• 35 MW / 70 MWh battery energy storage system now energised located near Richmond, North Yorkshire
• Skeeby BESS can help power around 120,000 homes for two hours, supporting a cleaner, more flexible and more secure energy system
• Skeeby marks the first Harmony Energy site to go live following Alpiq’s investment
Knaresborough, Yorkshire, 19 August: Harmony Energy, one of Europe’s leading developers, owners and operators of utility-scale battery energy storage systems, has successfully energised its Skeeby Battery Energy Storage System (BESS) near Richmond, North Yorkshire.
The 35 MW / 70 MWh project, which uses Tesla Megapack technology, is now energised and preparing to enter commercial operation. It can store power from sources such as wind and solar and release it back to the grid when demand is high, enough to power around 120,000 homes for two hours. The site will strengthen the UK's clean energy supply and support the wider transition to a more reliable, flexible and lower-carbon electricity system.
Battery storage plays a critical role in the UK's energy system by helping to make better use of homegrown renewable power, strengthening energy security and reducing reliance on imported fossil fuels. By storing electricity when demand is low and releasing it when demand is higher, projects such as Skeeby can help reduce curtailment of clean power, support grid stability and contribute to lower costs for consumers over time.
The energisation of Skeeby also marks an important milestone for Harmony Energy following its recently announced strategic investment from Alpiq, a leading Swiss energy services provider and electricity producer. Skeeby is the first Harmony Energy site to go live since the investment was announced, demonstrating the company's continued momentum as it accelerates delivery of its battery storage pipeline across Europe.
Peter Kavanagh, CEO of Harmony Energy, said: “Skeeby is an exciting milestone for Harmony Energy, not only because it brings another important battery storage project online, but because it is the first site to be energised since our strategic investment from Alpiq.”
“That investment gives us additional backing to accelerate the delivery of projects like this across the UK and Europe, while continuing to operate with the same team, brand and development expertise that have underpinned Harmony Energy's growth to date.”
Beyond energy, Harmony Energy works to deliver projects that protect nature and bring lasting benefit to the communities that host them. At Skeeby, that includes biodiversity measures such as new planting and habitat improvements, alongside support for initiatives like Richmond Bike Park, a new free-to-access bike skills park expected to launch in late 2026.
About Harmony Energy: www.harmonyenergy.co.uk
Founded in the UK in 2010, Harmony Energy is one of Europe's leading developers, owners and operators of utility-scale battery energy storage systems (BESS), strengthening grid flexibility and resilience, enhancing energy security, and supporting homegrown energy systems across the continent. With around 90 people operating across the UK, France, Germany and Poland, the company has developed, built and managed 772 MW of operational capacity across Europe, including 18 sites in the UK and one in France, with a further European pipeline of over 12 GW. Harmony Energy's multi-award winning team is headquartered in North Yorkshire. In 2026, Swiss energy company Alpiq acquired a 90% stake, with founder Peter Kavanagh retaining 10% and continuing as CEO.
Media Enquiries:
English/global media: Harmony Energy - Jack Kelly jack.kelly@harmonyenergy.co.uk / +44 (0) 7834 197934
Interested in finding out more about battery energy storage?
Watch our simplifying BESS video where we break down, in its simplest voice, why BESS are the future of renewable energy:
English: https://youtu.be/itwprIzpAKk?si=8eFg8RE71jMyIrV1