The transformation of our energy system from a fossil fuel-based to renewable-based system is key to limiting global warming to 1.5°C above pre-industrial levels. However, the massive and rapid expansion of renewable...
Estelle Gervais
Sina Herceg
Karl-Anders WeißSelected Posts
How do we get more heat pumps in existing buildings?
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...
Marek Miara
Is it better to combine a heat pump with fossil heating in some cases?
Episode 10 of a series on heat pumps in existing buildings that raises the question whether there is a benefit in installing a hybrid system in an existing building. To evaluate the usefulness of hybrid systems, we...
Is it worth waiting for technological developments before switching to a heat pump?
Episode 9 of a series on heat pumps in existing buildings Whether it’s worth waiting any longer to install a heat pump depends on two considerations: Is the technology at today’s level ready for satisfactory...
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Isn’t heating with heat pumps too expensive?
Episode 8 of a series on heat pumps in existing buildings with economic considerations on operating costs However ecologically sound a technology may be, it will only gain acceptance if it brings economic benefits to...
How well have heat pumps performed in practice in partially refurbished and unrefurbished buildings?
Episode 6 of a series on heat pumps in existing buildings with two exemplary houses Good examples make complex topics more accessible. But what would be a “good” example of an old building with a heat pump...
How much does the use of back-up heaters reduce the efficiency of heat pumps?
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...
