Category: Renewable Energy – The Facts


‘Renewables are the way of the future’ – 20 years ago, this was a minority opinion. Back then, our energy supply came from fossil sources (coal, oil and gas) and from nuclear power. Power providers did not believe that solar energy could ever make up a large share of the pie and merely spoke of […]

Plus-energy houses

Generally, homes are energy consumers, not producers. They need heating energy and electricity, which they get from outside. But a model project in Freiburg, Germany, turns the table. The houses in the Solar Estate neighbourhood not only cover their own energy demand, but also export excess elec­tricity to the grid.23 The technologies in this residential […]