I turned around and went back to take a picture of this vegetable and flower garden in the Neckar Valley ( traveling between the Schwarzwald and Rothenburg ob der Tauber (a wonderfully well-preserved and reconstructed medieval town.)
Check out the solar hot water panels sheltering the wood pile, with additional panels probably supplying energy for heat ! (This would also be via hot water, I think - there are modern hot water radiator units everywhere I've been during this trip.
With extensive solar panels everywhere, I've been wondering about what exactly they're powering. I passed an Aldi grocery today which had an entire roof of solar panels - presumably that's electricity for the whole store, but I'll need to do some research about this when I get home. Solar is so much more prevalent here - on farm buildings, residences, commercial buildings, etc. along with centralized stations with multiple panels.
And it's interesting, too, to see wind turbines in all sorts of places, some of them quite unlikely.
On another topic, I've been seeing lovely fields of leeks, so I was glad to see these in this garden, too.