Top 81 Green Energy startups in Germany
Feb 09, 2026
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17
1
Funding: €18.5M
Greenlyte Carbon Technologies is developing a low-temperature process for directly capturing carbon dioxide from the air and e-fuel production. The startup has built its own pilot plant, which captures 40 tons of carbon dioxide from the atmosphere annually and produces approximately 5 tons of synthetic natural gas. The plant is based on Greenlyte's LiquidSolar platform for producing environmentally friendly molecules. The technology combines carbon capture with syngas production - a mixture of hydrogen and carbon monoxide that can be converted into various e-fuels, such as LNG, e-methanol and sustainable aviation fuel (e-SAF). Greenlyte plans to build a large-scale e-methanol plant in Marl, Germany, by 2027.
Greenlyte Carbon Technologies is developing a low-temperature process for directly capturing carbon dioxide from the air and e-fuel production. The startup has built its own pilot plant, which captures 40 tons of carbon dioxide from the atmosphere annually and produces approximately 5 tons of synthetic natural gas. The plant is based on Greenlyte's LiquidSolar platform for producing environmentally friendly molecules. The technology combines carbon capture with syngas production - a mixture of hydrogen and carbon monoxide that can be converted into various e-fuels, such as LNG, e-methanol and sustainable aviation fuel (e-SAF). Greenlyte plans to build a large-scale e-methanol plant in Marl, Germany, by 2027.
2
Funding: €4.2B
Enpal is a photovoltaics leasing firm that provides solar power systems for homeowners with no money upfront.
Enpal is a photovoltaics leasing firm that provides solar power systems for homeowners with no money upfront.
3
Funding: €918M
SunFire manufactures solid oxide electrolysis cells (SOECs) that produce clean hydrogen using high-temperature electrolysis. These electrolyzers split steam into hydrogen and oxygen at temperatures of approximately 800°C, using electricity and heat to achieve electrical efficiency 25-30% higher than alkaline or PEM electrolyzers. They reduce energy consumption by utilizing waste industrial heat, reducing the levelized cost of hydrogen for large-scale production. Sunfire systems are used in industrial projects, such as the world's largest multi-megawatt solid oxide electrolysis complex at the Neste refinery.
SunFire manufactures solid oxide electrolysis cells (SOECs) that produce clean hydrogen using high-temperature electrolysis. These electrolyzers split steam into hydrogen and oxygen at temperatures of approximately 800°C, using electricity and heat to achieve electrical efficiency 25-30% higher than alkaline or PEM electrolyzers. They reduce energy consumption by utilizing waste industrial heat, reducing the levelized cost of hydrogen for large-scale production. Sunfire systems are used in industrial projects, such as the world's largest multi-megawatt solid oxide electrolysis complex at the Neste refinery.
4
Funding: €652M
1Komma5° is aiming to offer households everything needed for a carbon neutral home, including energy storage, charging infrastructure for electric vehicles and solar.
1Komma5° is aiming to offer households everything needed for a carbon neutral home, including energy storage, charging infrastructure for electric vehicles and solar.
5
Funding: €259M
ZOLAR is an online provider of solar systems enables the entry into the private energy supply for private households.
ZOLAR is an online provider of solar systems enables the entry into the private energy supply for private households.
6
Funding: $250.1M
Tado° offers smart thermostats and apps that adjusts to the real-time behavior of residents in private homes and small businesses.
Tado° offers smart thermostats and apps that adjusts to the real-time behavior of residents in private homes and small businesses.
7
Funding: €207.5M
ENVIRIA offers companies easy and safe access to scalable energy-as-a-service solutions and the renewable energy ecosystem.
ENVIRIA offers companies easy and safe access to scalable energy-as-a-service solutions and the renewable energy ecosystem.
8
Funding: €208M
INERATEC provides sustainable fuels, gas-to-liquid, power-to-gas, and power-to-liquid application products.
INERATEC provides sustainable fuels, gas-to-liquid, power-to-gas, and power-to-liquid application products.
9
Funding: €196.5M
Proxima Fusion creates new types of power plants using stellarators that optimised to create magnetic cages for high-energy particles.
Proxima Fusion creates new types of power plants using stellarators that optimised to create magnetic cages for high-energy particles.
