Excellent piece by ⁦⁦@EmilyBeament⁩ on how the UK can turn from laggard to leader in clean heating.

THREAD 1/n standard.co.uk/news/uk/govern…
2/n The UK has committed itself to installing 600,000 heat pumps every year by 2028. To meet the target the installation rate needs to increase 25-fold. Here's how to achieve this.
3/n Existing policy is insufficient to deliver on the target and falls short by close to 50%. The gap is even larger to the @theCCCuk trajectory required for net zero.
4/n We will need a policy package consisting of 4 elements:

1) financial support especially for low-income households
2 structural reform of bills and stamp duty
3) regulatory backstop in early 2030s
4) all of this underpinned by robust governance framework
5/n A modest carbon tax of £50/t CO2 on heating fuels would be sufficient to fund the required heat pump uptake with subsidies tapering off over time as equipment costs fall.
6/n Levies and taxes on electricity versus gas need structural reform. The current set-up disincentives switching to heat pumps.
7/n Finally, a regulatory backstop in the early 2030s similar to petrol and diesel cars will provide the market with certainty and ensure we meet net zero.
8/n You can find more details on how to design a policy package for a heat pump mass market in our @RegAssistProj @e3g report coauthored by me with @heatpolicyrich @enfinnEU. raponline.org/knowledge-cent…

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More from @janrosenow

29 Jun
Major new German hydrogen study by @oekoinstitut for @StiftungKlima. Key role seen in industry, electricity system balancing, aviation & shipping. Very limited role for hydrogen in transport and buildings.

oeko.de/publikationen/…

THREAD 1/6
@oekoinstitut @StiftungKlima 2/6 Vehicles powered by fuel cells or synthetic fuels are non-competitive compared to battery-electric drives, even in the case of large passenger cars and high mileages. These vehicles could play at best a niche role with very low h2 prices and high electricity prices.
3/6 A somewhat more mixed picture emerges with regard to buses, rail transport and a share of long-distance heavy duty transport; in part, the relevant operating conditions beyond the cost calculation could play a role here.
Read 9 tweets
17 Jun
What is the least-cost pathway to decarbonise heating?
New @UCL_Energy @CREDS_UK research shows hydrogen-dominated heating would cost consumers 73% more compared to pathways relying on district heating and heat pumps.
THREAD 1/10
researchsquare.com/article/rs-629…
@UCL_Energy @CREDS_UK The whole UK energy system would cost 33% less if we follow heat pump and district heating pathways compared to a hydrogen-dominated pathway. 2/10
This is driven by significantly higher electricity requirements for hydrogen production. 3/10
Read 12 tweets
17 Jun
How we use electricity will become just as important as how we generate it.

Well said @emilygosden @thetimes.

thetimes.co.uk/article/green-…
We @RegAssistProj demonstrate how this can work for electric cars here: raponline.org/knowledge-cent…
And for electric heating here: raponline.org/knowledge-cent…
Read 5 tweets
15 Jun
The Renewable Energy Directive is up for review. Heating & cooling provisions require an urgent reform to meet the 2030 climate goal & avoid excessive use of unsustainable bioenergy. Our new @RegAssistProj report explains the problem the solution. 1/6 raponline.org/knowledge-cent…
Current ambitions by Member States to increase the share of renewables in the heating and cooling sector fall short on delivering the EU’s climate and energy goals with an expected share of renewables of heating and cooling of just 33% compared to the required 39-41%. 2/6 Image
There is currently no cap on any heating and cooling sources other than waste heat. As a result, biomass contributed 81% of the total amount of renewable heating and cooling target in 2018 and will continue to play a major role in 2030. 3/6 Image
Read 6 tweets
7 May
Fossil fuel industry representatives have suggested that, when it comes to decarbonising buildings, hydrogen is their get out of jail free card. No need to insulate buildings. Just replace the fuel.

Here's why their argument is deeply flawed and false.

energymonitor.ai/tech/built-env…
Thanks to @CarbonBrief @LeoHickman @DrSimEvans for sharing my article in today's Daily Briefing.
Read 5 tweets
7 May
THREAD: Where to use hydrogen and where not - new research by @PIK_Climate led by @FalkoUeckerdt just published in @NatureClimate provides merit order for hydrogen use.

Headline finding: Hydrogen is not recommended for use in cars and space heating. 1/n

nature.com/articles/s4155…
It all comes down to efficiency. Overall electricity-to-useful-energy efficiencies of hydrogen range from roughly 10% (light trucks) to 35% (boilers), which translates into electricity requirements that are 2–14 times higher than for direct electrification alternatives. 2/n
E-fuel mitigation costs are estimated to be €800–1,200 per tCO2. Large-scale deployment could reduce costs to €20–270 per tCO2 until 2050, yet it is unlikely that e-fuels will become cheap and abundant early enough. 3/n
Read 9 tweets

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