Tommy Cookers wrote: ↑04 Dec 2018, 21:25
today's news (to me) is Drax Repower
using 2 existing 600 Mw steam turbine power generation sets in combined cycle with 4 new gas turbine power gensets
over 60% efficient giving 3600 MW with no more CO2 emissions than the existing (occasional) coal firing gives for 1200 MW
plus 200 MW to/from batteries
today there's protests ....
and now more protests ....
though Drax says Repower will bring UK carbon reduction forward another 2 years
Biofuelwatch says Drax woodburning doesn't reduce warming emissions as it increases biosphere methane/carbon release ...
and gas-fired power stations aren't 'twice as clean' as coal-fired because .....
'only' 3% methane loss to atmosphere in 'gas production' would negate the whole carbon benefit of gas-firing
(methane being 25x as warming as CO2)
true the loss in production by UK fracking would be significant
afaik 4% loss in production would be necessary to negate Repower as it's combined cycle not simple cycle
Biofuelwatch are crazies because ......
they say all UK energy (they mean UK electricity) should and could come from solar and wind farms and tidal power
in this they are conspiring with all the others to behave as if humankind doesn't need heat to live
(electricity is 17.5% of total UK final energy - heat energy need is far more than electrical energy need)
a recent report to the UK CCC says new homes from 2025 shouldn't be allowed to connect to the gas main ....
unless they have huge gardens sufficient for heating by ground source heat pumps they ....
should be small with people packed in hundreds around communal recycle-fuelled combined heat-and-power schemes
wouldn't that be nice !