Episode 5 of a series on heat pumps in existing buildings Heating systems with heat pumps are usually equipped with a direct-electric back-up heater. Usually, the electric back-up heater takes over the heat supply from...
Articles from the category energy provision
Marek Miara
Does a house have to be renovated first in order to install a heat pump?
Episode 3 of a series on heat pumps in existing buildings Clearly, the less energy needed to create a comfortable indoor climate, the better. That’s why renovation measures to reduce heating energy demand always...
Are heat pumps able to deliver sufficiently high temperatures in the heating circuit?
Episode 2 of heat pumps in existing buildings: Why the maximum required temperature is not the decisive factor When discussing the possible use of heat pumps in existing buildings, the main counter-argument is the...
Heat pumps in existing buildings, a blog post series in 12 parts
Heat pumps are only suitable for new buildings or for buildings that have undergone an extensive energetical refurbishment! This is a common view that can be considered disproved in many respects today. Fortunately, one...
Andrea PfreundtGermany’s electricity mix from 2009 to 2019: This is what we get from our sockets
This year the German Renewable Energy Sources Act (EEG) has turned 20 years old. In the meantime, the former utopian idea of establishing a CO2 neutral energy system has turned into a realistic scenario. Even the...
Bruno Burger
Design Meets Efficiency – Innovative Coating for Colored Photovoltaic Modules
The global photovoltaic market is growing rapidly. While the optimization of the efficiency, service life and price has been the main focus of solar module development up to now, the appearance of solar modules is now...
Thomas Kroyer