Page 100 - Low Temperature Energy Systems with Applications of Renewable Energy

Effective use of heat pumps for various heating applications 89

Fig. 3.1 An energy efficient house [Hibbs homes: green home builders, https://www.
hibbshomes.com/green-home-builders-st-louis/].

Fig. 3.2 The European Parliament building in Strasbourg [From Wikimedia Commons, the free
media repository, Photo by Octavio Espinosa Campodonico].

In Germany, according to the BWP (Budesverband Warmepumpe e.V.) in 2017,
78,000 heat pumps were sold and installed in the building heating sector. The greatest
number of installed heat pumps are air-to-water type (55,000 units), i.e., 71% of the
market. As for heat pumps of the “ground-to-water" type, 23,000 units were installed,
i.e., 29% of the market. There were 91,500 heat pump units were in operation in Ger-
many in 2017.
The “20-20-20 Program” adopted by the European Union stimulates the use of heat
pumps in building heating systems. The targets to be achieved by the year 2020 for this