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Naked Energy

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High-density solar collectors for thermal and power generation

Crawley, United KingdomFounded 2009Energy
Valuation $0–100M Latest valuation · 2024
Revenue <$1M Latest reported FY
Headcount <100 Current team size
Total funding $10–50M Disclosed equity funding
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About Naked Energy

Naked Energy, founded in 2009 by CEO Christophe Williams, designs and manufactures high-density solar thermal and photovoltaic thermal (PVT) technology to decarbonize heat and power. Williams, inspired by his grandfather's work in renewable energy prototypes during the 1970s fuel crisis, transitioned from a career in creative media and advertising to establish a purpose-driven company focused on a significant, yet often overlooked, aspect of energy consumption: heat, which accounts for over half of global energy use.

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The company's core products are the VirtuHOT and VirtuPVT collectors. VirtuHOT is a solar thermal collector that generates heat up to 120°C for water and space heating. VirtuPVT is a hybrid product that generates both electricity and thermal energy from a single collector, reportedly producing three to four times more energy than traditional photovoltaic (PV) panels. The modular, evacuated tube design of the Virtu collectors allows for high energy density, making them suitable for buildings with limited roof space but high energy demands, such as hotels, hospitals, leisure centers, and manufacturing facilities.

Naked Energy operates on a business-to-business model, working with a global network of strategic partners, distributors, and certified installers to deliver its technology to commercial and industrial clients. The company also offers a "Heat-as-a-Service" model, which allows customers to adopt zero-carbon heat solutions without upfront capital expenditure, paying only through operational expenses. Furthermore, Naked Energy provides a bespoke system design service to ensure its solar thermal technology integrates efficiently with existing heating systems. The company has secured significant funding to support its growth, including a Series B round in July 2024 led by E.ON Energy Infrastructure Solutions, with support from existing investor Barclays. This investment is aimed at accelerating global expansion, particularly in the US and Europe, and scaling the distribution of its technology.

Source: Dealroom company data

At a glance

Status
Operational
Founded
2009
Headquarters
Crawley, United Kingdom
Employees
44
Open positions
None listed
Dealroom signal
91.4/100
Sub-industry
Clean Energy, Energy Storage
Sector
Energy, Solar Energy, Sustainable Development Goals, Thermal Energy Storage, Climate Tech, EIT Climate-KIC Portfolio, EaaS, Renewable Energy, EIT KIC Partners
Technology
Hardware, Deep Tech
Business model
Manufacturing
Client focus
b2b

Latest news

Press, funding announcements and product moves mentioning Naked Energy.

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Funding history

6 recorded events

Company financing events and reported valuations.

Deal typeDateAmountValuationInvestorsSource
LATE VCEquity / VC Aug 2026 $12M $47M Barclays Climate Ventures · Great British Energy
SERIES BEquity / VC Jul 2024 $22M $90M E.ON · Barclays Climate Ventures
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Financials

Revenue, earnings and profit over time

Revenue, earnings and other financial measures where available. Years marked “E” are estimates.

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Growth signals

Naked Energy website traffic

Latest recorded traffic for Naked Energy is 4.6K monthly website visits, up 17.9% over the last three months. Naked Energy's team grew 12.8% over the past year.

Latest monthly visits4.6K 3-month web change+17.9% 1-year team growth+12.8%
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Similar companies

Closest operating peers by Dealroom taxonomy

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Investors

15 investors on the cap table

From Dealroom's funding and investor records, grouped by the round each investor first entered.

Series A5 investors entered at this stage

  • Earthworm
  • Big Sky Partners
  • Nesta Impact Investments
  • E.ON
  • Barclays Climate Ventures

Series B and later1 investor entered at this stage

  • Great British Energy

Other known investors9 additional known investors

  • Tech Nation
  • Antoine Pradayrol
  • Current
  • EIT Climate KIC
  • Greenbackers Investment Capital
  • Grow London
  • Ocean Born Impact
  • The Greenhouse
  • Unreasonable Group
Team profiled 7 named & role-tagged
Founders Hidden — book a demo/100 quality score
Key operators 2 quality Hidden — book a demo/100
Potential founders Hidden — book a demo likely future founders
Startup mafia Hidden — book a demo alumni-founded startups
Talent movements Hidden — book a demo in · Hidden — book a demo out past 12 months

Source: Dealroom Talent Intelligence.

Global footprint

Workforce and web traffic by country
Workforce by country
8 countries with
team presence
🇬🇧 United Kingdom81.6%
🇺🇸 United States2.6%
🇩🇪 Germany2.6%
🇪🇸 Spain2.6%
🇳🇱 Netherlands2.6%
Top 5 of 8 shown

Market sentiment

Posts on X, past 7 days

An AI-synthesised read of the highest-engagement posts about Naked Energy on X, ranked by likes and reposts, corporate channels excluded.

Reading the room on X — pulling top posts and synthesizing themes…

Source: X recent search ranked by engagement (likes + retweets) · Synthesis by Claude · Cached for 1 hour

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