Pete C wrote:

On Sat, 8 Oct 2005 16:10:41 +0100, "Fred" wrote:


"OG" wrote in message
...


Yes, gas burned in the house has c100% efficiency at producing light+heat
(though the heat _was probably in the wrong place_). However, burning gas
in your not-so-local power station to produce electricity at +/- 50%
efficiency

Many years ago I was told the overall efficiency of generating power was in
the order of 25% taking into account generating and transmission
efficiencies. Does anyone have a link for overall electricity generation
efficiency in the UK.




Hi,

Came across this the other day which gives the grid efficiency as a
whole to be 30%:

http://www.powerwatch.org.uk/energy/graham.asp


Correction. It gives the grid efficiency as 92.5%. Its the power
stations that are inefficient.


How much that matters in the case of e.g. nuclear power, is a moot point.


cheers,
Pete.