10
Funding: €165.3M
Its innovative approach to fusion energy sets Marvel Fusion apart from its competitors. Instead of relying on temperature to reach fusion conditions, Marvel Fusion uses particle acceleration, making the approach much more efficient than conventional thermal approaches to fusion.
Its innovative approach to fusion energy sets Marvel Fusion apart from its competitors. Instead of relying on temperature to reach fusion conditions, Marvel Fusion uses particle acceleration, making the approach much more efficient than conventional thermal approaches to fusion.
11
Funding: $169.2M
Sonnen is a German-based pioneer for intelligent lithium based energy storage. The sonnenBatterie is not just a battery, it's an intelligent storage system that automatically adjusts the energy usage in your household. In combination with solar panels the sonnenBatterie will enable you to supply yourself with clean energy – thus making you independent and protecting you from energy price hikes.
Sonnen is a German-based pioneer for intelligent lithium based energy storage. The sonnenBatterie is not just a battery, it's an intelligent storage system that automatically adjusts the energy usage in your household. In combination with solar panels the sonnenBatterie will enable you to supply yourself with clean energy – thus making you independent and protecting you from energy price hikes.
13
Funding: €124.9M
instagrid is a provider of portable battery storage to easily create mobile power infrastructures.
instagrid is a provider of portable battery storage to easily create mobile power infrastructures.
14
Funding: €78.9M
ecoworks uses industrial prefabrication, digital processes, and energy systems to modernise multi-family houses with up to four floors within a few weeks. During the renovation process, the building is converted into “a small, decentralised power plant” by installing photovoltaic systems, heat pumps and thermal reservoirs.
ecoworks uses industrial prefabrication, digital processes, and energy systems to modernise multi-family houses with up to four floors within a few weeks. During the renovation process, the building is converted into “a small, decentralised power plant” by installing photovoltaic systems, heat pumps and thermal reservoirs.
15
Funding: €74M
Reverion produces highly efficient, reversible, carbon-negative power plants. In their process, excess generation from wind turbines and photovoltaics is converted into synthetic methane by electrolysis and can be stored. If needed, the same system can use the stored methane to generate an energy supply.
Reverion produces highly efficient, reversible, carbon-negative power plants. In their process, excess generation from wind turbines and photovoltaics is converted into synthetic methane by electrolysis and can be stored. If needed, the same system can use the stored methane to generate an energy supply.
16
Funding: $74.4M
Twaice is the new analytics platform for Battery Data. The company build virtual battery models and constantly collect data with smart control units. This platform provides all battery data in one place, offer on-demand reports, and predictive diagnostics. This indeed simplifies battery testing, improve lifetime and prevent downtimes.
Twaice is the new analytics platform for Battery Data. The company build virtual battery models and constantly collect data with smart control units. This platform provides all battery data in one place, offer on-demand reports, and predictive diagnostics. This indeed simplifies battery testing, improve lifetime and prevent downtimes.
17
Funding: €68.8M
VoltStorage is an electric storage device that can store clean solar power during the day to power your home at night. It will save you a lot of money, protect the environment and help to stabilize the grid.
VoltStorage is an electric storage device that can store clean solar power during the day to power your home at night. It will save you a lot of money, protect the environment and help to stabilize the grid.
18
Funding: €67M
Hydrogenious Technologies develops innovative solutions for safe and efficient hydrogen storage in liquid organic hydrogen carriers.
Hydrogenious Technologies develops innovative solutions for safe and efficient hydrogen storage in liquid organic hydrogen carriers.
19
Funding: $69.4M
Spot My Energy increases the value of smart power by making energy flows transparent.
Spot My Energy increases the value of smart power by making energy flows transparent.
20
MAN Energy Solutions enables its customers to achieve sustainable value creation in the transition towards a carbon neutral future.
21
Everllence develops power plant engines, turbines, compressors that use climate-neutral fuels to reduce carbon emissions. Its energy solutions include Power-to-X technology that converts electricity into carbon-neutral synthetic fuels, heat pumps, energy storage (CAES, LAES & CO2 battery) and thermal power plants. Everllence is a one-stop shop for thermal power solutions – providing everything from planning to operation of power plants. Its solutions run on fossil fuels as well as renewables like solar power, biomass, waste and geothermal energy. The company also develops carbon capture and storage technologies to ensure that unavoidable carbon emissions can be extracted from industrial processes safely. Through its subsidiary Quest One the company manufactures electrolyzers for producing green hydrogen.
