Power generation

[imdutch21]

I'm thinking of a generator that slowly generates power depending on the plants/nature that's around it, so the more different plants the more power it generates.
Next is a generator that sucks the life our of plants and turns them into death plants. The plants should slowly turn a death color and eventually disappear or be turned into compost or something.
Another idea is to make a generator that reverse grows plants, maybe make it start when it's fully grown and then stop when the plant is back at 0. Maybe every stage it should generate less.
Last idea for now is a generator that sucks the life out of animals.
I want the player to be encouraged to use not nature killing ways of generating power