On 18/05/2021 17:49, Steve Walker wrote:
On 18/05/2021 16:56, AJH wrote:
On 18/05/2021 14:34, John Rumm wrote:
What always intrigues me about pieces like that, is how they all
gloss over the fact that the renewables industry in the UK is
dependant on gas for balancing load and intermittent supply.


Surely the reason for not having domestic gas boilers is thatÂ* there
is far more utility in burning it in a combined cycle electricity
generator, possibly linked to some district heating than just heating
water up to 80C and circulating it. Thus some may still be available
to fill in the gaps renewables leave.

Not really when modern condensing boilers are up to 94% efficient -
which is significantly better than even combined cycle generators ...
and that's before transmission losses of around 20%.


Your 94% efficient boiler just produces heat, the combined cycle
generator turns 60ish% of that heat into electricity that is
dispatch-able and a deal of the low grade heat at 50ishC could be used
in district heating. If the trend is to go electric there is far more
utility in generating electricity from gas when the grid demands it
that using it in domestic boilers.