Utility-scale energy storage order announced

By Jack Burke23 September 2021

The long-duration batteries will be used to support a solar farm in Spain

ESS Tech, a manufacturer of long-duration iron flow batteries for commercial and utility-scale energy storage applications, has closed an order with Enel Green Power España to deliver 17 ESS Energy Warehouse iron flow battery systems.

The long-duration batteries will be used to support a solar farm in Spain as a part of a broader EU-wide engagement, providing resilience for the local power grid. With a combined capacity of 8.5 MWh, the ESS systems will be among the largest battery storage resources in Spain, the companies said.

“We are 100% committed to energy storage as an essential complement to our expanding portfolio of renewable energy projects,” said Pasquale Salza, head of Long-Duration Storage and Hybrid Systems for Enel Green Power. “With this project, we’re going to assess and validate the ESS flow batteries, which we selected due to their right combination of long-duration capacity, long-life performance, environmental sustainability and safe operation.”

ESS is collaborating with several key partners on this project, including Loccioni, a global systems integrator with projects in over 45 countries. The Company is also working with Enertis, a global consulting and engineering firm headquartered in Spain.

ESS Tech, a manufacturer of long-duration iron flow batteries for commercial and utility-scale energy storage applications, announced that it has closed an order with Enel Green Power España to deliver 17 ESS Energy Warehouse iron flow battery systems like those seen here.

“Our systems passed a 6-month technology and company readiness assessment – meeting Enel Green Power España stringent performance, durability and cost requirements to become an Officially Qualified Global Vendor. Another key factor in their decision is that our batteries are covered by a comprehensive insurance plan underwritten by Munich Re, the world’s largest reinsurance company,” said Eric Dresselhuys, CEO of ESS Inc.

Enel Green Power, within the Enel Group, develops and operates renewable energy plants worldwide and is present in Europe, the Americas, Asia, Africa and Oceania. The company has a total installed capacity of around 49 GW and a generation mix that includes wind, solar, geothermal, and hydropower.

Established in 2011, ESS Inc. designs, builds and deploys iron flow batteries for long-duration commercial and utility-scale energy storage applications requiring from 4 to 12 hours of flexible energy capacity. The Energy Warehouse and Energy Center use earth-abundant iron, salt, and water for the electrolyte, resulting in an environmentally benign, long-life energy storage solution for the world’s renewable energy infrastructure, the company said.

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