Solar That Generates Both Heat and Power from the Same Rooftop
with Christophe Williams
Founder & CEO of Naked Energy
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Hosted by
CEO, Unreasonable Group
About This Episode
Featured Guest
Christophe Williams
Founder & CEO of Naked Energy
Christophe Williams is the founder and CEO of Naked Energy, a British solar technology company whose patented tubular collectors generate both heat and electricity simultaneously. Before clean tech, Christophe spent 15 years as a film editor in advertising. The company has raised over 30 million pounds, and its technology is installed on buildings including Wimbledon's All England Club. Investors include E.ON and Barclays. Christophe joined the Unreasonable Fellowship through the Unreasonable Impact program, run in partnership with Barclays.
Key Takeaways
Heat is 40% of global emissions and over half of all energy consumed. Most still comes from fossil fuels. Almost nobody talks about it.
Naked Energy's collectors convert up to 80% of the sun's energy into hot water, vs. 20% for traditional PV. The hybrid product generates both heat and power from the same rooftop.
Payback is 4-8 years. A 4MW industrial system can save over half a million pounds per year, totaling more than 10 million euros over 25 years.
Christophe was a film editor for 15 years before switching to clean tech. He sold his house, took his kids out of private school, and went all in.
Wimbledon's All England Club uses Naked Energy collectors on its roof. Players shower in solar-heated water. The project came through Barclays, a strategic investor in the company.
His grandfather worked on wave power in the 1970s and told him: "If we put all known fossil fuels into a calendar year, we've only got minutes left."
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