Paper study to define project parameters,
Ø Handling and analysis of large LIDAR data set
to finalize a conceptual design,
Ø Field reconnaissance to evaluate intake
locations and penstock corridors, and
Ø Preliminary project cost estimate.
CCHHUUNNIIIISSAAXX CCRREEEEKK HHYYDDRROO
PPOOLLAARRCCOONNSSUULLTT designed and permitted a 280-kW run-of -river
hydro plant to offset costly diesel-electric power for the village of
Atka in the Aleutian Islands. Key project features include:
Ø A small concrete dam,
Ø 1,000-foot HDPE penstock, and
Ø Cross-flow turbine.
The project, to be completed in 2010, is expected to significantly
reduce power rates in the village.
polarconsult alaska, inc.
energy systems – environmental services – engineering design
1503 West 33rd Avenue, Suite 310 tel: 907.258.2420
Anchorage, Alaska 99503 fax: 907.258.2419
Internet Website: http://www.polarconsult.net
REPRESENTATIVE PROJECTS - HYDROELECTRIC
1
RECENT POLARCONSULT PROJECTS & PROJECT REFERENCES
Polarconsult has extensive experience working on all aspects of hydroelectric development.
From reconnaissance, feasibility, permitting, design, construction, inspection, operation,
maintenance, monitoring, and retrofitting, Polarconsult’s professional staff understands all
aspects of hydroelectric projects. Engineering budgets for past and current projects range from
tens of thousands to over a million dollars.
Polarconsult principals designed, built, own and operate the McRobert’s Creek Hydro, located
near Palmer, Alaska. The many lessons learned from owning and operating our own
hydroelectric project translates into valuable experience that pays off immensely for other
projects. One of the biggest obstacles to proper operation of a hydroelectric facility is intake
design. After numerous refinements, Polarconsult has designed and constructed an intake for the
McRobert’s project that operates automatically and virtually maintenance free even when
subje cted to the onslaught of debris brought about by floods and seasonal changes.
Another successful project, located in Pelican, Alaska, involved designing a steel support system
for an aging timber crib dam. Limited by helicopter access and narrow construct ion windows,
the location required a design that not only withstood the large forces of floods but needed to be
light enough and simple enough to be airlifted and quickly put into permanent place. Accurate
surveying, 3-D design, and close coordination wit h the project owner all resulted in a unique and
successful solution without an extravagant budget.
The experience and knowledge that Polarconsult’s professionals bring to a project are
exemplified by our work on the Kasidaya Creek hydroelectric project. Brought in by Alaska
Power and Telephone due to excessive costs on a tunnel and intake for a project that was in the
midst of construction, Polarconsult spent half a day in the field at the project site and provided
valuable insight and advice that changed the course of the construction to reduce project costs
and maintenance. Polarconsult’s recommendations to provide an access route up the creek to the
intake site were ultimately adopted into the now completed project.
All of Polarconsult’s core professionals have been involved in the numerous engineering
challenges surrounding hydroelectric projects for many years. Any one of our professional
engineers is more than capable of successfully identifying all the issues in a hydroelectric project
and using our comprehensive background and knowledge to forge solutions that aren’t narrowly
focused or short sighted.
SELECTED PROJECT PROFILES
Project: Pelican Dam Reinforcement and Penstock Design
Client: Pelican Seafoods
Reference Contact: Tom Whitmarsh, Pelican Seafoods, 907-735-2204
Engineering Budget: $175,000
Description
The Pelican Hydroelectric Power Plant was first constructed around 1946 to supply water and
power to the Pelican Seafoods Cannery constructed around the same time. A Dam Safety Review
determined that there was potential for failure of the existing timber crib dam during flood stages.
A field investigation was conducted to prepare an as-built of the existing timber crib dam, intake
structure, timber flume, wood stave penstock, and power plant. A unique design was arrived at to
shore up the existing dam to be stable under flood stages, and upgrade the existing intake to cut
down head losses.
REPRESENTATIVE PROJECTS - HYDROELECTRIC
2
Additionally, Polarconsult recently completed a design for replacement of the original flume,
surge tank, and elevated penstock. The design includes a new surge tank, new penstock, and
modifications to the intake and dam wing walls.
