Younicos and Duke Energy combine on 36 MW Texas storage project


Younicos, the Berlin, Germany-based developer of battery storage technology, has developed a hybrid storage control platform that will be deployed at one of the largest wind-integrated battery systems in the U.S.

The project is a collaboration between U.S. utility Duke Energy Renewables, Younicos, and Samsung SDI, the latter of which is deploying its new lithium-ion batteries to the project. These batteries from Samsung SDI will be used in combination with advanced lead-acid technology already in situ at the site – the Notrees Battery Storage facility in Texas. The battery plant is part of the wider 153 MW wind facility.

The first phase of the re-powering project will add 36 MW of storage capacity to what will become North America’s largest wind-integrated battery plant. The system was first operational in 2012, but this upgrade will make it the first in Texas to use lithium-ion technology in the Fast-Responding Regulation Service market (FRRS) under grid operator ERCOT’s market rule framework.

The integration of lithium-ion will increase the duration of discharge at the Notrees facility, which will ensure fast-responding services and an expanded service delivery framework. For Younicos CEO James P. McDougall, this next generation approach to storage control systems is an "exciting development" that brings together the expertise of the three concerned parties.

Greg Wolf, Duke Energy’s president commercial portfolio, agreed, adding: "This reinvestment will extend the life of the project and expand the value it provides to the market."

"Duke Energy’s Notrees Energy Storage System (ESS) is a landmark of the U.S. energy storage industry," added Samsung SDI energy storage SVP Woochan Kim. "With our most innovative lithium-ion battery technology, we are proud to provide a new heart to the ESS, and join forces with the Younicos team."

Younicos' hybrid control system can accommodate planned battery replacements and new chemistry enhancements over time, working with the essence of the storage system – the lithium-ion batteries – to ensure optimal deployment of the stored energy.

Germany’s Younicos recently announced the launch of a storage consulting service in Austin, Texas, as the company seeks to grow its market share and influence in the soaring North American storage market.

Popular content

This content is protected by copyright and may not be reused. If you want to cooperate with us and would like to reuse some of our content, please contact:


Related content

Elsewhere on pv magazine...

Leave a Reply

Please be mindful of our community standards.

Your email address will not be published. Required fields are marked *

By submitting this form you agree to pv magazine using your data for the purposes of publishing your comment.

Your personal data will only be disclosed or otherwise transmitted to third parties for the purposes of spam filtering or if this is necessary for technical maintenance of the website. Any other transfer to third parties will not take place unless this is justified on the basis of applicable data protection regulations or if pv magazine is legally obliged to do so.

You may revoke this consent at any time with effect for the future, in which case your personal data will be deleted immediately. Otherwise, your data will be deleted if pv magazine has processed your request or the purpose of data storage is fulfilled.

Further information on data privacy can be found in our Data Protection Policy.