What is the Hook Canyon Pump Project

 

Hook Canyon is a small canyon on the east side of Bear Lake in Utah’s Rich County. A company called Symbiotics LLC is propsing a hydroelectric pump project for the area. The pumped storage project would pump water from Bear Lake into a newly constructed reservoir on the eastern bench above the Lake in Hook Canyon. Water would be exchanged between Bear Lake and the new reservior using an underground shaft connected to an underwater intake and tailrace structure in Bear Lake. A power plant houseing 14 reversible pump-turbines will be constructed underground near the base of the shaft.(Click to view a diagram of the structure.) This pumping and back flow will exchange of up to 15,400 ac-ft of water, (or 5 billion gallons, that’s a million gallons, five thousand times!) This water exchange will cause the elevation of Bear Lake to fluctuate about 3 inches daily.

This project is NOT renewable energy.  It will use more power than it generates.  It will be a net loss to the power grid.  It will consume 4,057 GWh of electricity to generate 3,245 GWh annually.  The only reason it is economically feasible is that water is pumped up at night when demand for electricity is low, and then run down to generate electricity during the day when demand is higher. 

This is power arbitrage, not power generation.  Since coal burns just as well at night, the power company can generate electricity day or night at the same cost. But they can’t sell the power at night because you only have your refrigerator and alarm clock running. But a coal fired power plant is enormous, and can’t just start up and shut down to meet this fluctuating power demand.  Pumped power projects are a way of storing the energy that can be generated at night for use during peak day hours.  They should not be confused with true renewable energy sources like hydroelectric, wind and solar power. More...

 

Just the Facts

 

Some quick facts about the Hook Canyon Pump Storage Project

(from the PAD and SD1 FERC P-12707) printable PDF

The project will generate 3,245,872 MWh

annually and has a generating capacity of 1,120 MW.

It will consume an estimated 4,057,340 MWh to (pump the water up)

for a net energy loss of 811,468 MWh annually.

Upper Reservoir
• Dam will be 270 ft. high (water will be approx. 240 ft. deep when at 19,510 AF capacity)
• Maximum storage capacity of 21,857 acre feet of water
• Useable storage is 19,510 acre feet. Max. available volume is 15,400 AF
• Hydraulic head is 940 ft. at max reservoir elevation and 825 ft. at minimum elevation
• Surface area of 225 acres
• Proposed 20 ft. of water as a temperature buffer to minimize temperature impacts to Bear Lake

Emergency spillway will be excavated to the south to flow down South Eden Canyon
• Max. capacity 2000 cfs
• 30 ft. wide on a 5 degree slope

Access to reservoir and emergency spillway is via South Eden road and a new 3.5 mi. long road

Powerhouse
• Underground
• 14 reversible pump turbines

Operation
• 10 hours of power generation (8 normal + 2 hrs. of reserve)
• Flow rate at each turbine is between 1,265 cfs and 1,786 cfs (max. for 14 would be 25,004 cfs)
• Average flow rate is 18,636 cfs
• 15,400 acre feet will be exchanged daily- that is 5 billion gallons. In other words, a million gallons, five thousand times
• Estimated daily fluctuation of Bear Lake is 2.64 to 3.18 inches

Construction
• A 40 ft. diameter vertical shaft 700 ft. long from the bottom of the reservoir
• Connecting to a 40 ft. diameter tunnel 3000 ft. long ending at the powerhouse
• Then a 2500 ft. long 30 ft. diameter tailrace tube to discharge the water into Bear Lake
• Discharges water into Bear Lake at a point where the lake depth is about  120 feet deep

Transmission Lines
• 9 miles of 230 kv transmission lines connecting in Idaho to PacifiCorp’s existing grid • Two 8-acre substations

 

Download Documents

 

Documents you can dowload if you want all the details
Reference Document Comments
Pre-Application Document (PAD)
entire document
This is a whopping 7MB .pdf document. It is big, but a must read if you want to know all the details (and be knowledgeable).
Pre-Application Document (PAD)
(no appendices)
Almost as big but without engineer drawings, lists of potentially affected plants and all the correspondence that has occured
Scoping Document 1 (SD1) The initiation of the process to insure all pertinent issues are identified and analyzed and that the proposed Environmental Impact Statement (EIS) is thorough and balanced.
FERC information (Federal Energy Reglatory Commission) How to get information from FERC and file your comments with FERC
Symbiotics, LLC the Applicants website
Quick Links to FERC

 

Links for Citizens to Monitor and Comment in the FERC process

QUICK SUBMIT (No FERC registration necessary)

Official Information about Hook Canyon Project on the FERC website

Sign up to automatically get everything sent to FERC on Hook Canyon

Submit Your Comments Electronically

  • Click HERE for Quick Sumbit. (no registration necessary)
    • complete the form provided
  • Click HERE for login (If registered)
    • Hydrdo Washington DC
    • ILP (Integrated licensing) Submission
    • ILP Comments or Study Request
    • >NEXT
    • Enter Docket P-12707
    • Enter Comment
    • >Send Comment
  • Your comments MUST state that this is in response to the “Hook Canyon Hydroelectric Project FERC P-12707”


 



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