Heat pump – heating, cooling and hot water in one

This exemption allows you to use waste as fuel to produce heat or power. Source: Waste exemption: U4 burning of waste as a fuel in a small appliance – GOV.UK

energibrønn Source: Jordvarme: Hvordan fungerer jordvarme? | Thermia

You would think that the more sunlight that hits a solar panel, the better. When it comes to efficiency though, that’s not the case – as photovoltaic cells heat up their efficiency decreases. To capture that heat and put it to good use, a team of scientists from Brunel University London has created a hybrid…