Duke Energy Corp. today said it plans to store electricity generated at its Notrees wind power project in west Texas using an energy-storage system developed by Austin, Texas-based Xtreme Power.
In November 2009, Charlotte-based Duke announced plans to match a $22 million grant from the U.S. Department of Energy to install large-scale batteries capable of storing electricity produced by Notrees, a a 153-megawatt wind farm.
Xtreme Power will design, install and operate a 36-megawatt-capacity system at the wind farm. When complete, the battery-storage system will be one of the largest of its kind in the world, Duke said.
This system will store excess wind energy and discharge it whenever demand for electricity is highest, not just when wind turbine blades are turning, Duke said.
In addition to increasing the supply of renewable energy during periods of peak demand, Xtreme’s Dynamic Power Resource system will help stabilize the frequency of electricity traveling throughout the power grid, Duke said.
Duke expects the system to be in operation by late 2012.