Product Reports Resources Pricing Login Book a demo
COMPANY PROFILE

Thermophoton

Explore full profile

Providing energy storage and dispatchable heat and power solutions

Las Rozas de Madrid, SpainFounded 2021Energy
Headcount <100 Current team size
Total funding $0–10M Disclosed equity funding
Unlock exact values This page shows ranges. Dealroom has the exact numbers for Thermophoton and the history behind them.

About Thermophoton

Thermophoton, a spin-off from the Technical University of Madrid, was established in 2021 to commercialize a novel energy storage solution. The company's genesis dates back to 2012, with research and development projects on high-temperature thermal energy storage initiated at the university. A significant milestone was the AMADEUS project, funded by the European Commission starting in 2017, which aimed to develop a new generation of materials for ultra-high temperature energy storage and conversion. This foundational research led to the formal creation of Thermophoton by a team of researchers and business professionals.

The leadership team’s expertise is central to the company's direction. CEO Carlos Bermejo brings financial acumen and experience in commercializing disruptive technologies and industrializing production processes. CTO Alejandro Datas has a profound background in the core technology, holding a Ph.D. in Electrical Engineering with a research focus on very high-temperature thermal energy storage and thermophotovoltaic (TPV) conversion, supported by over 40 scientific publications and 5 patents.

Thermophoton is focused on decarbonizing the heat and electricity sectors through its Power-to-Heat-to-Power storage technology. The system addresses the intermittency of renewable energy sources by converting surplus electricity into thermal energy. This is achieved by melting silicon alloys at temperatures exceeding 1000°C. The stored heat is then converted back into electricity on demand using thermophotovoltaics (TPV). This process provides dispatchable heat and power, aiming to offer a more cost-effective and long-duration storage alternative to conventional Li-ion batteries. The technology leverages the low cost and high energy density of silicon alloys.

The company's business model targets two primary market applications. The first is 'front of the meter' (FTM), where the solution can participate in grid balancing, manage trading positions, and sell flexibility in energy markets. The second is 'behind the meter' (BTM), helping clients with on-site renewable generation to enhance self-consumption, reduce electricity bills, and meet local electricity and heating demands. As the technology is still in development, commercial products and services are not yet available, with the current focus being on scaling and market entry validation.

Source: Dealroom company data

At a glance

Status
Operational
Founded
2021
Headquarters
Las Rozas de Madrid, Spain
Employees
8
Open positions
None listed
Dealroom signal
40.8/100
Sub-industry
Energy Storage
Sector
Energy, Spinout, Sustainable Development Goals, Thermal Energy Storage, Climate Tech, Stationary Energy Storage, Waste Heat Recovery, Long Duration Energy Storage, Horizon Europe, Industrial Electrification
Technology
Hardware, Deep Tech
Business model
Manufacturing
Client focus
b2b

Funding history

3 recorded events

Company financing events and reported valuations.

Deal typeDateAmountValuationInvestorsSource
GRANT✓Other financing Dec 2024 $358K — CDTI ↗
SUPPORT PROGRAM✓Other financing May 2024 $0 — Deeptech Madrid —
Showing the latest 2 of 3 recorded eventsBook a demo for the full funding history →

Growth signals

Thermophoton website traffic

Latest recorded traffic for Thermophoton is 80 monthly website visits, down 75% over the last three months. Thermophoton's team grew 0% over the past year.

Latest monthly visits80 3-month web change-75% 1-year team growth0%
Summary metrics are public; monthly history is available with a demoCompare with peers →

Similar companies

Closest operating peers by Dealroom taxonomy

Company identity and context are open; selected comparison metrics preview what is available on the platform.

CompanyHeadquartersStatusEmployeesTotal fundingValuation
MGA ThermalEnable the shift to renewable energy by providing a new way to store energy that’s clean, economical, and scalable Newcastle-Maitland, Australia Operational 39 $30M $52M
Eco-Tech CeramCommercializes the EcoStock, a standardised unit which allows to store and value industries lost heat and energy produced by the renewables Balma, France Operational
Brenmiller EnergyDevelops a storage-based generation system that combines thermal storage, inherent heat exchanging, and inherent steam generation in one unit Rosh Haayin, Israel Operational
Ore EnergyLow-cost, multi-day iron-air battery storage systems Amsterdam, Netherlands Operational
Electrified Thermal SolutionsElectrified Thermal Solutions, Inc. is developing the Joule Hive: a new energy storage technology that converts surplus zero-carbon electricity into heat Medford, United States Operational
Rondo EnergyOndo Energy makes industrial decarbonization possible via a Heat battery that captures low-cost renewable electricity and delivers continuous high-temperature heat, enabling customers to power their operations with zero-carbon energy Oakland, United States Operational
SilbatLong-duration molten silicon batteries for renewable energy Madrid, Spain Acquired
Found EnergyFound Energy develops rechargeable aluminum fuel power systems to eliminate carbon emissions from heavy industrial applications Boston, United States Operational
Showing 8 of the closest matchesCompare every metric →

Investments and acquisitions

Capital deployed

Recent portfolio relationships for companies that also act as investors or acquirers.

Investors

4 investors on the cap table

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

Seed1 investor entered at this stage

  • CDTI

Other known investors3 additional known investors

  • Deeptech Madrid
  • Technical University of Madrid
  • European Innovation Council
Team profiled 1 named & role-tagged
Founders Hidden — book a demo/100 quality score
Key operators Hidden — book a demo quality score
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
🇪🇸 Spain · Las Rozas de Madrid HQ
Book a demo for the full country breakdown

Market sentiment

Posts on X, past 7 days

An AI-synthesised read of the highest-engagement posts about Thermophoton 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

See Thermophoton’s full profile on Dealroom

Request a free trial to see the complete deal history, financials, people graph and growth signals.

Takes under a minute. Already use Dealroom? Log in.