London, 6 October 2026. Global energy storage owner-operator BW ESS and energy trader Danske Commodities today announced a 10-year optimisation agreement covering 100% of the 200 MW / 857 MWh Berkswell Battery Energy Storage System (BESS), one of the UK's largest battery storage projects and among the country's longest-duration battery assets.
Under the terms of the 10-year floor agreement, Danske Commodities will provide trading and optimisation services for the entire asset. The agreement marks a significant milestone in the commercialisation of Berkswell, which entered construction in September 2026 and is expected to become operational in Q4 2027. Developed by BW ESS from greenfield origination and co-owned with energy and decarbonisation investor AIP Management, the project forms a key part of BW ESS’ UK portfolio.
Once operational, Berkswell will be capable of supporting the electricity needs of around 700,000 UK homes for up to four hours. By storing electricity when generation is abundant and discharging it when demand increases, the project will support the integration of renewable energy and strengthen the resilience, flexibility and security of the UK electricity system.
Located near Solihull in the Midlands, Berkswell is strategically positioned near major centres of electricity demand, enabling it to provide flexibility where it is needed most and help maintain a reliable power supply. The four-hour battery system will be among the longest-duration battery storage sites in the UK. The project is expected to use Sungrow’s PowerTitan 3 technology to deliver the efficiency, reliability and performance required by the evolving UK electricity network.
“This agreement with Danske Commodities provides a strong commercial foundation for Berkswell and helps unlock the long-term value of this strategically important energy storage project,” said Kilian Leykam, Chief Commercial Officer of BW ESS. “With construction under way, we are another step closer to bringing the project online and delivering critical flexibility to the UK grid.”
“We are proud to have been selected by BW ESS to optimise Berkswell,” said Jakob Sørensen, CEO of Danske Commodities. “Drawing on more than 15 years of experience in British power markets, we will use our trading expertise to maximise the value of the asset while providing the flexibility needed to integrate intermittent renewable generation. The UK is a core market for us, and Berkswell is an important addition to our growing portfolio of flexible assets.”
Please click here for an image to accompany the release.
In image (from left to right): Nikhil Koppaka (BW ESS, Senior Commercial Manager), Kilian Leykam (BW ESS, Chief Commercial Officer), Rimshah Javed (Danske Commodities, Senior Originator), Scott Skovlund-Airlie (Danske Commodities, Portfolio Manager), Erik Strømsø (BW ESS, CEO & Co-Founder), Evelyn Fabbri (BW ESS, Senior Analyst), Jakob Krogshave Laursen (Danske Commodities, Director, Head of European Origination), Jakob Sørensen (Danske Commodities, CEO), Mads Brøndum Djernæs (Danske Commodities, Portfolio Manager), Javier Arrué (BW ESS, Investment Director).
ABOUT BW ESS
BW ESS is a global energy storage owner-operator, moving with speed to develop, deliver and operate market-leading projects.
The business is active in the UK, Australia, Italy, Germany, Spain, and Sweden. It has more than 540MWh of operating Battery Energy Storage Systems (BESS), with ~12GWh under / pre-construction and a development pipeline of several gigawatts.
Part of BW Group, BW ESS builds on decades of global infrastructure experience, takes a long-term view of projects and partnerships, and focuses on unlocking value throughout the energy storage asset lifecycle.
ABOUT DANSKE COMMODITIES
Danske Commodities is an energy trading company that specialises in power and gas trading and offers balancing, optimisation and hedging services to energy producers and suppliers. Every day, the company completes more than 130,000 trades across 40+ countries, constantly moving energy from where there is more than needed to where it is needed most. Danske Commodities is a wholly-owned subsidiary to Norwegian energy company Equinor, operating under its own name and brand.
MEDIA CONTACT AT BW ESS
Tamarindo Communications
E-mail: bwess@tamarindo.global
MEDIA CONTACT AT DANSKE COMMODITIES
Lotte Ulsøe
Mobile: +45 2871 5245
E-mail: lul@danskecommodities.com