Why do people get such strong feelings over electric cars and solar panels etc.

[rogerzilla]

Say what you like but I don't see steam replacing electric cars.

A reciprocating steam engine of typical non-condensing type is between 5 and 10% thermally efficient. The maximum theoretical efficiency with a 280psi boiler is only about 17%, most of the loss being in the cylinders; the incoming steam isn't all that hot in thermodynamic terms, and the exhaust steam isn't all that much cooler. Internal combustion was a huge leap in efficiency!

 

[Gillstay]

For many people I doubt it's a principal thing, more getting by each month / enjoying a holiday or two is higher on thier priorities?

Not everyone has £25k spare and to see it repay for itself over 25 years is a long investment.

Our solar hot water cost 4k. My mates panels were meant to pay back in 10 years, but electric went up and so it paid off in 7 yrs.