22
Funding: $45.7M
Ostrom is an energy management platform that makes green electricity affordable and straightforward for households in Germany and Europe.
Ostrom is an energy management platform that makes green electricity affordable and straightforward for households in Germany and Europe.
23
Funding: €39.4M
Enter provides one-stop energy audits, procurement, financing & benchmarking for electrifying european homes.
Enter provides one-stop energy audits, procurement, financing & benchmarking for electrifying european homes.
24
Funding: €36.4M
trawa offers software solutions and matching electricity procurement services for businesses. The offering enables energy-intensive companies to access renewable energy from solar- and wind parks and helps them decarbonize their operations while at the same time saving cost and protecting themselves against future energy crises.
trawa offers software solutions and matching electricity procurement services for businesses. The offering enables energy-intensive companies to access renewable energy from solar- and wind parks and helps them decarbonize their operations while at the same time saving cost and protecting themselves against future energy crises.
26
Funding: $32.9M
Ecoligo is a solar utility that provides low-cost solar energy to businesses in emerging markets.
Ecoligo is a solar utility that provides low-cost solar energy to businesses in emerging markets.
27
Funding: €29M
Aedifion develops tools for the cloud-based processing of operating data from building automation systems.
Aedifion develops tools for the cloud-based processing of operating data from building automation systems.
28
Funding: €28.5M
Orcan Energy is a waste heat recovery tech company developing ORC platform technology to produce mechanical energy and electricity.
Orcan Energy is a waste heat recovery tech company developing ORC platform technology to produce mechanical energy and electricity.
29
Funding: €25.5M
Kraftblock is the energy storage, based on a bottom-up materials-development, which enables the energy transition to 100% renewables in an ecological and economical sensfull way.
Kraftblock is the energy storage, based on a bottom-up materials-development, which enables the energy transition to 100% renewables in an ecological and economical sensfull way.
30
Funding: $25.7M
Stabl Energy is a developer of a technology that significantly improves battery storage systems.
Stabl Energy is a developer of a technology that significantly improves battery storage systems.
31
Funding: €20M
Pacifico Energy develops photovoltaic plants and battery energy storage systems
Pacifico Energy develops photovoltaic plants and battery energy storage systems
32
Funding: €18.6M
Ecoplanet is an AI-powered energy management platform that helps industrial enterprises in their energy transition.
Ecoplanet is an AI-powered energy management platform that helps industrial enterprises in their energy transition.
34
Funding: €13M
Reonic is a software company that accelerates the energy transition economically and ecologically.
Reonic is a software company that accelerates the energy transition economically and ecologically.
35
Funding: €12.1M
Smalt is a Germany-wide installer of photovoltaic systems for private and commercial properties.
Smalt is a Germany-wide installer of photovoltaic systems for private and commercial properties.
36
Funding: €11.3M
MAGNOTHERM builds highly efficient and sustainable cooling systems based on magnetocaloric materials. Instead of climate-damaging or hazardous refrigerant gases, it uses a temperature-active metal in combination with water.
MAGNOTHERM builds highly efficient and sustainable cooling systems based on magnetocaloric materials. Instead of climate-damaging or hazardous refrigerant gases, it uses a temperature-active metal in combination with water.
37
Funding: €11.3M
MagnoTherm's cutting-edge energy conversion solutions allow cooling and heating with low pressure systems and is 40% more efficient than current systems.
MagnoTherm's cutting-edge energy conversion solutions allow cooling and heating with low pressure systems and is 40% more efficient than current systems.
39
Funding: $10.1M
SINN Power develops a wave energy converter to supply remote coasts and islands with low-cost, renewable energy from ocean waves.
SINN Power develops a wave energy converter to supply remote coasts and islands with low-cost, renewable energy from ocean waves.
