WASHINGTON (AP) — A Maryland company has been chosen by more than 100 religious, community, labor and low-income housing groups in the Washington area that are joining forces to save money on electricity.

The groups met Tuesday and announced that they had selected Rockville-based Clean Currents, which had also won the previous contract.

The purchase was organized by Groundswell, a Washington-based nonprofit. Groundswell says the effort started last year with 11 institutions that cut power bills by 15 percent, saving hundreds of thousands of dollars while also buying cleaner energy.

Clean Currents President Gary Skulnik says the company is offering several options for the groups, and about three quarters are buying 100 percent wind power.

There are now 119 groups in the coalition, including a charter school, a mosque and a housing group.

(Copyright 2012 by The Associated Press. All Rights Reserved.)