What is a combined cycle power plant?

A combined cycle power plant utilizes both gas and steam turbines to maximize efficiency, which makes it a highly effective means of generating electricity. In this setup, the gas turbine first operates, converting the energy from natural gas into electricity. The exhaust heat generated from the gas turbine is then captured and used to produce steam, which drives a steam turbine to generate additional electricity. This integration of gas and steam turbines allows for a more efficient conversion process compared to using either type of turbine alone, as it effectively utilizes waste heat that would otherwise be lost.

By harnessing the heat from the gas turbine's exhaust, combined cycle plants can achieve overall efficiencies often exceeding 60%, significantly improving the energy output of the facility. This dual-phase approach not only optimizes energy consumption but also reduces greenhouse gas emissions compared to traditional power plants that rely on a single form of energy conversion.