Sustenance - the first expression that came to my mind in this context was "sustainable energy"
. So I went to the hydroelectric power plant in Birsfelden
to take my panorama. It is located just a little upstream of the city of Basel, in the river Rhine. The four turbines located in the buildings with the zigzag roof produce 17% of the electricity used in the Greater Basel Region.
Due to it's geographical location Switzerland is in the privileged situation to produce 60% of the electricity by hydropower plants. Hydroelectricity has many advantages over other energy sources (no release of CO2, no waste). But as every energy source, it also has it's down-sides and impact on nature. Just mentioning one example, the weir crossing the river blocks any traffic across this line, including migration of fish. To sustain the migration of fish a fish-ladder
has been installed.
The road on top of the weir is open for walking and bicycles, sustaining a connection across the river.