With surging demand from AI data centres, electric vehicles, and heating electrification, traditional suppliers, burdened by outsourcing and fragmentation, are delivering volatile prices and inefficiencies to consumers.
Fuse Energy tackles this through full vertical integration, from renewable site construction and power generation to trading, supply, installations, and hardware, slashing costs by around 10% compared to incumbents and saving UK households up to £200 annually on bills.
The London-based startup, one of Europe’s fastest-growing, just raised $70 million, led by Balderton Capital and Lowercarbon Capital, bringing its valuation to $5 billion in its third year.
The funds will be used for international expansion and accelerating the launch of new products.
Simplifying the system “from source to socket”
Fuse Energy was launched in 2022 by ex-Revolut executives Alan Chang, now CEO, and Charles Orr, drawing on their fintech scaling expertise to disrupt the energy sector. Motivated by Revolut’s playbook of ruthless efficiency and vertical control, they identified the energy model as outdated and ripe for reinvention, aiming to make power cheaper and more abundant for everyone.
Fuse’s in-house control enables faster scaling, grid-balancing innovations such as The Energy Network (launching in January 2026 to reward off-peak usage), and upcoming consumer hardware, including affordable micro solar-battery kits.
Other features include delivering reliable, lower-cost renewables at scale and achieving cash flow positivity with $400 million in ARR and 8x YoY growth.
Its core technology vertically integrates the entire energy stack, eliminating outsourcing inefficiencies that plague rivals like Octopus Energy and Bulb (now acquired by Octopus), which rely on third-party generation and trading.
What’s next?
Fuse plans to deploy $70 million to rapidly expand into Ireland, Spain, and the US, building on its UK base, which serves over 200,000 households amid rising global demand. Product launches will fast-track hardware for home generation and the full Energy Network rollout, enhancing grid stability and customer savings.
