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FAQs Oil- or Gas-Fired Combustion Turbines

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What is a combustion turbine?

A combustion turbine uses fuel oil or natural gas to heat compressed air, which then expands to drive a turbine-generator and produce electricity. Like hydroelectric plants, combustion turbines generally provide “peaking” power. Although they produce a small percentage of Duke Energy’s overall electric generation, combustion turbines are an important part of our flexible energy mix.