they amounted to politicians dictating technology choice. Badly. A lot of what has been built was, and will forever be, complete lunacy. Rooftop solar in northern europe is never, ever, going to make sense.

Even rooftop solar PV makes sense, if you factor in the growth of manufacturing and supply chain dynamics coming from a standing start of zero. (This is the function of variable tariff rates.)  Of course rooftop PV manufacture and installation in Greece will be one of the pillars of their recovery, with far higher efficiencies than in Hamburg.

Passive solar rooftop water heating, even in Bremen, is always in play. And if you must use the word lunacy, use it where it best applies, to a civilization which hides true cost.

"Life shrinks or expands in proportion to one's courage." - Anaïs Nin