40
Funding: $9.6M
Solytic is a leading international data-driven company focused on solar energy. It creates data-driven marketplace to optimize the allround performance of PV plants
Solytic is a leading international data-driven company focused on solar energy. It creates data-driven marketplace to optimize the allround performance of PV plants
41
Funding: $8M
Neutron Star Systems develops disruptive Electric Propulsion for Spacecraft based on first-of-its-kind SUPerconductor based Readiness Enhanced Magnetoplasmadynamic Electric Propulsion thruster
Neutron Star Systems develops disruptive Electric Propulsion for Spacecraft based on first-of-its-kind SUPerconductor based Readiness Enhanced Magnetoplasmadynamic Electric Propulsion thruster
42
Funding: €6.3M
Solarize provides SaaS for energy production, distribution and billing for commercial microgrids.
Solarize provides SaaS for energy production, distribution and billing for commercial microgrids.
43
As a digital utility, Next Kraftwerke is the operator of a Virtual Power Plant (VPP ) & a trader on various European power markets. The company also creates a sizeable digital platform of flexible power producers and consumers.
44
Funding: €5.5M
Hades Mining is a modern mining firm that puts technology first. By accessing ultra-deep and stable heat reservoirs beneath the Earth’s crust, it unlocks geothermal energy at a new scale.
Hades Mining is a modern mining firm that puts technology first. By accessing ultra-deep and stable heat reservoirs beneath the Earth’s crust, it unlocks geothermal energy at a new scale.
45
Funding: €5.1M
CAPHENIA is dedicated to producing renewable synthetic fuels through its Power-and-Biogas-to-Liquid (PBtL) process, which converts CO2 and biogas into fuel. This process, powered by renewable energy, aims to reduce carbon emissions by providing an eco-friendly alternative for powering existing engines and propulsion systems.
CAPHENIA is dedicated to producing renewable synthetic fuels through its Power-and-Biogas-to-Liquid (PBtL) process, which converts CO2 and biogas into fuel. This process, powered by renewable energy, aims to reduce carbon emissions by providing an eco-friendly alternative for powering existing engines and propulsion systems.
46
Funding: €5M
Vilisto’s flagship product is an intelligent, self-learning and fully automatic heating thermostat for non-residential buildings, with proven savings of more than 32%.
Vilisto’s flagship product is an intelligent, self-learning and fully automatic heating thermostat for non-residential buildings, with proven savings of more than 32%.
47
Funding: €4.7M
Phelas is developing an electricity storage system to use solar and wind power even when the sun is not shining and the wind is not blowing
Phelas is developing an electricity storage system to use solar and wind power even when the sun is not shining and the wind is not blowing
48
Funding: €4.4M
DABBEL controls the energy system in buildings using AI technology, reducing energy consumption and CO₂ emissions up to 40%
DABBEL controls the energy system in buildings using AI technology, reducing energy consumption and CO₂ emissions up to 40%
49
Funding: €4.2M
suena is a Hamburg based 100% digital flexibility trader for large-scale battery storage and renewable energies.
suena is a Hamburg based 100% digital flexibility trader for large-scale battery storage and renewable energies.
50
Funding: $4.3M
HyperHeat is developing the HyperHeat system, which utilizes renewable energy sources for high-temperature heating required in heavy industries such as steel production, cement and chemical processing. HyperHeat system is based on a low-cost industrial gas heater that utilizes oxide ceramics for ultra-high-temperature resistive heating. It can be installed in existing furnaces (instead of fossil-fuel burners) and achieve temperatures close to flame temperature - up to 2000°C. HyperHeat systems connect directly to standard industrial medium-voltage networks, scaling from hundreds of kilowatts to several megawatts, ensuring easy integration and maximum efficiency.
HyperHeat is developing the HyperHeat system, which utilizes renewable energy sources for high-temperature heating required in heavy industries such as steel production, cement and chemical processing. HyperHeat system is based on a low-cost industrial gas heater that utilizes oxide ceramics for ultra-high-temperature resistive heating. It can be installed in existing furnaces (instead of fossil-fuel burners) and achieve temperatures close to flame temperature - up to 2000°C. HyperHeat systems connect directly to standard industrial medium-voltage networks, scaling from hundreds of kilowatts to several megawatts, ensuring easy integration and maximum efficiency.
