Hank Green writes "A new kind of Solid Oxide Fuel Cell has been developed that can consume any kind of fuel (from hydrogen to bio-diesel) that is over two times more efficient than traditional generators. Acumentrics is attempting to market the technology both to off-grid applications (like National Parks) and also for home use as personal Combined Heat and Power plants that are extremely efficient (up to two times less carbon-intensive than grid power.)" Link to Original Source
I cannot conceive that anybody will require multiplications at the rate
of 40,000 or even 4,000 per hour ...
-- F. H. Wales (1936)