Built by people who needed it
Lumen started inside a UK solar developer that couldn’t diligence its own pipeline fast enough.
Where Lumen came from
Two Blues Solar, a UK solar and battery developer and funder, was growing faster than it could diligence its projects to the standard its funding partner required. In 2025 it built the first version of Lumen to close that gap.
Josh Nightingale then joined to spin Lumen out of Two Blues Solar and build it for the whole market.
Proper diligence for every distributed energy project
Energy is increasingly built as thousands of small projects rather than a few large plants. Each one needs proper scrutiny before capital will back it, and most are too small to pay for a manual review.
We’re making full diligence affordable at any size, starting with solar in the UK.
The team
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Josh Nightingale
Co-founder, CEO and Head of Product
Leads product and strategy. Built an AI engineering tool whose IP was acquired by SendCutSend. Previously spent 8+ years in commercial construction and engineering consultancy across New Zealand and Australia.
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Daniel Levene
Co-founder, Engineering and Sector Strategy
Leads sector strategy and domain engineering. Member of Solar Energy UK’s Energy Markets Steering Group. Former COO of UniLED and a director at Two Blues Solar.
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Dillon Cane
Co-founder, Commercial, Legal and Finance
Leads legal, regulatory and finance. Former Head of Portfolio Management at Cogress, with 10+ years across real estate and solar finance. A director at Two Blues Solar.
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Piotr Korgol
Senior Software Engineer
Architect of the Lumen platform. Formerly VP of Engineering at Senken, specialising in AI and cloud architecture.
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Freddie Marsh
Data Engineer
Designs Lumen’s data pipelines and structured knowledge systems. MEng in Engineering Mathematics from Bristol.
Talk to the team
We’re based in London and work with developers, funders and consultants across the UK and Europe.