The deal is the first announced long-term tolling agreement for a single BESS asset in Great Britain, creating a template for a new revenue structure that will help to unlock energy storage market opportunities across Europe.
The fixed-price tolling agreement provides revenue certainty for BW ESS and Penso Power while Shell will trade the Bramley BESS into a range of ancillary services and wholesale markets.
The 100 MW/330 MWh Bramley site is the first project in Europe to deploy Sungrow’s PowerTitan 2.0 liquid cooled BESS – a system that combines a 2.5 MW Power Conversion System using integrated string inverters and a 5 MWh battery into a single container. This has enabled BW ESS and Penso Power to deliver a 330 MWh project within a relatively small project footprint. Bramley is expected to be the longest duration BESS in the UK at the time of commissioning, which is expected in Q4 this year.
“Bramley showcases our commitment to advancing energy storage solutions that set the bar for the wider market – while pioneering new models for project financing and operation” said Erik Strømsø, CEO of BW ESS. “This tolling agreement, which has been some time in the making, demonstrates the attractiveness of longer-duration, higher-performance battery systems. It not only secures long-term revenues for Bramley, but also helps enable the market’s shift away from short-term frequency response towards load shifting.”
The agreement commences upon commissioning of the Bramley project in Q4 this year. Ashurst LLP acted as legal advisors to BW ESS and Penso Power and Shell used its own in-house legal team.
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