Project: Chignik Relicense
Client: Trident Seafoods
Reference Contact: Mike Duckworth, Trident Seafoods, 206-617-6612
Engineering Budget: $150,000
Description
Included in a Federal Energy Regulatory Commission (FERC) License are significant efforts and
coordination relating to the development of the Environmental Assessment. Activities include:
· National Environmental Protection Act (NEPA) scoping meetings
· Stream Gauging
· Fish Surveys
· Geomorphological surveys of Indian River including fish habitat analysis
· Dissemination of all data and correspondence through the development of a Project web
page and through traditional hard copy to over 50 particpants
The entire relicensing process was completed under the “applicant prepared EA” process in less
than 2 years (typically licensing time is 3 to 5 years).
Project: Larsen Bay Hydroelectric
Client: CRW Engineering Group, LLC
Refer ence Contact: Lenny Landis, AEA, 440-9320
Engineering Budget: $16,000
Description
Performed original design of 475 kW project with a gross head of 665 feet and a flow of 11 cfs.
Subsequent work included site inspection and analysis of existing hydroelectric system with
recommendations for upgrades to existing intake and penstock, addition of drainage diversion to
increase water flow to plant for increased power production, and consulting on controls upgrades
to interconnect hydro plant to community diesel generation plant.
The work activities also included the following:
· Analysis of hydrologic data to determine maximum potential power output on a monthly
basis
· Development of a parts list and the performance of ultrasonic thickness testing of the
penstock in the powerhouse
· Inspection of cracked turbine blades for hydroelectric plant
· Recommendations for repair of turbine as appropriate to the City and AEA
Project: Atka Hydro
Client: Alaska Energy Authority and CRW Engineering Group, LLC.
Reference Contact: Julie Dirks, City of Atka, 907-581-6226
Engineering Budget: $200,000
Description
Designed the 270 kW hydroelectric facility in Atka that is currently under construction.
Activities include the following:
· Topographic surveying to layout project features and tie into known monuments
· Development of legal descriptions based on survey data and final design for necessary
easements
REPRESENTATIVE PROJECTS - HYDROELECTRIC
3
· Investigation and description of anadromous fish affected by and in the project area
(including fish habitat assessments and setting of fish traps to capture and identify
species)
· Design of 1,060 feet of 30-inch diameter High Density Polyethylene Pipe (HDPE)
penstock
· Design of a cable stayed bridge spanning 100 feet
· Design of the 7.2/12.4 kV electrical cable connecting to the existing system
· Design of the powerhouse
· Specification of the turbine and generator
· Design of the 13-foot-high impoundment dam
Project: Fishhook Hydroelectric Project
Client: Fishhook Renewable Energy, LLC
Engineering Budget: $125,000
Description
Currently in the permitting phase, this project includes completion of a feasibility study,
permitting, and design of 2.0 MW run-of-river hydroelectric plant located on Fishhook Creek in
Hatcher Pass, Alaska. Performed surveying utilizing RTK GPS equipment and developed cost
estimates and a feasibility study by the fall of 2006.
Project: Kasidaya (Otter) Creek Intake
Client: Alaska Power & Telephone Company
Reference Contact: Vern Neitzer, AP&T, 907-983-2202
Engineering Budget: $15,000
Description
Site Inspection and project review. Provided a brief letter report to assist AP&T in seeking a
lower cost alternative for the intake and penstock tunnel that were in the original design. Project
was well into construction at the time. Made recommendations on an alternative for a dam,
intake configurations, access routes, and permitting actions. AP&T ultimately reconfigured the
original design based on our recommendations.
Project: Lace Hydro
Client: Lace River Hydro
Reference Contact: Bob Grimm, AP&T, 360-531-0320
Engineering Budget: $800,000
Description
Currently in the FERC licensing phase, this project involves feasibility investigation, FERC
permitting, and design of a 5 MW hydroplant in southeast Alaska. The Project intake is located
at an unnamed lake that would be used for storage. The lake has a surface area of approximately
384 acres. The dam intake is located at an elevation of 3,180 feet. From the intake, there would
be 7,600 feet of 21-inch diameter steel pipe leading to the powerhouse. The net hydraulic head is
3,000 feet. The project flow is estimated to be approximately 27 cfs. The total estimated energy
production of this project is 34,164,000 Kilowatt hours. Power transmission would consist of 5
miles of 14.4/24.9 kV buried cable and 7.1 miles of overhead transmission lines.
