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SPOTLIGHT · Project

Turning CO2 and Sunlight Into Methane and Methanol Fuel Using Advanced Photonic Reactors

energyPrototypeTRL 4

Imagine using sunlight like a magnifying glass — but instead of burning ants, you're cooking CO2 and hydrogen together to make usable fuel like methane and methanol. SPOTLIGHT built a special reactor with tiny metallic particles (plasmonic catalysts) that soak up the full rainbow of sunlight and use that energy to drive the chemical reaction. During the night, efficient LED lights keep the process running 24/7. The result is a way to recycle carbon emissions into fuels we already know how to use — car fuel, chemical feedstock, energy storage — without needing massive land areas.

By the numbers
>10,000x
higher space-time-yield than conventional semiconductor catalysts
1 Mt/year
maximum CO2 source capacity per installation
800 Mt
estimated annual EU CO2 reduction potential
18%
of current EU annual CO2 emissions addressable
14.5 EJ
annual methane energy production potential in EU
21%
of EU current annual energy use equivalent
€393 billion
estimated value of EU methane production potential
13
consortium partners across 6 countries
5
industrial partners in consortium
The business problem

What needed solving

Industries that capture CO2 have limited profitable options for what to do with it — underground storage is expensive and generates no revenue. Meanwhile, Europe depends heavily on imported natural gas and chemical feedstocks, creating both an energy security risk and a missed economic opportunity worth hundreds of billions annually. Companies need a way to turn waste CO2 into valuable fuels using renewable energy, without requiring massive new infrastructure.

The solution

What was built

The project developed a transparent flow reactor optimized for light absorption in the catalyst bed, combined with secondary solar optics to concentrate natural sunlight, plus an LED light source for 24/7 operation. They also developed plasmonic catalysts capable of absorbing the full solar spectrum for CO2-to-methane (Sabatier process) and CO2-to-CO conversion (reverse water gas shift). A total of 16 deliverables were produced including a Virtual Reality dissemination tool.

Audience

Who needs this

Chemical companies producing synthetic methane or methanol from green hydrogenCement and steel plants with CO2 capture looking for utilization pathwaysRenewable energy developers seeking Power-to-X energy storage solutionsGas utilities exploring synthetic natural gas to decarbonize their gridOil refineries transitioning to green methanol production
Business applications

Who can put this to work

Chemical & Fuel Production
enterprise
Target: Chemical companies producing synthetic fuels or methanol

If you are a chemical company looking to produce green methanol or synthetic natural gas — this project developed a photonic reactor concept that converts captured CO2 and green hydrogen into methane and methanol using concentrated sunlight. The plasmonic catalysts achieve space-time-yields more than 10,000 times higher than conventional semiconductor catalysts, which means smaller reactors and lower capital costs for the same output.

Carbon Capture & Utilization
enterprise
Target: Industrial emitters with CO2 capture infrastructure

If you are a cement plant, steel mill, or power station capturing CO2 and looking for ways to monetize it rather than just store it — this project validated a process that converts CO2 into valuable methane and methanol fuels. The technology is designed for CO2 sources up to 1 Mt per year, making it a practical bolt-on for medium-scale industrial emitters.

Renewable Energy & Power-to-X
mid-size
Target: Renewable energy developers seeking energy storage solutions

If you are a renewable energy company struggling with curtailment and looking for long-term energy storage beyond batteries — this project built a sunlight-powered reactor that converts surplus green hydrogen and captured CO2 into methane compatible with existing gas infrastructure. The produced methane can serve as seasonal energy storage, avoiding the need for entirely new distribution networks.

Frequently asked

Quick answers

What would it cost to deploy this technology at an industrial site?

The project does not publish specific unit costs or pricing. However, the objective states that plasmonic catalysts achieve space-time-yields more than 10,000 times higher than conventional semiconductor catalysts, which the team says makes the concept 'economically much more attractive because of strongly reduced capital expenditures.' Detailed cost models would need to be discussed with the consortium.

Can this scale to industrial volumes?

The technology is designed for CO2 sources up to 1 Mt per year. The project estimates that EU-wide deployment could reduce CO2 emissions by 800 Mt annually (approximately 18% of current EU total) and produce 14.5 EJ of energy in methane — equivalent to 21% of EU annual energy use. However, the current project validated the concept at laboratory and prototype scale, not full industrial deployment.

What is the IP situation and can I license this?

SPOTLIGHT was funded as a Research and Innovation Action (RIA) under Horizon 2020, meaning IP typically stays with the consortium partners who generated it. The coordinator is TNO (Netherlands Organisation for Applied Scientific Research), a major applied research institute experienced in technology licensing. Licensing discussions would need to go through the relevant consortium partners.

How does this compare to existing Power-to-X technologies?

The key differentiator is the use of plasmonic catalysts that absorb the entire solar spectrum and achieve space-time-yields more than 10,000 times higher than conventional semiconductor photocatalysts. This means the process needs far less land area for scale-up compared to conventional photocatalytic approaches, and capital expenditures are significantly lower according to the project team.

Is the output compatible with existing infrastructure?

Yes. Both methane (CH4) and methanol (CH3OH) are fully compatible with current gas and fuel infrastructure. Methane can go directly into existing natural gas pipelines and storage, while methanol is already widely used as car fuel, energy carrier, and chemical feedstock. No new distribution networks are required.

What regulatory environment supports this?

EU carbon pricing (ETS), the Fit for 55 package, and renewable fuel mandates all create growing demand for CO2-derived synthetic fuels. The EU's Carbon Capture and Utilization strategy explicitly supports converting captured CO2 into valuable products. Based on available project data, specific regulatory certifications for the device itself are not detailed.

What is the timeline to commercial availability?

The project ran from January 2021 to June 2024 and is now closed. As a Research and Innovation Action, the technology likely reached prototype validation (TRL 4-5). Moving to commercial deployment would require further pilot-scale testing and engineering, likely requiring additional development time. The consortium includes 5 industrial partners who could accelerate this path.

Consortium

Who built it

The SPOTLIGHT consortium is well-balanced for a research project moving toward commercialization, with 13 partners from 6 European countries (Belgium, Switzerland, Germany, Spain, Italy, Netherlands). The 38% industry ratio — 5 industrial partners alongside 3 universities and 5 research organizations — shows genuine industry engagement. TNO, the Dutch applied research organization, leads as coordinator and has a strong track record of spinning out technologies into commercial licensing. The inclusion of 1 SME signals some entrepreneurial involvement, though the consortium leans toward large research-industrial players. For a business looking to access this technology, TNO as coordinator is an advantage — they are structured to facilitate technology transfer and commercial partnerships.

How to reach the team

TNO (Netherlands Organisation for Applied Scientific Research) — contact via SciTransfer for introduction to the right team

Next steps

Talk to the team behind this work.

Want to explore how sunlight-to-fuel conversion could fit your CO2 utilization strategy? SciTransfer can connect you directly with the SPOTLIGHT team and provide a tailored briefing for your specific use case.