Fuse Energy's source-to-socket bet: ex-Revolut founders, $5B, 300k UK homes

A UK energy company that owns renewable generation, wholesale trading, retail electricity supply, demand-forecasting software and consumer hardware under one roof, selling power directly to households through an app.

That Revolut-style ownership of the whole stack applies to energy: generate, trade, supply and forecast in-house, so prices undercut incumbents and scale follows.

In 2022 Alan Chang and Charles Orr, two early Revolut executives, watched the UK energy crisis: wholesale prices spiked and roughly thirty suppliers collapsed. Their read was that incumbents had outsourced generation, trading and retail into a fragmented chain that could not adapt. They launched Fuse Energy to rebuild the whole value chain in one company, in the same vertically integrated way Revolut had attacked banking.

Fuse supplied electricity to UK households and kept adding layers: consumer gas supply, The Energy Network (a programme rewarding customers for shifting use to off-peak, with public rollout set for January 2026), and an in-house micro solar-and-battery product. Investors followed the story: a $70M Series B in December 2025 led by Lowercarbon Capital and Balderton - with Accel, Creandum, Ribbit, Lakestar and Nik Storonsky's QuantumLight among others - valued the company at about $5B, and in June 2026 20VC and Collaborative Fund added $30M to close the round at roughly $250M total raised.

By mid-2026 the company said it had been profitable every month since December 2025 and supplied more than 300,000 UK households, with a 1 GW generation pipeline, a new 32,000 sq ft Canary Wharf headquarters, and expansion into Ireland, Spain and the US underway.

The UK energy crisis removed entry barriers: roughly thirty suppliers collapsed in 2021-22, leaving households angry and switching, so a new brand could win accounts fast.

Vertical integration created a real cost wedge - roughly 17% versus the median supplier per the founders - which showed up as below-incumbent prices rather than just a pitch.

Software was the differentiator, not capital intensity: per-household digital-twin forecasting cuts trading waste that outsourced suppliers could not touch.

Ex-Revolut founders brought a playbook (own the rails, automate operations, move fast in a regulated consumer market) and investor access that most energy entrants lack.

Pick a regulated consumer market where incumbents outsource every step, then re-own the chain end-to-end; the efficiency wedge funds below-market pricing.

As of September 2026, Fuse Energy is scaling: it claims more than 300,000 UK households, profitability in every month since December 2025, and annualized revenue above $550M after 32% Q1 growth (City AM, June 2026). It closed its Series B at roughly $250M total raised, opened a 32,000 sq ft Canary Wharf HQ, and planned to hire over 380 people while entering Ireland, Spain and the US. Its stated next products are a plug-in solar-and-battery system for homes and the full 'Energy Network' off-peak rewards rollout.