"Set Square" wrote in message
...
In an earlier contribution to this discussion,
snip
Actually, I'd like to be able to generate *all* my electricity from gas -
not just in an emergency. Bearing in mind that the marginal cost per kWHr
of
(on peak) electricity is 3.6 times that of gas, I would save on fuel costs
as long as the overall conversion efficiency was more than about 27.5%
--
Cheers,
Set Square

Not as simple as it sounds :-)

You have to add in the cost of the equipment.

Much the same kind of sums as:

(a) converting a vehicle to LPG
(b) trading in a huge gas guzzler for a super efficient micro car

For (a) the payback is generally at least 20,000 miles. Given that, the
payback for (b) will probably be even further away, assuming you spend more
than £1200 on changing the car.

So our VW camper is still petrol and we still have the Volvo Turbo Estate
:-)

However I would be interested to see a costed example :-))

Cheers
Dave R