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Energy Services Department
811 East Red Hills Parkway
St. George, UT 84770
(435) 627-4800

To report water and/or power problems please call (435) 627-4800.

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Red Rock Power Plant
Gunlock Hydro Plant
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Gunlock Hydro Plant
Gunlock Hydro Plant
The Gunlock Hydro Plant was put in service in 1987 and is located 15 miles West of St. George, 200 yards down stream from Gunlock Reservoir. It has a twin vertical mounted Francis Turbine configuration. The 2 Induction motors turn 1200 RPM and produce a combined total of 372 KW. The facility is primarily used for irrigation and the City gleans the electric resource from water passing through it. Through SCADA the dispatcher regulates the amount of irrigation water measured in Cubic Feet per Second (CFS). The maximum flow is 52.4 CFS which equal 23,517.1 gallons per minute at 30 PSI. Depending on the water supply, the season usually begins in January and ends in October.
Click on picture for larger image

Transformer and dip
pole in foreground.

Francis turbines and
wiket gate housing

Control panel

Tail race showing water
flow exit through turbine
Customer Service Survey