The link goes to a limited list of initiatives with maximum potential supporters. The full list of 76 initiatives contains several on energy, but none on the planned solar cuts. (BTW, I find an intitiative for more competition on rail, with a call for total grid separation, found support... sigh.)

Searching the news, I found a single Pirate party communique on the solar cuts: back on 24 February, Thuringia's pirates voiced their opposition.

_{*Lunatic*, n.
One whose delusions are out of fashion.}