Updated: 1/2/2007; 11:59:31 PM.

Future energy
Renewables, fuel cells, hydrogen, and efficiency

daily link  Wednesday, December 27, 2006

Wal-Mart's Solar Energy Vision:  Joel Mackower reports on Wal-Mart's "recently issued RFP, or request for proposal, to install solar energy systems on its stores in five states -- the largest procurement of solar ever proposed. Bids are due on January 5 .. Wal-Mart intends to notify the winner of the contract on February 28. ..

The confidential RFP document is part of the company's stated commitment "to reduce our overall greenhouse gas emissions by 20 percent over the next eight years" and to "design a store that will use 30% less energy and produce 30% fewer greenhouse gas emissions than our 2005 design within the next 3 years," according to the RFP. ..

Wal-Mart says it will begin installing solar on its stores in five U.S. states: California, Colorado, Connecticut, Hawaii, and New Jersey. The company anticipates that "that only a portion of the stores in each state will be physically and economically suitable for solar installations," according to the RFP. It calls for bids for projects to be carried out during 2007, but is asking bidders for "expansion or build-out plans, including projected prices and costs, over the next five years." ..

What's the impact of all this? Wal-Mart doesn't mention a specific purchase size, but my sources tell me that the company could put solar on as many as 340 stores in the next few years. Assuming that each store utilized about 300 kilowatts of solar panels (it could be as much as 500 kilowatts), we're talking roughly 100 megawatts of solar. To put that into perspective, the solar system currently being installed at Google headquarters in California -- the largest single corporate solar installation in history -- is 1.6 MW, about 1/60th the size.  Of course, it's unclear whether Wal-Mart will install solar in all of those locations. The company could look at the bidders' numbers and decide to install solar at only a handful of stores -- or none at all.

Assuming it moves forward with even a portion of its plans, Wal-Mart's move is significant, and historic. While a growing number of companies are staking their claim at being "carbon neutral" by purchasing power from developers of far-off wind farms or other large-scale installations, or have installed (often with much fanfare) solar panels on a single showcase facility, no one has yet made a long-term commitment to "alternative sources of energy at competitive prices and in a form that is replicable among multiple sites and multiple building formats," as Wal-Mart puts it."  11:41:31 PM  permalink  

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Copyright 2007 © Ken Novak.
Last update: 1/2/2007; 11:59:31 PM.