Walmart will be installing 14,000 PV panels on a 1,000,000-sq.-feet building and parking canopies at its Buckeye, Ariz., distribution center near Phoenix. The installation will provide up to 30% of the center's energy needs. The solar panels at the distribution center alone will generate up to 5.3 million kilowatt hours of renewable energy per year, the equivalent of powering more than 400 homes. This is the company's second distribution center solar project in Arizona, coming just over a year after 2MW project in Casa Grande, Ariz., that used a combination of ground-mounted and solar-shaded parking canopy structures. Since launching its solar pilot program in May 2007, Walmart has more than 180 renewable energy projects in operation and development around the world, generating enough energy to power 78,000 American homes annually.