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Jonny Marshall

@jonnymarshall.bsky.social
1.8K followers 511 following 116 posts

Principal Economist at the Resolution Foundation @resolutionfoundation.org working on energy and climate policy

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Jonny Marshall @jonnymarshall.bsky.social · 10h
Gas prices jumping by nearly a quarter at the coldest time of the year is … not good news. Nearly half of annual gas use happens between January and March www.bbc.co.uk/news/article...
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Jonny Marshall @jonnymarshall.bsky.social · 29/09/2026
A good move. Within a decade, the cost of financing new assets – not fuel costs – will be the main driver of electricity prices: by 2035, capital is set to make up over half of power system costs, up from 8 per cent in 2025
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Zachary Leather @zackleather.resolutionfoundation.org · 22/07/2026
Today Burnham announced the return of the £2 bus fare cap, a much loved policy of previous Governments that was raised to £3 by Reeves two years ago. But who will benefit? [THREAD]
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Jonny Marshall @jonnymarshall.bsky.social · 21/07/2026
The Government has today announced that VAT on electricity bills will be cut from 5% to 0% from October, saving the typical household around £45 a year 1/
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Resolution Foundation @resolutionfoundation.org · 20/07/2026
New Prime Minister Andy Burnham said he would set out measures to help with the cost of living tomorrow, as the first policy act of his premiership. Crucially, he also said how he would pay for them. So, what cost of living measures should the new PM announce, and what’s to be avoided? 🧵
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Andy Bruce (Reuters) @bruceandy.bsky.social · 23/04/2026
Most interesting bit of the UK public finances data today: Fuel duty revenues dropped in March to their lowest since July 2023. Strongly suggests people were buying less petrol petrol last month.
Fuel duty revenues dropped in March to their lowest since July 2023.
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Resolution Foundation @resolutionfoundation.org · 22/04/2026
Is it time to cut the cord? Our latest substack from Jonathan Marshall and Matthew Cavanagh considers the Government's plans to 'de-link' gas and electricity prices ⤵️ buff.ly/4s3sowS
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Resolution Foundation @resolutionfoundation.org · 21/04/2026
🚨 New Substack The Government's plans to de-link gas and electricity prices represent an important step forwards, but as it stands the tax incentive needed to drive change may be too weak. Read more 👉 buff.ly/4s3sowS
resolutionfoundation.substack.com
Cutting the cord
Jonathan Marshall and Matthew Cavanagh dive into the details of the Government's plans to 'de-link' gas and electrcity prices.
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Jonny Marshall @jonnymarshall.bsky.social · 21/04/2026
The Government has made important progress in its plan to ‘de-link’ gas and electricity prices, but needs to beef up its tax threat if it wants to make good on them The @resolutionfoundation.org take on a big but underpowered announcement: resolutionfoundation.substack.com/p/cutting-th...
resolutionfoundation.substack.com
Cutting the cord
Jonathan Marshall and Matthew Cavanagh dive into the details of the Government's plans to 'de-link' gas and electricity prices.
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Jonny Marshall @jonnymarshall.bsky.social · 16/04/2026
Good to see removing the Carbon Price Support form part of this. Something @resolutionfoundation.org suggested way back in 2023
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Resolution Foundation @resolutionfoundation.org · 09/04/2026
We're hosting events in April to unpack the effects of war in the Middle East on the UK economy. The first will focus on the coming cost of living crunch, with Jeremy Hunt MP, @kellyipsosuk.bsky.social @dharavyas.bsky.social @jonnymarshall.bsky.social @ruthcurtice.bsky.social ⤵️ buff.ly/srukFo5
Advert for event on Monday 13 April 2026
from 9:30 am to 10:45 am
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Zachary Leather @zackleather.resolutionfoundation.org · 18/03/2026
England's first Land Use Framework is finally here. It's been a long time coming and there's a lot to welcome. But when it comes do decarbonising land it leaves lots of the trickiest details - on how to not just inform land use decisions but shape them - to future work www.gov.uk/government/p...
gov.uk
Land Use Framework
How we can use our land more effectively to increase the resilience of our homes, communities, infrastructure, and food systems, while speeding up development and restoring nature.
