[dml2135]

Is less efficiency okay though if selling back to the grid results in more clean energy overall?

[fluoridation]

Not if the added inefficiency totally consumes the added clean energy and needs further non-clean energy to sustain it. You could end up in a situation where taking energy from residential solar panels leads to burning more coal than if you hadn't done anything.

[mcronce]

Or natural gas...which has disastrous methane emissions all throughout the supply chain

[vkou]

Depends on what the trade-off is.

If that efficiency would have gone to shareholders, sure.

If that efficiency would have gone towards building utility-scale renewables, no.