in News Departments > Projects & Contracts
print the content item

Xcel Energy will begin testing a 1 MW battery storage technology to demonstrate its ability to store wind energy and move it to the electricity grid when needed.

"Energy storage is key to expanding the use of renewable energy," says Dick Kelly, Xcel Energy chairman, president and CEO. "This technology has the potential to reduce the impact caused by the variability and limited predictability of wind energy generation. As the nation's leader in distributing wind energy, this will be very important to both us and our customers."

Xcel Energy has signed a contract to purchase a battery from NGK Insulators Ltd. that will be an integral part of a project. The sodium-sulfur battery is commercially available, and versions of this technology are already being used in Japan and in a few U.S. applications. According to Xcel Energy, this is the first U.S. application of the battery as a direct wind energy storage device.

The 20 50 kW battery modules will be roughly the size of two semi trailers and weigh approximately 80 tons. They will be able to store about 7.2 MW hours of electricity, with a charge/discharge capacity of 1 MW.

Testing will take place in Luverne, Minn., with the battery installation beginning this spring adjacent and connected to a nearby 11 MW wind farm owned by Minwind Energy LLC. S&C Electric Co. will install the battery and all associated interconnection components. The battery is expected to go online in October.

Partners in the project with Xcel Energy include the University of Minnesota, the National Renewable Energy Laboratory and the Great Plains Institute.


Trachte Inc._id1770
Latest Top Stories

Canadian Wind Industry Urges For More Federal Support

The Canadian Wind Energy Association says the country's federal government, once a big industry supporter, should again back wind power.


Wind And Solar Helped California Grid During Challenging Summer

According to the California Independent System Operator, the state suffered from heat waves and drought this year, and wind power played a "significant role" in keeping the lights on.


Recapping The Wind Industry's Third-Quarter Deals

Mercom Capital Group recaps investment and merger and acquisition activity during July, August and September.


Yearly Installed Capacity Figures Already Beat 2013 Numbers, More Wind On The Way: AWEA

While the American Wind Energy Association (AWEA) lobbies Congress to extend the production tax credit, the association notes wind projects now under construction signal a vibrant 2015.


Yahoo Inks Contract To Buy Kansas Wind Power

The Internet company plans to log in to the Alexander wind project, which is being built by community developer OwnEnergy.

BG 2015DblBox_id2032
Renewable NRG_id1934
Hybrid Energy Innovations 2015
Canwea_id1984