SunEdison, Imergy to supply 5-MW battery system in Ontario

SunEdison (NYSE: SUNE) has signed a 10-year agreement with the Ontario Independent Electricity System Operator (IESO) to supply 5 MW—20 megawatt-hours—of battery storage to the province.

In addition to leveraging the battery’s storage capability, the IESO intends to use data from this energy storage project to analyze how storage can be used to smooth the power flow from wind and solar, defer expensive system upgrades, and ultimately shape the future of its grid, said SunEdison in a Dec. 10 statement. This project is SunEdison’s first commercial large scale grid-connected energy storage project, and is one of the first commercial applications of flow batteries in Canada.

“By integrating energy storage into their grid, the Ontario IESO gains access to a powerful new tool that has the potential to transform how it operates the power system,” said Tim Derrick, SunEdison’s general manager of Advanced Solutions. “Batteries can be used to reduce grid congestion, smooth out power flow from solar and wind sources, and may help the IESO defer or avoid expensive upgrades to the grid.”

“SunEdison’s energy storage project is one of several projects that will support reliability in Ontario by providing much needed quick response capacity and operational flexibility,” said Bruce Campbell, Ontario IESO’s president and chief executive officer.

SunEdison is working with flow battery technology leader Imergy to deliver the project. Imergy’s vanadium redox flow battery technology provides a cost effective and durable way to store energy for hours at a time.

“The Ontario IESO is the real winner in this latest collaboration between SunEdison and Imergy,” said Bill Watkins, Imergy’s chief executive officer. “By combining SunEdison’s renewable energy project development expertise with Imergy’s vanadium flow battery technology, Ontario will get a durable and efficient energy storage system.

SunEdison plans to start construction of the project during the first half of 2017, with completion targeted for later that year. Operation and maintenance of the battery systems will be performed by SunEdison Services, which provides global asset management, monitoring and reporting services.

SunEdison develops, finances, installs, owns and operates renewable power plants, delivering predictably priced electricity to its residential, commercial, government and utility customers. SunEdison is one of the world’s largest renewable energy asset managers and provides customers with asset management, operations and maintenance, monitoring and reporting services. Corporate headquarters are in the United States with additional offices and technology manufacturing around the world.

Imergy Power Systems is a leader in stationary energy storage solutions using innovative vanadium redox flow battery technology. Its proven Energy Storage Platform (ESP) provides a total solution to reduce energy cost and optimize renewable power generation while improving overall power reliability. Imergy Power Systems is headquartered in Fremont, California, with additional operations in Europe, Asia, and the Americas.

About Barry Cassell 20414 Articles
Barry Cassell is Chief Analyst for GenerationHub covering coal and emission controls issues, projects and policy. He has covered the coal and power generation industry for more than 24 years, beginning in November 2011 at GenerationHub and prior to that as editor of SNL Energy’s Coal Report. He was formerly with Coal Outlook for 15 years as the publication’s editor and contributing writer, and prior to that he was editor of Coal & Synfuels Technology and associate editor of The Energy Report. He has a bachelor’s degree from Central Michigan University.