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Resolution Foundation @resolutionfoundation.org · 18/03/2026
Winter isn't coming quite yet, but the government should start planning now for a possible spike in energy bills this winter. In our latest susbtack, @jonnymarshall.bsky.social breaks down how the government should use the next few months to prepare a social tariff. ➡️
buff.ly
Preparing for the worst
Jonathan Marshall explains what the Government should be doing to prepare to protect families from rising energy bills – and why the petrol prices debate is a distraction.
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Jonny Marshall @jonnymarshall.bsky.social · 18/03/2026
🚨New @resolutionfoundation.org note out today on how Government can be ready to protect households from the squeeze this winter 1/ www.resolutionfoundation.org/publications...
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Jonny Marshall @jonnymarshall.bsky.social · 04/03/2026
What a difference a week makes. It's almost as though our entire energy system is based on something fundamentally unstable
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Ruth Curtice @ruthcurtice.bsky.social · 03/03/2026
Speech had surprisingly little on global context. Truth is Iran has the potential to put government cost of living plans completely off track. UK exposed to disruption to LNG supplies from Qatar. Impact of gas price moves so far if sustained would be over £500 increase in energy price cap in July.
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Jonny Marshall @jonnymarshall.bsky.social · 25/02/2026
Energy bills are finally starting to come down – the next price cap will be £117 (7%) lower than today's. Much-needed good news needed for millions of hard-pressed families🧵 www.bbc.co.uk/news/article...
bbc.co.uk
Energy bills to fall in April in price cap change and charges shake-up
Changes announced in the Budget mean all energy bills will see some kind of reduction, but it will vary.
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Resolution Foundation @resolutionfoundation.org · 24/02/2026
Tomorrow, Ofgem is expected to announce that the energy price cap for Q2 2026 will be nearly £120 lower than current levels. This policy will deliver a boost to living standards from April and should help to keep bills below current levels until at least 2029. Our analysis ➡️ buff.ly/zrvoZMp
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Jonny Marshall @jonnymarshall.bsky.social · 23/02/2026
💡 New @resolutionfoundation.org note on energy bills out over the weekend 💡 2026 energy bills are on track to be more than £200 lower, in real terms, than in 2024 – overwhelmingly driven by the Government’s discount kicking in this April. www.resolutionfoundation.org/publications...
resolutionfoundation.org
Power cut • Resolution Foundation
Next week, Ofgem is expected to announce that the Q2 2026 energy price cap will be nearly £120 below current levels. This reduction is overwhelmingly driven by the Government’s energy bill discount, w...
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Ruth Curtice @ruthcurtice.bsky.social · 03/02/2026
Today's report isn't usual territory, but does show our commitment to evidence. It would be easy to write a report saying protect consumers at all costs. Great analysis by @zackleather.resolutionfoundation.org persuaded us that wasn't the right answer. www.resolutionfoundation.org/publications...
resolutionfoundation.org
Green your eats • Resolution Foundation
This report provides an assessment of the UK’s progress toward net zero in the land use and agriculture sector – the only major area where emissions have barely fallen over the past 15 years. It exami...
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Zachary Leather @zackleather.resolutionfoundation.org · 03/02/2026
🧵 New research on decarbonising UK farms and what it means for living standards. The good news is decarbonisation should be manageable and won't cost the world - but it'll still be hard, as farming's in a fragile situation. Here's what we found 👇 www.resolutionfoundation.org/publications...
resolutionfoundation.org
Green your eats • Resolution Foundation
This report provides an assessment of the UK’s progress toward net zero in the land use and agriculture sector – the only major area where emissions have barely fallen over the past 15 years. It exami...
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Zachary Leather @zackleather.resolutionfoundation.org · 02/02/2026
Excited to be finally launching our new report on agricultural decarbonisation tomorrow morning - 9:30 online or in person for anyone who wants to join! 🐑🚜🐮 www.resolutionfoundation.org/events/net-z...
resolutionfoundation.org
Net zero farming • Resolution Foundation
The UK has made good progress towards net zero in recent decades. But the agriculture sector stands out as having made barely any progress. To meet our legally-binding climate targets, agriculture and...
