The latest renewable energy news includes announcements on Harmony Energy, Island Green, Appalachian Power, Skeeby battery energy storage system, American Electric Power, among others.
Harmony Energy Energises 35 MW / 70 MWh Skeeby Battery Using Tesla Megapacks
Harmony Energy has energised the 35 MW / 70 MWh Skeeby battery energy storage system near Richmond in North Yorkshire and is preparing the facility for commercial operation. The two-hour BESS uses Tesla Megapack technology and can store renewable electricity during lower-demand periods before returning it to the grid when demand increases. Harmony says the stored electricity is equivalent to supplying around 120,000 homes for two hours. Skeeby is the first Harmony Energy project energised since Swiss energy company Alpiq made a strategic investment in the battery-storage developer. The investment is intended to support acceleration of Harmony’s wider UK and European storage pipeline. The project will help integrate wind and solar generation while providing flexibility, reducing curtailment and supporting UK grid stability.
Island Green Wins Approval for 50 MW Solar and 500 MW Battery Storage Project in UK
Island Green Power has secured planning approval from West Lindsey District Council for a major hybrid renewable-energy development at Grange Farm near Stallingborough, England. The project combines 50 MW of solar generation with 500 MW of battery energy storage, creating one of the larger co-located solar-and-storage developments in the area. The battery system is designed to absorb surplus renewable electricity and discharge it when grid demand is higher, improving flexibility and supporting further renewable penetration. The approval allows Island Green Power to move the project toward its next development stages, including detailed engineering and construction preparations. The scale of the BESS component highlights the increasing importance of energy storage in balancing the UK’s fast-growing solar and wind generation fleet.
Appalachian Power Launches Tenders for 800 MW of Battery Energy Storage
Appalachian Power has opened two competitive solicitations seeking up to 800 MW of new energy-storage capacity, marking a significant expansion of battery infrastructure in its service territory. The American Electric Power subsidiary is seeking storage projects capable of supporting grid reliability, integrating renewable generation and meeting future electricity demand. Developers can participate through proposals structured around utility ownership or long-term arrangements, depending on project configuration. Large-scale battery procurement is becoming increasingly important for U.S. utilities as solar and wind penetration increases and power demand rises from data centers, manufacturing and electrification. The 800 MW target demonstrates the growing scale at which regulated utilities are incorporating storage into long-term resource planning rather than treating batteries as niche grid-support assets.
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