Geothermal Companies in Spain

Geoatlantic is a geothermal energy research and development initiative operating across the Atlantic Arc region, focusing on geothermal heat pump technology, local capacity building, and energy transition support for communities in Scotland, England, France, Portugal, and Spain.

i1Solar specializes in solar photovoltaic installations and heat pump systems for residential and commercial clients in the Basque Country. The company provides end-to-end services including system design, installation, permitting, grant application assistance, and post-installation monitoring.

Vaillant manufactures heating, cooling, and hot water systems including heat pumps, boilers, air conditioning, and aerothermal/geothermal solutions for residential and commercial applications.

Solsierra is a Spanish renewable energy installer specializing in residential and collective solar photovoltaic systems, aerothermal heating, and electric vehicle charging solutions. The company operates as a founding partner of CE Sierra, a community energy coalition, providing turnkey installations with permitting and subsidy management.

Engineering and consulting cooperative specializing in photovoltaic solar systems and energy communities. Since 2009, Civicenergy has supported renewable energy transition through democratic, equitable, and sustainable community energy projects globally.

EU-funded Horizon Europe research project developing a novel CO2-based electrothermal energy storage system combining transcritical CO2 cycles, geological CO2 storage, and geothermal heat extraction for renewable energy dispatchability and permanent CO2 sequestration.

Spanish coalition uniting energy community initiatives, organizations, and civil society actors to advance just energy transition toward 100% renewable energy with citizen participation and decentralization.

Spanish installation company specializing in renewable energy systems including solar, geothermal, and aerothermal installations. Over 25 years of experience in plumbing, heating, and sustainable energy solutions.

Desigenia specializes in hybrid energy systems and modular solutions for off-grid and remote sites. The company designs and deploys renewable energy systems, including photovoltaic and hybrid configurations, with integrated operation and maintenance services.

Fotovoltaica Polaris specializes in solar panel installations and aerothermal systems in Granada. The company provides photovoltaic solutions and heat pump installations for residential and commercial clients, focusing on energy efficiency and sustainability.

Spanish engineering and installation company specializing in integrated multi-technical services including renewable energy, HVAC, electrical systems, fire protection, and smart building management across industrial, commercial, and institutional sectors.

Spanish public foundation providing training and technological services in renewable energy, mining, civil works, and environmental sectors since 1989. Operates specialized facilities with installations for solar, wind, geothermal, and biomass energy systems.