3U SOLAR Systemhandel AG

3U SOLAR Systemhandel AG is a provider of solar heating and cooling systems. The company is focused on both retail and wholesale of modules and components to support generation of renewable energy and warmth as well as storage and supply of heating power. Founded in 2009 and headquartered in Marburg, Germany, 3U SOLAR is a subsidiary of the stock market listed company 3U HOLDING AG. 3U SOLAR aims at setting new standards in the growing market of solar-based heating and solar energy generating solutions. Additionally, planning, realisation and operation of large solar power plants represent another key assignment of 3U SOLAR.

Further information

Type of Business

  • Manufacturing,
  • Wholesale / distribution,
  • Retail / sales


  • Energy efficiency in industry and trade: electricity sector:
  • Air compressor technology
  • Energy efficiency in industry and trade: heating and cooling sectors:
  • Aircooled /watercooled chillers,
  • Condensors and evaporators,
  • Cooling towers,
  • Heat exchanger technology,
  • Ice bank technology,
  • Industrial heat pump technology,
  • Refrigeration plant technology and equipment
  • Power grids:
  • Inverter technology,
  • Network control technology
  • Storage technologies in the electricity sector:
  • Large battery systems,
  • Small battery systems
  • Sector Coupling Technologies:
  • Power-to-gas technology


  • Electricity generation and heating/cooling:
  • Renewable power generation
  • Energy efficiency in buildings:
  • Consumer electronics