Wait, Wal-Mart?!?

As part of its well-publicized effort to go green, retail giant Wal-Mart has announced plans to launch a pilot project that will install solar arrays at 22 sites in California and Hawaii.

According to the Bentonville, Ark.-based company, which operates more than 4,000 outlets nationwide, the solar arrays will provide up to 30 percent of the power at 21 facilities, including Sam’s Club stores, along with a distribution center.

The company did not announce the specific locations of the projects. Three solar-power providers have contracted with the retailer. Once the solar arrays are up and running, they reportedly will help reduce greenhouse-gas emissions by up to 10,000 metric tons per year.