Solvärmetechnik

Solvärmetechnik refers to technologies that harness solar energy to produce heat. This process is distinct from photovoltaics, which generate electricity from sunlight. Solar thermal systems typically involve collectors that absorb solar radiation and transfer the heat to a fluid, which is then used for various purposes.

The most common application of solvärmetechnik is for domestic hot water heating. In these systems, a fluid, usually a mixture of water and antifreeze, circulates through solar collectors mounted on a roof or other sun-exposed area. The heated fluid then flows to a storage tank, where it transfers its heat to the domestic water supply. This can significantly reduce the reliance on conventional water heaters powered by electricity or gas.

Another significant application is in space heating, where solar thermal systems can preheat air or water that is then circulated through a building's heating system. Larger-scale solvärmetechnik installations can be found in district heating systems, where a central plant collects solar heat and distributes it to multiple buildings. There are also industrial applications, such as process heat generation or solar cooling, although these are less widespread than domestic or district heating.

The efficiency and effectiveness of solvärmetechnik depend on factors like collector design, climate, and installation angle. While initial costs can be higher than conventional systems, the long-term savings in energy consumption and reduced environmental impact make it an increasingly attractive option for sustainable heating solutions.