Shallow Geothermal Systems for Residential Use: B2B Distribution to Installers in Spain Shallow Geothermal Systems for Residential Use: B2B Distribution to Installers in Spain Spain’s renewable energy sector is experiencing unprecedented growth, with geothermal installations increasing by 23% year-over-year according to the Spanish Association of Renewable Energy (APPA). Yet shallow geothermal systems remain dramatically underutilized […]