Biolabs now require nutrients for fuel. They still consume 300kW like before, but now it's 300kW of "yummy value" instead of electricity. For comparison, a biochamber consumes 500kW of nutrients.

This mod does not change the pollution generated by biolabs, which is still 8/m. (Biochambers actually reduce pollution, when they're on a planet that has pollution, such as Nauvis. Gleba has spores, not pollution.)