Nippon Koei targets 100MW of UK battery projects with energy storage JV

March 15, 2019
LinkedIn
Twitter
Reddit
Facebook
Email
Zenobe Energy is among the UK players to have received significant investment from Japanese companies in battery storage and smart energy. image: Zenobe Energy.

Nippon Koei, one of Japan’s largest engineering firms, has formed a joint venture with a British battery storage firm to construct two 50MW behind-the-meter energy storage projects in the UK.

Nippon Koei revealed earlier this week that its Netherlands-based Nippon Koei Energy Europe (NKEE) subsidiary had partnered with RNA Energy to establish two special purpose vehicles to house two specific investments, totalling more than £25 million.

The joint venture, which has yet to be named, will be held 80% by NKEE and 20% by RNA Energy.

NKEE expects to receive funds for EPC services related to the two projects’ development as well as ongoing commercial returns.

This article requires Premium SubscriptionBasic (FREE) Subscription

Try Premium for just $1

  • Full premium access for the first month at only $1
  • Converts to an annual rate after 30 days unless cancelled
  • Cancel anytime during the trial period

Premium Benefits

  • Expert industry analysis and interviews
  • Digital access to PV Tech Power journal
  • Exclusive event discounts

Or get the full Premium subscription right away

Or continue reading this article for free

But perhaps more interestingly, the firm is hoping that the two projects will enhance its track record in participating in battery storage projects in the UK, hinting that Nippon Koei sees potential growth in the country’s utility-scale battery storage market.

Nippon Koei is no stranger to the UK’s market and is to support NEC Energy Solutions in the EPC duties of two other large-scale behind the meter projects in the UK.

The deal is also representative of a wider trend of Japanese companies investing in the rapidly-evolving UK energy scene.

Japanese utility Tokyo Electric Power Company (Tepco) has invested in battery storage firms Zenobe and Moixa as well as energy tech start-up Electron over the course of the last year, while Moixa also confirmed a major partnership with Japanese automotive giant Honda earlier this month.

13 October 2026
London, UK
Now in its second edition, the Summit provides a dedicated platform for UK & Ireland’s BESS community to share practical insights on performance, degradation, safety, market design and optimisation strategies. As storage deployment accelerates towards 2030 targets, attendees gain the tools needed to enhance returns and operate resilient, efficient assets.

Read Next

March 3, 2026
3.6GWh of solar-plus-storage developments have progressed in Australia this week, with Edify Energy partnering with DT Infrastructure and Flow Power acquiring a 60MW project.
March 3, 2026
A second-round auction in the UK for grid stability services, including inertia, concluded without any wins for grid-forming battery energy storage system (BESS) projects.
March 3, 2026
Allianz GI, Luxcara and Return have acquired BESS projects and portfolios in Germany, Finland and Spain; Low Carbon, OX2, Cero Generation and Revera have taken FIDs on projects in Poland, Finland and the UK; and NHOA Energy has received a 600MWh order in Italy. All in all, the projects total at least 3.7GWh of capacity.
March 3, 2026
A number of Chinese energy storage companies have released their 2025 annual earnings results and forecasts, revealing divergent performance.
March 2, 2026
Winter Storms cause major disruptions, but Texas’s fleet of battery storage plays an increasing role in grid resilience, writes Randolph Mann, CEO of esVolta.