Those are good graphics. Regarding the assumptions about the “savings” from CFL bulbs: 1)Incandescent bulbs are about 25% (not 10%) as “efficient” (with respect to emitting visible light) as CFLs; and, 2) “Savings” only accrue during non-heating season — when space heating is required, incandescent bulbs are 100% efficient.
IOW, the benefits are even smaller than the diagrams show.
Thanks...that info makes the point even better. (I can’t remember where I got that 10% number from, but it could have been some government report where they were trying to make CFLs sound even better...)