Good news: In 8 years, electricity generation from non-fossil-fuel sources (including nuclear) rose by 44%
Bad news: In the same period, global electricity output increased 23% and generation by fossil fuels reached an all-time peak.
Electricity is (today) 20% of total energy consumption in the UK.
It will depend on how much electrification there is by 2030, such as heat pumps, electric transport etc.
There are a lot of planned offshore wind projects, but connection needs to speed up.
I guess I misunderstood.
"Labour will take up to £1,400 off the annual household bill and £53 billion off energy bills for businesses by 2030, by delivering a cheaper, zero-carbon electricity system by 2030."
I took that to mean we would have a 100% zero-carbon electricity system.
At that point it maybe, but there will be a lot of energy that will still be fossil fuels and that will need to be added.
Basically as much as possible needs to be electrified.
Good news is that installing heat pumps and using electric transport would cut total energy consumption by about 1/3.
I produced this chart a while ago, shows the distribution of energy usage and shows what would happen if all heating and ground transport were electric (shorter bar).