Its very weird that they first send it to the media and then upload it on indymedia. That is very unusual because its just not a good idea.
Also it was published by a group most likely not active anymore. Vulkangruppe was last mentioned in the yearly report of the state protection I think 2019. Also they didnt do any social media work. That could mean nothing but it is very out of character.
It might just be a false flag.
That happended before and apperantly it was russia but i dont belive that for a second. i think it is a false flag of the BND acting out a "false flag from russia". Thats all conspiracy theory now though.

I did not know they misspelled JD vance Name lol. Idk id have used ai to get rid of my ideolekt but apperantly they didnt do that.
Idk if it was the BND i agree with you after reconsidering thats unlikely.
For russia to have done that im missing a Motive.
My forther speculations:
A nazigroup around afd done that. Motive fuck leftists over as they use it to do propaganda. Records show that the AfD did a information requests about this exact energy grid point to our goverment.