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

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


  • Electricity transfer and storage:
  • Inverter technology,
  • Large battery systems,
  • Network control technology,
  • Power-to-gas technology,
  • Small battery systems
  • Commercial and industrial refrigeration / centralised heating, ventilation and air conditioning:
  • Aircooled /watercooled chillers,
  • Condensors and evaporators,
  • Cooling towers,
  • Heat exchanger technology,
  • Ice bank technology,
  • Industrial heat pump technology,
  • Refrigeration plant technology and equipment
  • Compressed air plant engineering /compressed air systems:
  • Air compressor technology


  • Energy supply & distribution (thermal and electrical):
  • Renewable power generation
  • End user / consumer:
  • Household appliances