I don't know any 7D2D player who doesn't use electricity, and I know a lot of players. Obviously 90% of players will be casual players, please, don't tell me that you care more about casual players who play your game and move on than players who dump thousands of hours of their life in 7D2D.
Also the fact that it took several years for you to finally play and reach high enough level to balance electricity is not good for the future of this game - you need at least someone on your team who knows the end game inside out otherwise we need to mod game heavily to enjoy it.
And lastly, from my experience players spend more than 80% of their playtime at 150+ level. So, please, add difficulty levels above insane with something crazy