Project: McRobert's Creek Hydroelectric Project
Client: Earle Ausman, Enerdyne
Engineering Budget: $60,000
Description
REPRESENTATIVE PROJECTS - HYDROELECTRIC
4
McRobert's Creek Hydroelectric Plant is an excellent example of how cost effective a small
hydroelectric plant in Alaska can be. McRobert's Creek is located three miles to the east of
Palmer and is fed by the rock glaciers that lay below Matanuska Peak. The mountainous and
rugged terrain required PCA to use non-conventional construction techniques to complete the
project. Due to the terrain it was not feasible or environmentally desirable to build a road to the
power plant. The project was completed in an environmentally sound and aesthetically pleasing
manner. Hikers and horseback riders now use the trail for access to Matanuska Peak. The "run
of the river" facility consists of a rock gabion diversion to funnel the water into a 4,200-foot,
twelve-inch-diameter polyethylene pipeline. A 7,000-gallon storage tank is used to regulate the
system so that a large dam and associated reservoir are not necessary. Other physical features
include 8,800 feet of phone line, 4,600 feet of 7,200 kVA power cable, 8,600 feet of access trail,
and a 12-foot by 12-foot concrete block powerhouse. The plant operates at 445 feet of gross head
and runs year round delivering 100 kW to the Matanuska Electric Authority grid. The plant was
designed and built by Polarconsult at a cost of $2,000 per kW. Polarconsult President Earle
Ausman is the owner of the facility.
Project: Southfork Hydro Plant
Client: South Fork Construction
Reference Contact: Phyllis Janke, South Fork Construction, 694-4351
Engineering Budget: $80,000
Description
Currently under construction and permitting, this project involves feasibility, design, and
per mitting of a 1.2 MW hydroplant on the south fork of Eagle River.
The South Fork Hydro project is a run-of-river plant with a capacity of 1,200 kW. Scheduled to
be completed in 2009, the project will use water from the South Fork of Eagle River which drains
a 26-square-mile area. The project will divert 53 cfs from the South Fork. The elevation of the
intake pool is 1,180 feet and the elevation of the draft tube pool where the turbines discharge is
803 feet for a gross head of 377 feet. The pipe will be 32-inch, SDR 32.5 high density
polyethylene pipe (HDPE). About 3,175 feet from the intake, the pipe will change to SDR 26.
This HDPE pipe continues for the next 175 feet where it transitions to 300 feet of 30-inch steel
pipe. There will be four 300 kW turbine-generator sets. One turbine will be a Pelton wheel with
4 jets which will turn at 1200 rpm. The turbine will drive a 300 kW induction generator. This
unit will be used to operate at all of the intermediate flows as it is an excellent partial load device.
The other 3 units will be pump-turbines which are centrifugal pumps run as turbines. They will
be vertical assemblies and will turn at 1800 rpm.
REPRESENTATIVE PROJECTS - HYDROELECTRIC
5
SELECTED PROJECT LIST
In addition to the projects listed under Selected Project Profiles, Polarconsult has performed
numerous feasibility studies and designs as the following list indicates.
