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NEC Energy Solutions Partners with EOS Energy Storage to bring Revolutionary Energy Storage Product to Market

*** For immediate use October 9, 2015

October 9, 2015 - Westborough, MA, USA - NEC Energy Solutions ("NEC ES"), a subsidiary of NEC Corporation, announced today that it has entered into an agreement with Eos Energy Storage LLC ("Eos") to develop next-generation energy storage solutions based on Eos's Znyth™ zinc hybrid cathode battery chemistry and its Aurora DC battery system. NEC ES will collaborate with Eos to provide a complete GSS™(grid storage solution), which includes DC battery systems, power conversion systems, controls hardware, the NEC ES AEROSR controls software suite, as well as service and maintenance packages.

With a strong reputation for safety, reliability, and speed of installation, the GSS™is one of the most widely deployed grid energy storage solutions in the world with over 120MW installed. In the largest deployed sites, exceptional commercial reliability is being achieved with availability factors of over 99%. The GSS™can also be rapidly deployed and put into commercial operation within six weeks of equipment delivery on-site.

"Looking into the future, we acknowledge that no single energy storage technology will be able to meet the diverse needs of the grid and other stationary applications. This collaboration with Eos is part of our ongoing commitment to develop a comprehensive energy storage technology portfolio for our GSS and provide energy storage capabilities that match evolving industry needs," said Bud Collins, CEO of NEC ES.

Eos's Aurora DC battery system is optimized for four hours of continuous discharge and can be used for peak shaving, solar and wind energy time-shifting, or transmission and distribution (T&D) grid support.

"With batteries currently being tested with major utility companies around the world, Eos is demonstrating the technology's viability, and with it the ability to provide DC energy storage systems at pricing levels which increase the number of economically viable applications and allows new markets to open up to storage," said Mr. Collins.

The collaboration expands NEC ES energy storage technology offerings and allows the company to supply an Eos-enabled GSS supporting reliable, secure, efficient and sustainable electricity grid infrastructure.

"With NEC Energy Solutions' global reach, system integration expertise, and proven ability to provide turn-key solutions to the industry, Eos has found a powerful new partner to offer complete grid solutions for our Aurora customers worldwide," said Philippe Bouchard, VP of Business Development at Eos. "At a price of $160/kWh, the Aurora DC battery system offers industry-leading cost, safety, and longevity. Our combined capabilities will create cost-effective, robust, and most importantly, bankable energy storage solutions designed to meet longer duration requirements in a safe, certified, and reliable package."

Eos is gearing up for mass-production and the companies are able to quote turn-key systems today with large MW-scale volume available in 2016.


About NEC Energy Solutions
NEC Energy Solutions develops and manufactures smart energy storage solutions for electric grid, backup power and lead-acid replacement applications with system integration expertise focusing on high performance, efficiency, safety and reliability.  NEC Energy Solution's products range from compact advanced industrial batteries to massive grid-scale energy storage systems.  Its turnkey GSS(TM) (Grid Storage Solution) products have successfully operated in commercial revenue service since 2009, while its commercial and specialty batteries provide solutions to fit the needs for telecom, IT backup, datacenter, medical, lead-acid replacement and other industrial applications.  For more information, please visit

About Eos Energy Storage
Eos is manufacturing a low-cost DC battery system for electric utilities, with additional applications in commercial and industrial, telecom, and residential markets. Eos's mission is to produce safe, robust, cost-effective energy storage solutions that are less expensive than incumbent alternatives, such as gas turbines for power generation. Eos is located in Edison, NJ, and New York, NY. More information is available at

NEC is a registered trademark of NEC Corporation. All Rights Reserved. Other product or service marks mentioned herein are the trademarks of their respective owners. (C)2015 NEC Corporation.

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