Xtreme Power, a developer and manufacturer of large-scale energy-storage and power systems, has commissioned a 15 MW dynamic power resource (DPR) system on First Wind's 30 MW Kahuku wind project during a formal dedication ceremony at Oahu, Hawaii.
The project is also the first to be completed under the Department of Energy's loan-guarantee program, which supplied $117 million for construction in July 2010.
At the Kahuku site, the DPR digitally smoothes the wind farm's output to +/- 1 MW per minute by rapidly absorbing or releasing power as needed so that Hawaiian Electric Co.'s grid system and local customers are shielded from disturbances due to varying winds at the Kahuku wind farm.
The site is unique in its transmission challenges and required a storage solution in order to avoid costly transmission upgrades and project delays, according to the company. Xtreme Power also designed the system with the ability to double its storage capabilities in the same square footage, should First Wind require additional capacity in the future.
The Kahuku project is one of three collaborations between Xtreme Power and First Wind. DPRs are also operating on First Wind's Kaheawa project and will be integral to the Kaheawa II wind project, both on the island of Maui.
SOURCE: Xtreme Power