Job Name Client Year
Knutson Creek Hydro Feasibility Study Pedro Bay Tribal Council 2009-10
Packer’s Creek Hydro Design and Permitting Chignik Lagoon Power Utility 2009-10
Burro Creek Hydro Study Burro Creek Holdings, LLC 2009-10
Old Harbor FERC Licensing Alaska Village Electric Cooperative, Inc. 2009-10
Indian River Hydro Feasibility Study, Conceptual
Design and Permitting City of Tenakee Springs 2009-10
Elfin Cove Reconnaissance and Feasibility Study Community of Elfin Cove 2009-10
Pedro Bay Reconnaissance Study Pedro Bay Tribal Council 2009
Pelican Hydroelectric Upgrade Design Alaska Energy & Engineering, Inc. 2008-10
Fourth of July Creek Reconnaissance Study Independence Power, LLC 2008
Glacier Fork Hydro Reconnaissance Study Glacier Fork Hydro, LLC 2008
Pelican Hydroelectric Retrofit Alaska Energy Authority 2007
Archangel Creek Hydro Jill Reese Investments & Brokerage 2007
O'Brien Creek Recon naissance Survey Alaska Energy Authority 2007
Fishhook Hydroelectric Project Fishhook Renewable Energy, LLC 2007
Allison Lake Hydro Project Green Power Development, LLC 2007
Atka Hydro Cost Estimate Alaska Energy Authority 2007
Chitina Conceptual Design Alaska Energy Authority 2006
Kasidaya (Otter) Creek Intake Alaska Power & Telephone Company 2006
Larsen Bay Alaska Energy Authority 2006
Chuniisax Hydro Phase 3 Alaska Energy Authority 2006
Chignik Bay Scoping Field Trip Alaska Energy Authority 2005
Atka Hydro Design Changes and Inspection Alaska Energy Authority 2005
Larsen Bay Turbine Repair City of Larsen Bay 2005
Old Harbor Archiving Alaska Village Electric Cooperative, Inc. 2005
Chignik Dam Inspection Norquest Seafoods Inc 2004
Larsen Bay Hydroelectric Upgrade Alaska Energy Authority 2004
Chignik Stream Gauge Installation Alaska Energy Authority 2004
Atka Revisions Alaska Energy Authority 2004
Chignik Relicense Trident Seafoods 2003
Atka Hydro Design City of Atka 2003
Old Harbor Project Review Alaska Energy Authority 2002
Atka Hydro F&G City of Atka 2002
Scammon Stream Gauging Alaska Village Electric Cooperative, Inc. 2002
Old Harbor - Alternate Powerhouse Location Alaska Village Electric Cooperative, Inc. 2002
Old Harbor Project Comparison Alaska Village Electric Cooperative, Inc. 2001
Pelican Penstock Design Pelican Seafoods 2001
Old Harbor Hydro Project - Design Alaska Village Electric Cooperative, Inc. 2000
Old Harbor Hydro Project - FERC Licensing Alaska Village Electric Cooperative, Inc. 1999
Chignik Dam Survey Norquest Seafoods Inc 1999
Southfork Hydro Plant South Fork Construction 1998
REPRESENTATIVE PROJECTS - HYDROELECTRIC
6
Job Name Client Year
Lace Hydro Lace River Hydro, LLC 1997
Atka Hydro Investigation City of Atka 1996
Chignik Lagoon Hydro Study Chignik Lagoon 1995
Old Harbor Hydropower Feasibility Study Alaska Village Electric Cooperative, Inc. 1995
Terror Lake desander Tango Construction Co 1994
Tenakee Springs/Indian River Hydro City of Tenakee Springs 1993
Pelican Seafoods Hydroelectric Renovation Pelican Seafoods 1993
Angoon Hydroelectric Investigation Alaska Energy Authority 1992
Humpback Creek Hydroelectric Cordova Electric 1992
Snyder Falls Hydroelectric Study Earl Ellis & Associates 1990
McRobert’s Creek Hydroelectric Project Earle Ausman 1990
Larsen Bay Hydroelectric Plant City of Larsen Bay 1990
Snettisham Hydroelectric Project US Army Corps of Engineers, Alaska District 1989
Chitina Micro Hydro Project Chitina Village Council 1989
Burnett Inlet Hydroelectric Plant Design Alaska Aquaculture 1988
Ouzinkie Hydroelectric Plant City of Ouzinkie 1986
In addition, Polarconsult’s project team has extensive experience with design and force account
construction of many types of rural projects in addition to hydro. These include utility design
and construction management of water, sewer, and electrical projects. Much of this work was
performed for the City of St. Paul, and our experience extends to many other communities
throughout Alaska as well. It is important to emphasize that most of the work is performed by
force account using local labor and other resources.
Polarconsult believes it is important to have people build their own projects so they can operate
and repair them. It is also important to make them economical and keep the maximum amount of
money in the community.
Renewable Energy Fund
Grant Application Round IV
Elfin Cove Hydroelectric Project – Design and Permitting
AEA11-005 Grant Application ATTACHMENTS 9/14/2010
ATTACHMENT B – COST WORKSHEET
Renewable Energy Fund Round 4
Project Cost/Benefit Worksheet
RFA AEA11-005 Application Cost Worksheet Page 1 7-21-10
Please note that some fields might not be applicable for all technologies or all project
phases. The level of information detail varies according to phase requirements.
1. Renewable Energy Source
The Applicant should demonstrate that the renewable energy resource is available on a
sustainable basis.
