Octopus powers up 2.3 million Spanish homes with latest renewable solar and battery storage investments

• Octopus boosts Spain’s energy transition with 600 MW of solar and battery storage capacity
• Comes as Octopus Energy becomes Spain’s fastest-growing independent energy supplier, supplying over 350,000 customers
• Deals to grow Octopus’s European renewables portfolio to close to 5GW of green projects

London / Valencia, 3rd September 2025 – Octopus Energy is supercharging Spain’s energy transition by investing in three new projects that will deliver 600MW of clean energy – enough to power 2.3 million homes, or over 10% of Spanish homes.

Announced today at the Government’s UK-Spain Trade and Investment Roundtable, the investments made through Octopus Energy Generation’s £2bn ‘Sky’ fund (ORI SCSp) include newly acquired solar farms in Navarre and Albacete generating a combined 100 MW, plus a battery storage developer targeting 500 MW of capacity over the next five years.

Octopus has recently invested in OneSolar, a Barcelona-based energy advisory firm aiming to help businesses build and run solar and battery projects more efficiently.

Since entering Spain three years ago, Octopus has rapidly grown its retail business, becoming the country’s fastest-growing independent energy supplier* with over 350,000 customers.

The company is on track to reach one million customers by 2027, even outpacing its early growth in the UK while delivering smarter, cheaper, and greener energy solutions for households and businesses across the country.

Building on its huge success in the UK, Octopus is transforming homes across Spain with its smart EV charging tariff, Intelligent Octopus Go, and more than 7,000 solar panel and EV charger installations.

Zoisa North-Bond, CEO of Octopus Energy Generation, said: “Spain’s appetite for the energy transition is truly remarkable. Following closely in the footsteps of the market disruption we led in the UK, Octopus Spain is unlocking the full potential of the country’s abundant clean energy – from cutting-edge battery storage and solar farms to cheaper electricity for households and businesses.

“Every project we deliver adds more green power to the system and brings smarter, more sustainable energy solutions to communities across Spain. And it’s been incredible to see the progress we’ve already helped achieve.”

These investments are the latest additions to Octopus Energy Generation’s growing portfolio in Europe, already managing more than 4.9 GW of clean energy projects globally and comes as the business expands at record speed.

-ENDS-

Notes to editors:

Sources:

* According to the National Commission on Markets and Competition (CNMC), Octopus Energy Spain has been recognised for its growth, reaching 170,000 supply points in 2024, more than any other privately held Spanish energy supplier, July 2025

Press Contacts

Octopus Energy Group

Christina Hofmann

Senior PR Manager

press@octoenergy.com

+44 (0)20 4530 8369

About Octopus Energy Generation

Octopus Energy Generation is driving the renewable energy agenda and building green power for the future. It is reshaping the market by leading the transition to a cleaner, greener future through renewable projects connected more deeply to customers and businesses. As one of Europe’s largest specialist renewables investors, it manages 4.9 GW of green energy projects like wind and solar farms in 21 countries, worth £7bn ($9bn/ €8.5bn). These generate enough green power for 2.4 million homes every year - the equivalent of taking over 1 million petrol cars off the road.

Octopus comes up with innovative tech-enabled products to change ingrained thinking about energy, positively influence the net zero economy, deliver cheaper energy for customers and make it easier for everyone to be a part in the energy transition. This includes innovations like ‘The Collective’ – the UK’s first FCA-regulated investment platform launched by an energy supplier. It allows people to invest directly in renewable energy projects', like wind turbines or solar farms, from £25. The first two projects’ available shares sold out within 6 days, showing strong appetite for a new way to take part in the clean energy transition.

For more information, check out our website.

About Octopus Energy Group

Octopus Energy is a global clean energy tech business, driving the affordable, green energy system of the future. Under its own retail brand, Octopus delivers world-class customer service and cutting edge energy products to almost 10 million households globally. Its operations span 32 countries and the entire energy value chain. The group invests in, builds and flexibly manages renewable energy, operating a £7 billion portfolio of projects.

Octopus has licensed its advanced data and machine learning platform, Kraken, to support over 60 million customer accounts worldwide through licensing deals with companies such as EDF, E.ON and Origin Energy. Kraken enables Octopus to drive the electrification of heat and transport through smart tariffs and innovative cleantech. Backed by pension funds, investors and energy giants, Octopus Energy Group businesses deliver cheaper, greener energy and cutting-edge tech to countries and customers worldwide.

For more information, check out our website.