I know there's a Google server farm in Walla Walla, OR and a Yahoo! server farm near Wenatchee, WA because of the cheap electricity out here - brought to you by hydro power. The major power companies out here, PGE, Pacific, and Puget Sound (Among others) are extremely interested in renewable energy, and Google getting involved in building windmills and solar panels is pretty smart. Especially considering, what I assume, are pretty significant the tax breaks at the local, state, and federal levels.