The regional power-grid operator Southwest Power Pool has quietly become a leader in renewable energy, and recent improvements to its marketplace signal an opportunity for corporate buyers. With an estimated 19 gigawatts of planned wind capacity additions in SPP territory (more than three times the current total of corporate off-take deals), corporate buyers will have plenty of projects to choose from. If the Mountain West Transmission Group decides to join the SPP footprint, customers with load in Colorado or Wyoming could gain access to all of that wind generation too.