Westar Energy is an investor owned electric utility headquartered in Topeka Kansas. Westar is the largest electric company in Kansas serving 685 000 residential commercial and industrial customers in the eastern third of the state. Westar Energy generates more than 27 000 000 megawatt-hours of electricity per year at its 12 power plants. Westar Energy service territory covers 10 130 square miles (26 200 km) in east and east-central Kansas.
Key person is William Moore.