Octopus Energy Group has launched a new €220m renewables fund Octopus Energy Development Partnership (OEDP) to build new green energy and rapidly grow the UK’s energy storage capacity.
Its first investment will see OEDP take a 24% stake in Exagen, which is working on large-scale solar and battery facilities, partnering with farmers, landowners and local communities to build projects that help bring energy security.
The deal includes the option to purchase one of the UK’s largest batteries at 500MW/1GWh located in the Midlands, England, scheduled to be operational by 2027.
This standalone battery would be the UK’s largest, and with the capacity to export the equivalent electricity usage of 235,000 homes in a single day.
Furthermore, as part of the agreement, OEDP has also acquired three solar farms with batteries on-site in the Midlands and North East of England, which Exagen is currently developing.
The solar farms have a combined capacity of approximately 400MW and are scheduled to come online in the next few year.
Exagen already has 2GW of solar and battery storage projects in their pipeline, which Octopus will be able to invest in once they’re ready to build.
Looking forward, OEDP will focus on investing in early stages of building new green energy, which Octopus said is vital to help reduce Europe’s dependence on gas imports and to lower energy bills in future.
Managed by Octopus Energy Generation, OEDP is targeting solar, onshore wind and energy storage projects in the UK and the rest of Europe.
There’s also potential to optimise assets through KrakenFlex, Octopus’ rapidly growing flexibility and trading platform, which currently manages 1300MW of green energy assets.
Octopus Energy Generation chief executive Zoisa North-Bond said: “This fund is helping to unlock huge amounts of new renewable energy across Europe, turbocharging the journey to greater energy security.
“The more new green power we can build, the faster we can reduce our dependence on gas imports and drive down energy bills for people in the UK and the rest of Europe.”
Co-head of Octopus Energy Generation’s fund management team Alex Brierley added: “Making the first investment from this new renewable development fund is a major milestone for us and we’ve got more coming up.
“Working with Exagen, there’s a massive opportunity to scale solar and battery storage projects – and these will play an absolutely integral role in the flexible renewable energy system of the future.”
Jeremy Littman, founder and chief executive of Exagen, said: “All of us at Exagen are thrilled by this ground-breaking deal with Octopus, which will support us in our mission to build smarter, flexible renewable generation projects across the grid, enabling communities access to cleaner, cheaper energy.
“I believe our commitment to our staff, our technology-focused approach to operations, and above all our passion for local communities and the environment has aligned us with the Octopus team and we’re all looking forward to delivering on our promise together.”


