Walmart is erecting its first onsite large-scale wind turbine pilot project at its distribution center in Red Bluff, Calif. The 20-story turbine is expected to be operational this fall and will provide roughly one megawatt of power, or 15 to 20 percent of the distribution center’s yearly electrical use. Under a Power Purchase Agreement, Foundation Windpower will install, own, and operate the wind turbine, while Walmart will purchase the power produ...