E.ON to build 10MW storage facility for Arizona utility

July 27, 2016
LinkedIn
Twitter
Reddit
Facebook
Email

Source: Flickr/Arran Bee
E.ON Climate & Renewables North America is to build a 10MW battery energy storage facility with a 2MW solar array in collaboration with Arizonan utility Tucson Electric Power (TEP). The Iron Horse Battery Energy Storage Project is expected to be completed in the first half of 2017.

The grid-scale facility will provide frequency response and voltage control, and will be situated adjacent to the University of Arizona’s Science and Technology Park, southeast of Tucson.

“E.ON, as a provider of global energy solutions, is proud of our ability to work with a utility like TEP to provide innovative grid reliability solutions benefiting their customers. Beyond providing grid-scale battery storage capabilities, E.ON has partnered with utilities to provide energy through PPAs and to complete quality turnkey solar facilities,” said Steve Trenholm, president of E.ON Solar, in a statement.

E.ON is developing the project with California-based storage software provider Greensmith Energy, to enhance TEP’s contribution to grid stability by providing ancillary services throughout the 10-year contract.

This article requires Premium SubscriptionBasic (FREE) Subscription

Try Premium for just $1

  • Full premium access for the first month at only $1
  • Converts to an annual rate after 30 days unless cancelled
  • Cancel anytime during the trial period

Premium Benefits

  • Expert industry analysis and interviews
  • Digital access to PV Tech Power journal
  • Exclusive event discounts

Or get the full Premium subscription right away

Or continue reading this article for free

“We’re working very hard to build a more resilient grid in a cost-effective way for our customers, and exploring energy storage technologies is an important aspect of our efforts,” said Carmine Tilghman, a TEP senior director, in a statement. “E.ON provides both innovative technologies and a wealth of expertise that will help us to achieve our long-term renewable energy and resource planning goals.”

In addition to supplementing TEP’s grid management capabilities, E.ON also provides energy to TEP from its 6.6MW Tech Park Solar plant and 13.2MW Valencia Solar facility, as well as partnering on the turnkey construction of TEP’s 17.2MW solar facility at the Fort Huachuca Army Base near Sierra Vista in Arizona.

Read Next

Premium
December 11, 2025
Energy-Storage.news Premium speaks with John Farrell, Co-Director of The Institute for Local Self-Reliance (ILSR), on rising utility costs and the role energy storage can play.
December 11, 2025
A trio of large-scale BESS announcements by major power firms of 700-800MWh capacity each in Germany show the country’s energy storage market moving into the new era of scale.
Premium
December 8, 2025
Supervisors in Maricopa County, Arizona, have approved a 100MW/400MWh battery storage project from National Renewable Solutions (NRS).
November 19, 2025
Utility and power firm LEAG has partnered with Chinese system integrator HyperStrong for a 400MW/1,600MWh BESS in Saxony, Germany.
Premium
November 14, 2025
The US development arm of Milan, Italy-headquartered developer Nadara has encountered a setback in its pursuit of a 200MW hybrid BESS destined for Arizona.