Annual average resource availability. 716,000 kWh
Unit depends on project type (e.g. windspeed, hydropower output, biomasss fuel)
2. Existing Energy Generation and Usage
a) Basic configuration (if system is part of the Railbelt1 grid, leave this section blank)
i. Number of generators/boilers/other 3
ii. Rated capacity of generators/boilers/other 67 kW, 101 kW, 179 kW
iii. Generator/boilers/other type Diesel generators
iv. Age of generators/boilers/other 3 years old (new power plant, 2007)
v. Efficiency of generators/boilers/other Net powerplant efficiency 12.5 kWh/gallon
(per PCE data, 2008-2010)
b) Annual O&M cost (if system is part of the Railbelt grid, leave this section blank)
i. Annual O&M cost for labor FY 09 $21,650
ii. Annual O&M cost for non-labor FY 09 $165,221 (90% of this amount is fuel)
c) Annual electricity production and fuel usage (fill in as applicable) (if system is part of the
Railbelt grid, leave this section blank)
i. Electricity [kWh] 340,000 kWh
ii. Fuel usage
Diesel [gal] 31,500 gal
Other none
iii. Peak Load 240 kW
iv. Average Load 50 kW
v. Minimum Load 20 kW
vi. Efficiency Net utility efficiency approx 11 kWh per gallon (per PCE data, 2008-2010)
vii. Future trends Likely flat with diesels, increasing with hydro.
d) Annual heating fuel usage (fill in as applicable)
i. Diesel [gal or MMBtu] Unknown
ii. Electricity [kWh] Included in utility numbers
iii. Propane [gal or MMBtu] Unknown
iv. Coal [tons or MMBtu] Zero
v. Wood [cords, green tons, dry tons] Unknown
vi. Other Unknown
1 The Railbelt grid connects all customers of Chugach Electric Association, Homer Electric Association, Golden Valley Electric
Association, the City of Seward Electric Department, Matanuska Electric Association and Anchorage Municipal Light and Power.
Renewable Energy Fund Round 4
Project Cost/Benefit Worksheet
RFA AEA11-005 Application Cost Worksheet Page 2 7-21-10
3. Proposed System Design Capacity and Fuel Usage
(Include any projections for continued use of non-renewable fuels)
a) Proposed renewable capacity
(Wind, Hydro, Biomass, other)
[kW or MMBtu/hr]
200 kW total hydro capacity
50 kW run-of-river project and 150 kW storage project.
b) Proposed annual electricity or heat production (fill in as applicable)
i. Electricity [kWh] 716,000 kWh
ii. Heat [MMBtu] -
c) Proposed annual fuel usage (fill in as applicable)
i. Propane [gal or MMBtu] -
ii. Coal [tons or MMBtu] -
iii. Wood [cords, green tons, dry tons] -
iv. Other -
4. Project Cost
a) Total capital cost of new system $2,561,000
b) Development cost $395,000
c) Annual O&M cost of new system $17,300
d) Annual fuel cost zero
5. Project Benefits
a) Amount of fuel displaced for
i. Electricity 27,400 gal
ii. Heat 8,300 gal
iii. Transportation -
b) Current price of displaced fuel $4.00 per gal (actual price, 2010)
$3.99 per gal (2010 AEA model price for heating fuel – used
for benefits calculations)
c) Other economic benefits Value of other economic benefits, such as carbon taxes, are
included in AEA’s fuel cost projections.
d) Alaska public benefits No quantifiable benefits. Numerous indirect and intangible
benefits.
