They are. Buckrams, bear’s or wild garlic (allium ursinum) is in fact not “wild” garlic (allium sativum).

I just recognised the stripe pattern.

Could also be from an Eurasian Yay? But I don’t know your location.

The 600000 € probably include the development cost. Thus, on a larger scale, the cost per unit length will decrease significantly.

The heat is probably stored in water by using a simple counter flow heat exchanger. So at night they are using the ‘cool’ ground water for cooling and during the day, they are using the ‘warm’ ground water for heating, probably involving a heat pump.

Please don’t use honest workers as an insult.

We can say thank you to Peter Altmaier for heavily harming the German solar and wind energy industry.

In large power plants, e.g. block D of natural gas power plant Emsland, you can get almost 60 %, but that’s neither the standard for power plants, which was like ~28 % in Germany a few years ago, nor is the technology applicable for small scale devices as e.g. car engines.