Hey guys,
I had an idea for the opposite of the mass fabricator which produces energy from mass.
Why not have the opposite. A generator which when placed will start consuming blocks around it (maybe in a 10 block radius) to produce energy until there are no more blocks left to remove. Also it should be working faster and maybe twice as efficient when putting scrap in it just like the mass fabricator.
It should obviously be quite an expensive machine, for example consisting of 3 iridium plates, a generator, two diamonds and wires/circuits...