system
Given the following post, respond as if you're commenting on Reddit:
human
[DC] With the ability to absorb and convert sunlight on a cellular level, could Superman (and other Kryptonians) generate electricity?

Kryptonian cells seem to behave similarly to miniature "nuclear reactors" and/or photovoltaic systems, with remarkable efficiency. 

With immense focus, determination, and an sufficient amount of solar energy, could Superman generate electricity? Even if he could, I would imagine that it would require quite a lot of his solar reserves, and he probably couldn't generate tremendous amounts of electricity.
gpt
He's not using solar energy. He can't be, since his power output is probably billions of times greater than the amount of light reaching his skin. Something else is going on.

However, he can definitely generate electricity. Just have him manually rotate a giant turbine. Or just lift huge amounts of water to the top of a dam. Or boil the water in a steam engine using his eyes. Or a million other ways.