6. Power Purchase/Sales Price
a) Price for power purchase/sale Est. retail utility rate with the project is $0.12 to 0.64 per kWh
7. Project Analysis
a) Basic Economic Analysis
Project benefit/cost ratio $4.02M / $3.10M = 1.30
Payback (years) $3.10M / $162,435 = 19.1 years
Renewable Energy Fund
Grant Application Round IV
Elfin Cove Hydroelectric Project – Design and Permitting
AEA11-005 Grant Application ATTACHMENTS 9/14/2010
ATTACHMENT C – GRANT BUDGET FORM
Renewable Energy Fund Grant Round IVGrant Budget Form8/30/2010 Elfin Cove Hydroelectric Project - Design and PermittingRE- Fund Grantee Matching Source of Matching Funds: Grant Funds FundsCash/In-kind/Federal Grants/Other State Grants/Other1. FERC LICENSING12/31/2013 $228,581 $31,619 Cash and In-Kind Services $260,200 1.1 FERC Licensing Process" $140,733 $19,467 Cash and In-Kind Services $160,200 1.2 State Permits" $17,570 $2,430 Cash and In-Kind Services $20,000 1.3 COE and other Federal Permits, Land Authorizations " $17,570 $2,430 Cash and In-Kind Services $20,000 1.4 Environmental & Technical Studies " $52,709 $7,291 Cash and In-Kind Services $60,0002. FINAL DESIGN12/31/2013 $118,419 $16,381 Cash and In-Kind Services $134,800 2.1 Project Design" $92,065 $12,735 Cash and In-Kind Services $104,800 2.2 Engineer's Cost Estimate" $8,785 $1,215 Cash and In-Kind Services $10,000 2.3 Updated economic and financial analysis " $8,785 $1,215 Cash and In-Kind Services $10,000 2.4 Final business and operational plan " $8,785 $1,215 Cash and In-Kind Services $10,000TOTALS$347,000 $48,000$395,000Direct Labor & Benefits$0 $48,000 Cash and In-Kind Services $48,000Travel & Per Diem$0 $0$0Equipment$0 $0$0Materials & Supplies$0 $0$0Contractual Services$347,000 $0$347,000Construction Services$0 $0$0Other$0 $0$0 TOTALS$347,000 $48,000$395,000TASK TOTALSBudget Categories:Sub-Task TotalsMilestone or TaskAnticipated Completion Date
Renewable Energy Fund
Grant Application Round IV
Elfin Cove Hydroelectric Project – Design and Permitting
AEA11-005 Grant Application ATTACHMENTS 9/14/2010
ATTACHMENT D – LOCAL SUPPORT
To Whom It May Concern:
This letter is in support of the Elfin Cove Community Hydro-electric grant
application.
The Cove Lodge is a destination lodge and charter operation that has
been in Elfin Cove since 1992. I have been an owner since 1994. During
my tenure as a business owner in Elfin Cove there has been continuous
support for developing renewable electrical energy using hydro
generation. Reducing the high cost of energy while reducing dependence
on fossil fuels is seen as not only an environmental responsibility but is
essential for any sustainable economic development.
Our business is dependent on a dependable, cost effective source of
energy. This hydro project will provide a basis for development not only
for our business but also for new and expanding businesses.
The proposed project is well researched. The feasibility study clearly
points to a project that will have long term returns for the community and
state.
We have unconditional support for this grant application.
Sincerely,
Gordy Wrobel, CEO
P.O. Box 17
Elfin Cove, AK
99825
800-382-3847
907-239-2221
www.covelodge.com
Renewable Energy Fund
Grant Application Round IV
Elfin Cove Hydroelectric Project – Design and Permitting
AEA11-005 Grant Application ATTACHMENTS 9/14/2010
ATTACHMENT E – ELECTRONIC COPY OF APPLICATION
Renewable Energy Fund
Grant Application Round IV
Elfin Cove Hydroelectric Project – Design and Permitting
AEA11-005 Grant Application ATTACHMENTS 9/14/2010
ATTACHMENT F – AUTHORIZED SIGNERS FORM
Renewable Energy Fund
Grant Application Round IV
Elfin Cove Hydroelectric Project – Design and Permitting
AEA11-005 Grant Application ATTACHMENTS 9/14/2010
ATTACHMENT G – GOVERNING BODY RESOLUTION AUTHORIZING APPLICATION
Renewable Energy Fund
Grant Application Round IV
Elfin Cove Hydroelectric Project – Design and Permitting
AEA11-005 Grant Application ATTACHMENTS 9/14/2010
ATTACHMENT I – MAPS AND SUPPLEMENTAL INFORMATION
Renewable Energy Fund
Grant Application Round IV
Elfin Cove Hydroelectric Project – Design and Permitting
AEA11 -005 Grant Application ATTACHMENTS 9/14/2010
PROJECT LOCATION MAP
Renewable Energy Fund
Grant Application Round IV
Elfin Cove Hydroelectric Project – Design and Permitting
AEA11 -005 Grant Application ATTACHMENTS 9/14/2010
PROPOSED PROJECT CONFIGURATION
AERIAL IMAGERY DATED AUGUST 11,
1990. OBTAINED FROM ELFIN COVE
FILES, COLLECTED BY USFS.
polarconsult alaska, inc.
