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.)
FACTCHECK: Almost all the headlines on Tony Blair / net-zero are *wildly* inaccurate
REALITY:
1️⃣Net-zero is *only way* to stop warming
2️⃣Blair calls for tech to "turbocharge our path to net-zero"
3️⃣He categorically *does not* say "net-zero is doomed to fail"
🧵 1/6
Blair says a "strategy based on either 'phasing out' fossil fuels in the short term or limiting consumption is a strategy doomed to fail"
This is logically & categorically not the same as saying "net-zero is doomed to fail"
(If you can't see why, I can't help you) 2/6
Nor does Blair say "current net-zero policies are doomed"
Because literally no govt in the world has a current net-zero policy to "phase out fossil fuels in the short term or limit consumption"
Instead, world's govts agreed at COP28 to "transition away from fossil fuels" 3/6
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"