ITC Great Plains, in conjunction with Sunflower Electric Power and Mid-Kansas Electric, placed the V-Plan high-voltage electric transmission line and the Clark County, Ironwood and Spearville substations into service in western Kansas.
Duke Energy Renewables, part of Duke Energy's Commercial Businesses, completed its 36-MW energy storage and power management system at its Notrees Windpower Project in west Texas. The system completed testing and became fully operational in December 2012. Xtreme Power designed and installed the 36-MW capacity Dynamic Power Resource at Notrees and will continue to operate the system. In addition to increasing the supply of renewable energy during periods of peak demand, the system will help stabilize the frequency of electricity traveling throughout the power grid.