BELLEVUE, Wash. (AP) — Puget Sound Energy has purchased a natural gas-fired power plant near Ferndale that generates enough electricity to serve about 200,000 homes.

The Bellevue-based utility did not disclose the price of the purchase from Tenaska Washington Partners. PSE had been buying the plant's power output from Tenaska.

Puget Sound Energy owns three other natural-gas fired plants in Whatcom County. Spokesman Roger Thompson says hydropower still makes up the utility's largest supply segment — about a third, from PSE's own dams and purchases from other utilities.

Puget Sound Energy is the largest private utility in Washington with 1.1 million electricity customers and 750,000 natural gas customers in 11 counties.