How It Works

Understanding Rolling Hills’ Role

As a peaking plant, Rolling Hills provides power quickly — in about 30 minutes — in times of high energy demand, such as hot or cold days. “Peakers” run intermittently but play important roles in reliable electric energy distribution.

The combined-cycle electric generating station, such as the one being developed at Rolling Hills, will be an efficient, flexible power generator able to provide baseload power.

Combined Cycle Plant


When operating as a combined-cycle facility, gas turbine-driven generators produce part of the plant’s power. Hot exhaust gases from the gas turbines heat water to become steam, which powers steam turbine-generator sets to generate more electricity. The result is both more power from the same amount of fuel and fewer emissions per megawatt of generation.