Ashley Grealish | Co-founder & CEO
Windfall Energy

Ashley Grealish, Co-founder & CEO, Windfall Energy

Ashley Grealish is Co-Founder and CEO of Windfall Energy, a London-based clean energy startup democratising access to renewable energy for the 2.3 million urban residents living in flats and rental properties. Windfall Energy's plug-and-play battery system enables renters and flat-dwellers to automatically store cheap, clean energy during off-peak hours and power their homes during expensive peak times, without requiring professional installation or permanent home modifications. Before Windfall Energy, Ashley was the CTO at ev.energy, where he developed smart EV charging solutions that optimise grid demand and reduce costs for electric vehicle owners. At Bboxx, he led the development of pay-as-you-go solar products, contributing to their mission of providing clean energy access to off-grid communities and gaining experience in energy storage and distributed energy systems. Windfall Energy has completed the Bethnal Green Ventures Tech for Good accelerator, validated product-market fit through beta programmes, and established strategic partnerships with energy suppliers. The company is preparing to launch commercial operations with their first production units, positioning themselves in the UK's growing residential energy storage market.

Appearances:



Day 3 - 25th September @ 14:10

Innovation hour: Using technology to improve installations, compliance and customer experience

Join us for Innovation Hour, where emerging companies and new ideas take the spotlight. This session will showcase practical technologies, tools, and approaches that aim to improve how we generate, store, and manage energy. A chance to hear directly from innovators working on real solutions for the future of solar and storage in the UK.

 

  • 14:10 - Jo Fleming, Corrie Energy 
  • 14:20 - Joe Marhamati, Sunvoy 
  • 14:30 - Ashley Grealish, Windfall Energy
last published: 12/Sep/25 11:05 GMT
last published: 12/Sep/25 11:05 GMT

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