Jordvarme: Hvordan fungerer jordvarme? | Thermia
energibrønn
energibrønn
Source: BIOROCK, den beste aerobiske kloakkbehandling – uten elektrisitet, ingen energitilførsel behøves. 25 års garanti! – BIOROCK Norway
Perovskitt gjør vanlige silisiumsolceller mer effektive. Source: Et billig materiale kan øke solcelleeffekten med 50 prosent – Tu.no
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…
Får den i september:-)
Source: Energy Resources and Energy Efficiency – Bulgarian Academy of Sciences