UK govt has finally published details of its heat & buildings strategy, which will be out in full tomorrow
🎯new gas boiler ban* from 2035
💷£3.9bn funding inc £450m for heat pumps
📜shift levies off electricity bills over 10yrs
🔥decision on hydrogen heat in 2026
THREAD
First, why does this matter?
The UK's way off track against its legally-binding climate goals, inc net-zero by 2050 & the interim carbon budgets for late 2020s onwards
We can expect more on how govt expects to close gap tomorrow (?) w publication of delayed UK net-zero strategy
But heat and buildings probably the trickiest area in political terms: it's up close & personal, it could be disruptive – low-carbon heat's currently expensive
Overall, UK has made rapid recent progress thanks to nearly phasing out coal in power sector, but CO2 from homes is actually *increasing* making it the 2nd largest source of emissions after transport
Homes (largely their gas boilers) = 16% of UK GHGs
So what's in this new strategy?
🎯"Ban" on new gas boilers from 2035
Press release wording is loose, saying govt has a "confirmed ambition" that all new heating systems from 2035 will be low carbon
That's…not a ban
What does "confirmed ambition" mean?
Back in the Energy White Paper, govt said it "expected" new heating installs to be low carbon by the mid-2030s
Being a cynic, I'd say "confirmed ambition" is constructively ambiguous enough for all in Cabinet to agree to & to spin as appropriate
So…it's a ban! But also, not a ban!
Given press around this, I'm not surprised.
(+Basically if market/public treats as ban, it's a ban.)
(The press release stresses that "no-one will be forced to remove their existing fossil fuel boilers".
Anyone using the phrase "forced to rip out their boilers" should henceforth put £1 in the naughty jar.)
On to the funding…
💷 £3.9bn is…not anywhere close, even with existing spend, to making up the £9.2bn for home energy efficiency improvements pledged in the Tory manifesto
In terms of funding, £450m over 3yrs –at £5,000 per home– is just 30,000 installations/yr, barely an increase on current rates & WAY short of govt target for 600,000/yr by 2028 (it'd pay for 5% of that)
CCC says we need 100k/yr in existing homes to 2025
But govt making big play on innovation, with £60m to help make heat pumps as cheap as or cheaper than gas boilers by 2030 – with cost reductions of 25-50% "expected" by 2025
*If* that happens, need for grants falls away
(Here's the latest on current heat pump costs from @JennyC_Hill at the CCC)
Govt leaving a decision on hydrogen heat until 2026
By then, govt saying heat pumps 50% cheaper + being installed at scale…
Draw your own conclusions 🤷♂️
(Don't be surprised if there is nevertheless plenty of coverage around hydrogen heat tomorrow – I've personally received a bunch of press releases touting it as a solution for low-carbon heat.)
NEW: Official advisers CCC say UK shld cut emissions 87% by 2040
⚖️Net cost of net-zero 73% less than thought
💷Total cost to 2050 = £108bn (~£4bn/yr, 0.2% GDP)
🏡🚗H’hold energy/fuel bills to fall £1,400
🔌Electrification is key
THREAD: New UK govt contract with Drax biomass power plant
* 4-yr contract 2027-2031
* £113/MWh (2012 prices – £155 in today's money)
* Output cap of 6TWh (<2% of UK supplies, cf recent yrs 12-15TWh)
* CfD cost ~£500m/yr
* 100% of fuel must be "sustainable", up from 70% 1/5
UK govt says the contract helps security of electricity supplies, but gives Drax a "much more limited role than today" ie it's limited to run at roughly 25% of its max output
This means it's mainly going to be running when it isn't windy
Drax has had issues with existing 70% sustainable sourcing rule, but as it'll need less than half the fuel it has been buying to date, the new 100% rule looks more achievable
Notably, new contract terms allow govt to reclaim subsidy if rule not met
UK electricity generation from fossil fuels has more than halved in a decade, falling to 91TWh in 2024 – the lowest level since 1955 and making up the lowest ever share of the total, just 29%
Meanwhile, renewable output has more than doubled, up 122% since 2014 to 143TWh 2/9
The UK has cut gas-fired electricity generation by 13% in a decade – even as it was phasing out coal power – thanks to rising renewable output (mainly wind), along with lower demand + higher imports
UK opened the world's first coal power plant in 1882 on London's Holborn Viaduct (pic)
⛰️ Since then, UK coal plants have burned 4.6bn tonnes of coal, emitting 10.4GtCO2
🌍 That's more CO2 than most countries have ever emitted, from all sources (!)
But the UK was the world's first "coal-fired economy" – and that started long before coal-fired power
🥤Coal fuelled pumps to drain mines to get more coal
📈And as steam engines got more efficient, it got cheaper to use and extract ever more of the fuel, inspiring "Jevons paradox"
Let's begin with the facts. Andrew doesn't say so, but I am going to assume he is (correctly) quoting data from Montel Analytics, showing that UK electricity imports were 18.9TWh in H1 2024, up 82% from H2 2023