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Energy Storage

Wednesday
22 Dec 2021

Nippon Koei’s 100MW of UK Battery Storage to Enter Construction

22 Dec 2021  by solarpowerportal.co.uk   

Two UK battery energy storage systems (BESS) under development by Japanese engineering firm Nippon Koei’s Netherlands-based subsidiary have reached financial close.

The village of Cuxton, in Kent, near where one of the battery systems is to be located. Image: CamRutter

The two 49.5MW BESS are located in Tollgate and Cuxton, near London, with Nippon Koei Energy Europe B.V (NKEE) leading the planning and development, delivery of the EPC and O&M, investment and operation of the systems as a one-stop business service.

The company said the two projects will be the first business scheme in which five Japanese companies will jointly invest in a large-scale storage battery business, with these being Fuyo General Lease Co., Ltd., Tess Engineering Co., Ltd., Tokyo Century Corporation, Toshiba Mitsubishi Electric Industrial Systems Corporation (TMEIC) and Nippon Koei Co., Ltd.

TMEIC will procure the BESS, and Nippon Koei will install the energy management system controlling the BESS. Meanwhile, one of Nippon Koei’s group companies, YUSP BV, will optimise the operation of the battery systems in the UK power market.

Completion of the two assets is scheduled for spring 2023, with the BESS to provide multiple services to the UK power system including in the Balancing Mechanism and Dynamic Containment markets once operational.

The BESS were announced in 2019, with NKEE forming a joint venture dubbed RNK UK Investments Ltd (RNKUKI) with RNA Energy for the projects, which will be held under the umbrella of RNKUKI by Tollgate Energy Storage Ltd and Cuxton Energy Storage Ltd.

"Nippon Koei perceives the UK market as one of the advanced and well-developed markets for energy storage and Nippon Koei aims to learn from this market for its development in Japan and the rest of the world," the company stated. It first invested into grid storage batteries in the UK in 2017.

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