Heat pumps: Heat transport against nature requires work

From 2024, 500,000 new heat pumps will be installed annually in a developed Country in the European Union, according to several government officials (2023). And further: Heat pumps are to be a climate-friendly heat supply for households - unlike oil and gas. Nevertheless, it is approved according to federal laws: heating network, biomass, hydrogen governor, pellets - but with 65% renewable energies. Funding from federal funds, still in 2023, 75%, then 30%. And according to most suppliers, air source heat pumps are "much cheaper than geothermal and groundwater heat pumps". 500,000 new, essentially winter air-sucking heat pumps for heating houses. The heat pumps, whether with air, earth or wastewater as a warm source, basically have the task of transferring energy as heat from a "cold" to a "warm" environment and this costs, according to the energy balance for the cyclic process in the working medium, a corresponding energy, usually as work. However, with winter air as a heat source with a much lower efficiency than with warm water from sewage pipes.