Reply #14: Commercial has a higher lighting budget.

[skids]

Contrary to what one might expect, commercial sectors use a LOT of power on lighting. Poor architectural design. But yeah, basically the same measures as residential with the addition of natural light pipes.

Industrial isn't a sector I've looked much into. It's more complicated.

Transport is easy -- hybrids give a 30% reduction for personal autos and even S.U.V.s, the two largest users. Waste heat recovery could give another 10-20% boost. Of course the failure of telecommuting and the seeming insatiable appetite of CEOs for centralizing offices hasn't helped matters.