The power of the sun represents an environmentally-friendly source of energy and solar technology is an important option for future energy provision. Solar-powered products are a good example of how energy can be generated and utilised using renewable systems. The Blue Angel is used to label solar-operated products and solar collectors.

Solar power saves money

While conventional energy generation with fossil fuel-fired power plants or nuclear energy utilises finite resources and creates harmful emissions, solar energy represents an infinite CO2-free source of energy. Solar collectors are central components of a thermal solar power plant and enable you to produce hot water in your home. The environmental label identifies particularly energy-efficient solar collectors and is designed to promote the broader use of solar power plants e.g. for producing hot water. Heat pumps also use renewable heat sources and thus preserve fossil fuels. The Blue Angel evaluates the energy efficiency of heat pumps using a performance factor in which the global warming potential of the refrigerant is included in the calculations.

Heating systems that also generate electricity for buildings

Combined heat and power plants (CHP) do not only generate heat for the heating of hot water systems but can also cover a building's electricity requirements. Their combined generation of electricity and heat (cogeneration, CHP) means that they represent an efficient form of energy conversion and are particularly suitable for decentralized locations.

Renewable fuels

Modern wood pellet stoves and heating boilers for wood pellets and wood chips have offered an alternative to fossil fuel heating for a number of years. As a result of their high level of automation and the use of fuel with a uniform quality, wood pellet stoves enable the efficient and low emission use of renewable fuels for heating purposes. Stoves awarded with the Blue Angel ecolabel fulfil strict requirements for efficiency, auxiliary current requirements and the emission of nitrogen oxides, carbon monoxide, dust and total carbon. In the case of wood pellets and wood chips, the Blue Angel ecolabel sets high standards for the quality of the products, their origins and production. The raw materials come from natural types of wood using sustainable forestry management. The criteria for their production include energy efficiency and low dust emissions when drying.