Greensmith, E.On, Tucson Electric Power complete energy storage project

(Above: Salem Smart Power Center, courtesy of Portland General Electric)

Energy storage software and services company Greensmith Energy, E.On Climate and Renewables, and Tucson Electric Power inaugurated the Iron Horse Battery Energy Storage Project.

The 10 MW / 2.5 MWh energy storage system at the University of Arizona Science and Technology Park will provide frequency response and voltage control. The project illustrates the growing trend of programmable battery storage replacing fossil generation as the least-cost solution for grid reliability services. The system also provides integration for a new 2 MW solar array.

Greensmith provided design, integration and commissioning of the turnkey energy storage system that leveraged lithium titanate oxide batteries. The company’s GEMS software control platform will deliver real-time monitoring, integrated control and system optimization and safety throughout life.

Landis+Gyr designed, engineered, and supplied a 10 MW containerized lithium-ion energy storage system based on Toshiba’s SCiB technology for this project.

“Fast-responding energy storage software will be critical for maintaining grid stability as the Tucson area prepares to add hundreds of megawatts of new renewable energy capacity in the years ahead,” said Greensmith CEO John Jung. “We are proud to partner with E.On to help make Tucson Electric Power’s clean energy vision a reality.”

Greensmith announced its participation in the Iron Horse project last summer, following project approval from the Arizona Corporation Commission for a ten-year agreement to use the project for ancillary services. Greensmith, E.On, and TEP broke ground late last year.

Iron Horse supports TEP’s goal of delivering at least 30 percent of its power from renewable resources by 2030, doubling Arizona’s 2025 statewide benchmark.

On May 15, Greensmith announced that Wärtsilä signed an agreement to acquire the company. The transaction, subject to US regulatory approval, is expected to close by July 2017.

Previous articlePOWERGRID_INTERNATIONAL Volume 22 Issue 6
Next articleSiemens Gamesa to equip German offshore wind power project
The Clarion Energy Content Team is made up of editors from various publications, including POWERGRID International, Power Engineering, Renewable Energy World, Hydro Review, Smart Energy International, and Power Engineering International. Contact the content lead for this publication at

No posts to display