Quote:
"Unfortunately not possible. All but two of the lights in the house are the compact halogen type (see photo) and not cost-effectively changeable."

Are you sure? LED replacements are available for a lot of the traditional halogen/reflectors with base type like MR16. Not sure on payoff/ROI, but I wouldn't get stuck on 1 single ROI element if the overall goal is to get below a certain threshold that drops the who cost factor by half.

The billing system (and my guess at the rationale) seem to make sense.
_________________________
Jim


'Tis the exceptional fellow who lies awake at night thinking of his successes.