In article ,
Clive wrote:
Whilst both are true, electricity has to be generated somewhere and
that's where the losses occur.

That's not important when comparing efficiencies of a power plant.
Otherwise you'd have to take into account transport and refining costs etc
of any fuel.

As for Petrol v Diesel, neither are
driven flat out for very long in the life cycles but the efficiency of
the unloaded Diesel far exceeds the unloaded Petrol at similar low
powers.

The trouble is that it's never like for like. Powerful diesels - like BMW
ones - with say six cylinders, designed for refinement and power rather
than outright economy, tend to narrow the fuel consumption gap
considerably. You pays your money...

--
*The fact that no one understands you doesn't mean you're an artist

Dave Plowman London SW 12
RIP Acorn