RPT-GM powers warehouse roof with solar energy

DETROIT, Sept 13 (Reuters) - General Motors Corp GM.N on Thursday said it will add one of the largest solar power installations in corporate use at a warehouse in California, generating half the electricity needed to run the facility.

The automaker said it has partnered with a subsidiary of Constellation Energy (CEG.N), which will design, build, own and and operate the solar array on the roof of a GM service and parts operation warehouse in Fontana, California.

The solar powered roof, which will become operational in December, will feed enough extra electricity back to the grid to power more than 300 homes for a year, GM said in a statement.

"The new solar arrays on our rooftops are reducing our energy costs and carbon footprint, while providing green energy to the community," Elizabeth Lowery, GM vice president of environment, energy and safety policy, said.