Xcel and SunPower are joining forces and plan to build the second largest photovoltaic solar generating plant in North America. The 17 MW plant would be built in Colorado according to a report by Dow Jones Newswires. Financing and permitting still need to be approved by the Colorado Public Utilities Commission before the project can move forward. If approved, the estimated cost is between $70 and $90 million, and the plant could be online as early as 2010