wrote in message
...
With a 125K Btu/gallon high heating value and a 10,000 hour engine
lifetime,
Honda EU2000 cogen looks less economical: if we burn 1.08 gallons of
gasoline
with a fuel value of 135K Btu in 4 hours at the 1600 W rated load and make
6.4 kWh (21.8K Btu) of electricity and 113.2K Btu of heat (another 33.2
kWh,
ie 39.6 kWh total) and the heat replaces electric resistance and the Honda
costs $899 (mayberrys.com) and wear adds $0.09/h, ie 5.6 cents/kWh, this
kind
of cogen only seems to make sense at an off-road gas price of $1.75/gallon
if
electricity costs more than 100x$1.75/39.6+5.6 = 10.7 cents/kWh.

Nick


Where can one buy "off-road" gasoline? I have seen off-road diesel for sale,
but never off road gasoline. I'd love to avoid road tax for gas that I buy
for my generator and boats.