1503 West 33rd Avenue, Suite 310
Anchorage, Alaska 99503-3638
Phone: (907) 258-2420
FAX: (907) 258-2419
T RIP R EPORT
100915-TRIPREPORT.DOC
DATE: 9/15/2010
TO: Jane Button, Non-Profit Community of Elfin Cove (CEC)
FROM: Joel Groves, P.E.
RE: August 9 to 14 Trip Report
CC: Project File
PURPOSE AND BACKGROUND
The CEC retained Polarconsult Alaska, Inc. (PCA) to conduct reconnaissance and feasibility
studies of hydropower resources for Elfin Cove in 2009. PCA provided CEC the completed
reconnaissance study in March 2010, and CEC selected a project at Crooked Creek and Jim’s
Lake for feasibility assessment in May 2010. This field visit was performed to collect additional
field data necessary to complete a feasibility study of a hydroelectric project at Crooked Creek
and Jim’s Lake.
FIELD ACTIVITIES
Polarconsult engineer Joel D. Groves, P.E. mobilized from Anchorage to Elfin Cove on August
9th, 2010. Primary objectives of the trip were:
1. Perform maintenance on the stream gauges, including downloading data, upgrading
power supplies, and measuring stream flows.
2. Collect more detailed data at the diversion sites on Crooked Creek and Jim’s Lake,
penstock routes, and powerhouse sites.
SCHEDULE
The feasibility study will be completed and a draft issued to CEC for review and comment by
November 1st. Polarconsult will finalize the feasibility study 30 days after receipt of CEC
comments.
ACTION ITEMS
Stream Gauging Maintenance
1. The gauging stations at Roy’s Creek and Crooked Creek will need new power supplies
before this winter. Because of inadequate ambient light at the gauge locations, solar
power has been excluded as a suitable solution. Polarconsult will provide new batteries
for the stations.
2. High flow measurements at all three gauging stations would be useful to improve station
calibrations. Polarconsult has furnished the CEC with a HOBO conductivity data logger
and sufficient salt to complete these measurements. Polarconsult will coordinate with
CEC to complete these measurements this October.
3. The Roy’s Creek desiccant canister needs to be refreshed. This should occur before
winter.
POLARCONSULT TRIP REPORT ELFIN COVE HYDRO FEASIBILITY STUDY
SEPTEMBER 15, 2010 PAGE 2 OF 4
2008-10 Crooked Creek Stage Data
7.4
7.6
7.8
8.0
8.2
8.4
8.6
8.8
9.0
9.2
9.4
8/1/08 11/1/08 2/1/09 5/4/09 8/4/09 11/4/09 2/4/10 5/7/10 8/7/10
Measured Stage
Recorded Stage (2008-09)
Recorded Stage (2009-10)
STREAM GAUGES
Stream gauges are installed at the Crooked Creek intake site, Roy’s Creek intake site, and at the
outlet of Jim’s Lake. Stream flow measurements made this trip are summarized in Table 1.
Table 1: Flow Measurements
Date/Time Method Location Flow (cfs) Stage at Gauge
(ft)
8/10/10 10:35 Sudden salt dose Jim’s Lake - 15 yds below gauge 0.421 3.73
8/10/10 10:47 Sudden salt dose Jim’s Lake - at gauge 0.422 3.73
8/10/10 11:37 Sudden salt dose Crooked Creek - at gauge 2.41 7.62
8/10/10 12:17 Sudden salt dose Crooked Creek - 30 yds ab. gauge 2.25 7.62
8/13/10 11:30 Sudden salt dose Roy’s Creek - 10 yds below gauge 1.05 1.15
8/13/10 12:20 Sudden salt dose Roy’s Creek - at gauge 1.07 1.15
Crooked Creek Intake Site Gauge
The Crooked Creek gauge installation and pool where the gauge is inst alled appear unchanged
from the last Polarconsult visit in October 2009. Current flow measurements are summarized in
Table 1. The station was successfully downloaded.
