Hyatt Pumping-Generating Plant Turbine and Pump-Turbine Refurbishment
Hyatt Power Plant is an underground, hydroelectric, pumping-generating facility constructed in the bedrock below Lake Oroville. A cavern the size of two football fields was dug out to house the facility. Construction of the plant began in 1964 and was completed in 1967. The power plant went online in 1969 with the capacity to produce 645 megawatts from its three turbines and three reversible pump-turbines, enough electricity to supply about 600,000 homes.