Why Bulb Energy Failed: Market Collapse | Startup Autopsy
£100M
Raised
6y
Time to collapse
// startup autopsy
Bulb Energy
The UK's fastest-growing renewable energy supplier entered special administration with 1.7M customers when wholesale gas prices surged 400% and its fixed-rate model collapsed.
Evaluating only Bulb Energy’s profile at its peak — without knowing the outcome — the model ranked Unit economics as the #1 likely cause. Documented cause: Market collapse.
Key Events Timeline
FOUNDING
FOUNDING
Bulb Energy founded
LAYOFF
Market downturn forces cuts
PRODUCT LAUNCH
CRISIS
SHUTDOWN
REGULATORY ACTION
Regulatory Kill: Bulb Energy ceases operations
Full Analysis
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Documented cause
Bulb Energy was founded in 2015 in London by Hayden Wood and Amit Gudka, offering 100% renewable electricity and carbon-neutral gas to consumers at competitive prices. The company raised over £100M, grew to 1.7 million customers, and became the UK's seventh-largest energy supplier. The business model was structurally exposed to wholesale energy price volatility: Bulb locked in customer prices while buying energy at spot market rates. When global wholesale gas prices surged 400% in autumn 2021 — driven by post-COVID demand recovery and supply constraints — Bulb was selling energy at prices far below its procurement costs. The company entered special administration in November 2021, costing UK taxpayers £3B to manage the customer transition. It was eventually sold to Octopus Energy.
Lesson
“Energy retail models must either hedge wholesale exposure or build margin buffers large enough to absorb 4x price spikes — growth funded on thin margins cannot absorb macro shocks.”
Failure anatomy
Collapse type
Bankruptcy
📉 MEDIUM
Hype cycle
None
Moat type
Brand
Fatal mistake
Demand Collapse
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