The claim that PV modules require more energy for their production than they can ever generate has been disproved by science a while ago. With energy payback times (EPBT) of a few months or years depending on...

Final episode of a series on heat pumps in existing buildings: We should have courage to bet on the right technology “The signs are unmistakable. […] the cost of inaction is — keeps mounting. […] We have to move quickly...

Episode 11 of a series on heat pumps in existing buildings focuses on heat pumps in multi-family houses. Heat pumps are required in multi-family houses Heat pumps have a very wide range of applications. The building...