E.ON begins construction on 10-MW Iron Horse energy storage project for Tucson Electric Power

Written By: Stratton Report
October 31, 2016


On October 31, E.ON announced the beginning of construction on its 10-MW Iron Horse battery energy storage project. Iron Horse, the first energy storage project for E.ON North America, is a lithium-ion battery energy storage facility with an adjacent 2-MW solar array.

In July, E.ON signed a ten-year agreement with Tucson Electric Power to provide frequency response and voltage control through Iron Horse. Per the firm, TEP will use Iron Horse’s capacity to help improve service reliability while studying how energy storage systems can support the expansion of solar power resources and other renewable energy technologies.

The project is southeast of Tucson, and is expected to be completed in the first half of 2017.

Steve Trenholm, President of E.ON Solar observed: “Breaking ground on any project is exciting, but beginning construction on Iron Horse is especially exciting for us. Iron Horse is an important first step as E.ON establishes itself as a player in North American energy storage. We are looking forward to delivering cost-effective energy storage projects with the same high quality that our customers have come to expect from us in wind and solar.”

Mark Frigo, VP of Energy Storage North America at E.ON noted:

“Iron Horse is just the first of several energy storage projects we are working on, and we look forward to further building E.ON as a player in the battery storage market,” said “Our team worked with TEP to engineer the right set of energy storage technologies to meet their needs to manage their system more efficiently and effectively, and we plan to work with our all our clients to customize solutions for their storage needs. We’re excited to apply E.ON’s utility storage expertise and proven track record of delivering projects on time and on budget to continue building a robust energy storage project portfolio.”

Carmine Tilghman, Senior Director of Energy Supply and Renewable Energy at TEP remarked: “We’re working very hard to integrate cost effective, innovative technologies that will improve service for our customers and support our expansion of renewable energy. That’s why E.ON is an excellent partner for a project like this. E.ON understands the promise and challenges of renewable energy and has demonstrated its expertise on other joint projects with us.”

E.ON emphasized that it has developed, built, and operates more than 3,000 megawatts of solar and wind renewable energy generation across the U.S., with more on the way. E.ON also offers O&M and asset management services to third party owner/operators looking for “Service with an Owner’s Eye.”