Green-Mart

Wal-Mart is planning to use solar panels at many of its stores. In the process, it will generate 150 megawatts of power. Wal-Mart is exploring the options of owning its solar energy systems, leasing them, or simply buying power from Wal-Mart roof panels owned by the solar company. In comparison, Google solar scheme would only generate 1.6 megawatts of power.

Read BusinessWeek for more : Wal-Mart: Let The Sun Shine In?