E.ON celebrates opening of first energy storage project in North America


  • 10 MW Iron Horse energy storage facility paired with 2 MW solar array
  • Frequency regulation and voltage control support for Tucson Electric Power
E.ON celebrates opening of first energy storage project in North America

E.ON celebrated the opening of its Iron Horse Energy Storage & Solar Project at the University of Arizona’s Tech Park near Tucson. The 10 megawatt (MW) lithium titanium oxide storage facility and accompanying 2 MW solar array is now helping Tucson Electric Power (TEP) to maintain reliable electric service for more than 400,000 customers by providing frequency regulation and voltage control support.

“We’re excited to celebrate the grand opening of our first grid connected lithium battery system project in North America,” said Mark Frigo, VP of Energy Storage North America at E.ON. “Energy storage systems, like Iron Horse, allow utilities such as Tucson Electric Power to use renewable resources more effectively and efficiently within their electric grid. Energy storage has the potential to truly revolutionize the 21st century grid, and we are excited to be leading the way in this innovative new market segment.”

“We expect energy storage systems like Iron Horse to play an increasingly important role in the delivery of safe, reliable electric service to customers as we continue our expansion of renewable resources,” said Carmine Tilghman, Senior Director of Energy Supply and Renewable Energy for TEP. “E.ON has provided our local electric grid with a cost-effective, reliable battery storage and solar system that will help us build a more resilient grid for our customers.”

Lessons learned from the Iron Horse project are being applied to E.ON’s Texas Waves projects, the second and third grid connected lithium-ion battery systems installed by E.ON in North America. Co-located at E.ON’s existing Pyron and Inadale wind farms in West Texas, the Texas Waves projects are currently under construction and expected to be online by the end of 2017.

E.ON has developed, built, and operates more than 3,000 MW of renewable solar, wind and energy storage generation across the U.S., with more on the way. E.ON also offers O&M and asset management services to third party owners and operators.

This press release may contain forward-looking statements based on current assumptions and forecasts made by E.ON Group management and other information currently available to E.ON. Various known and unknown risks, uncertainties and other factors could lead to material differences between the actual future results, financial situation, development or performance of the company and the estimates given here. E.ON SE does not intend, and does not assume any liability whatsoever, to update these forward-looking statements or to conform them to future events or developments.