Top 81 Green Energy startups in Germany
Jan 17, 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
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.