The station is equipped with a Sutron Monitor-4 datalogger powered by 4 D-cell lithium thionyl
batteries. The current batteries will be exhausted in approximately January or February 2011. A
solar panel was tested during this visit, but received insufficient light to reliably power the data
logger. A seven Ah lead acid battery and regulator were installed in the data logger enclosure to
support future solar power, but the logger remains on the lithium batteries. New lithium batteries
will be shipped to Elfin Cove this fall. The desiccant canister inside the datalogger cabinet was
refreshed during this field visit. 2008 – 2010 stage data at the Crooked Creek gauging station is
presented in Figure 1. Stage-discharge curves and calculated flow data will be reported in the
feasibility study to be issued later this year.
Figure 1: Stage Data at Crooked Creek Gauging Station
POLARCONSULT TRIP REPORT ELFIN COVE HYDRO FEASIBILITY STUDY
SEPTEMBER 15, 2010 PAGE 3 OF 4
2008-10 Jim's Lake Stage Data
3.40
3.60
3.80
4.00
4.20
4.40
4.60
4.80
8/1/08 10/31/08 1/30/09 5/1/09 7/31/09 10/30/09 1/29/10 4/30/10 7/30/10
Recorded Stage
Recorded Stage
Measured Stage
Measured Stage
Jim’s Lake Outlet Gauge
The Jim’s Lake outlet gauge installation and pool where the gauge is installed appear unchanged
from the last Polarconsult visit in October 2009. Current flow measurements are summarized in
Table 1. The station was successfully downloaded.
The station is equipped with HOBO water pressure and barometric data loggers. These loggers
have 5 to 10 year battery lives, and have been in service for approximately 2 years. The
barometric data logger is installed in an enclosure with a large can of desiccant to help avoid
barometric datalogger problems during freezing weather. This desiccant appears to have
successfully prevented the cold weather problems experienced by the barometric datalogger in
the winter of 2008 – 2009. The desiccant was refreshed during this site visit. 2008 – 2010 stage
data at the Jim’s Lake outlet gauging station is presented in Figure 2. Stage-discharge curves
and calculated flow data will be reported in the feasibility study to be issued later this year.
Figure 2: Stage Data at Jim’s Lake Outlet Gauging Station
POLARCONSULT TRIP REPORT ELFIN COVE HYDRO FEASIBILITY STUDY
SEPTEMBER 15, 2010 PAGE 4 OF 4
2009-10 Roy's Creek Stage Data
1.0
1.2
1.4
1.6
1.8
2.0
2.2
2.4
10/1/09 11/1/09 12/2/09 1/2/10 2/2/10 3/5/10 4/5/10 5/6/10 6/6/10 7/7/10 8/7/10 9/7/10
Recorded Stage
Measured Stage
Roy’s Creek Intake Site Gauge
The Roy’s Creek gauge installation and pool where the gauge is installed appear unchanged from
the last Polarconsult visit in October 2009. Current flow measurements are summarized in Table
1. The station was successfully downloaded.
The station is equipped with a Sutron Monitor-4 datalogger powered by 4 D-cell lithium thionyl
batteries. The current batteries will be exhausted in approximately January or February 2011. A
solar panel was tested during this visit, but received insufficient light to reliably power the data
logger. A seven Ah lead acid battery and regulator were installed in the data logger enclosure to
support future solar power, but the logger remains on the lithium batteries. New lithium batteries
will be shipped to Elfin Cove this fall. The desiccant canister inside the datalogger cabinet was
refreshed during this field visit. 2008 – 2010 stage data at the Crooked Creek gauging station is
presented in Figure 3. Stage-discharge curves and calculated flow data will be reported in the
feasibility study to be issued later this year. The desiccant canister inside the datalogger cabinet
was not refreshed during this field visit.
Although the CEC selected the Crooked Creek / Jim’s Lake project for feasibility assessment,
Polarconsult will keep the Roy’s Creek gauge in service through the winter of 2010-11 in order
to collect an adequate period of record at this creek to support future consideration of this
resource. This data will be included as an appendix to the feasibility study.
Figure 3: Stage Data at Roy’s Creek Gauging Station
DATA COLLECTION
Mr. Groves, assisted by Jane Button, completed a survey of key project features in order to index
these project features relative to local land boundaries, sea level, and existing utility
infrastructure. This will improve the accuracy of information used for the feasibility study.
Concurrently, Mr. Groves reviewed prospective penstock routes and access routes from
tidewater up to the project as well as overland between the project and Elfin Cove.