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Resolution Foundation @resolutionfoundation.org · 22/01/2026
After half a decade of chopping and changing on home upgrade schemes, the Warm Homes Plan should see a more consistent Government approach into the late 2020s. As well as ensuring stable funding, the Plan will also see all programs funded centrally. More on the Warm Homes plan➡️ buff.ly/QJ2881G
Figure 1 shows, as well as ensuring stable funding, the Plan will also see all programs funded centrally, as the bill-funded Energy Company Obligation (ECO) scheme, which has dominated recent energy efficiency policy spend, was scrapped in the Budget last November.
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Jonny Marshall @jonnymarshall.bsky.social · 22/01/2026
Lots of good stuff in the Government's Warm Homes Plan. See 👇👇👇 for the @resolutionfoundation.org hot take
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Jonny Marshall @jonnymarshall.bsky.social · 14/01/2026
Good set of results on offshore wind auction contracts – the DESNZ team should be praised for balancing the need to deliver a lot of new capacity with the need to keep prices down www.theguardian.com/environment/...
theguardian.com
Offshore windfarm contracts to fuel 12m homes in Great Britain after record auction
Subsidies guaranteeing price for each unit of clean electricity generated given to 12 renewables projects
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Adam Bell @adambell.bsky.social · 26/11/2025
A DESNZ CLEAN SWEEP A package that saved at least £150 off the average household bill was the minimum this Budget needed to achieve to give Labour at least a fighting chance of getting to their £300 target, given the price rises next year. /1
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Jonny Marshall @jonnymarshall.bsky.social · 26/11/2025
energy bill discounts doing the heavy lifting on bringing down inflation next year
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Jonny Marshall @jonnymarshall.bsky.social · 26/11/2025
Big news on Fuel Duty - the 5p cut will be removed gradually from September. A good way to end this giveaway without pushing up inflation
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Jonny Marshall @jonnymarshall.bsky.social · 26/11/2025
So that's £125-ish off energy bills - ECO scrapped and 75% of renewables obligation costs moved into the tax system. Big enough to offset bill increases coming next year, and most (~70%) of the savings coming from electricity bills instead of gas. Overall pretty good.
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Adam Corlett @adamcorlett.bsky.social · 19/11/2025
It's *possible* the Budget could be very green: 🟢 Focus all price cuts on electricity, not gas 🟢 Don't cancel Fuel Duty rises 🟢 Cushion future EV VED rise with public charger VAT cut & other support 🟢 Expand emissions pricing to long-haul flights & international shipping 🟢 Help lower interest rates
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Resolution Foundation @resolutionfoundation.org · 19/11/2025
In 'Splitting the bill' we found that if the Government removed some policy costs from electricity bills, it could save the average family £160, while pushing down on inflation. Read here 👉 buff.ly/z69JDpL
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Resolution Foundation @resolutionfoundation.org · 06/11/2025
The Government is reportedly drawing up plans to overhaul car taxation in the upcoming Budget. This is welcome and long overdue – transport taxes have failed to keep up with the switch from Internal Combustion Engines (ICEs) to Electric Vehicles (EVs). 🧵 buff.ly/nGl374z
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Adam Corlett @adamcorlett.bsky.social · 06/11/2025
This sounds promising: grappling with a big long-term tax issue. Though the suggested scale would be similar to the £200 EV VED rise that happened this April. And if the VAT 'pavement tax' were abolished at the same time, that might offset most of this cost for drivers without home chargers.
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Ruth Curtice @ruthcurtice.bsky.social · 16/10/2025
Through successive governments a shadow tax and benefits system has emerged in energy bills worth £7bn. New report out today says government should fix this system, and reduce energy bills for households. www.resolutionfoundation.org/app/uploads/...
resolutionfoundation.org
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Jonny Marshall @jonnymarshall.bsky.social · 16/10/2025
💡💡💡 New @resfoundation.bsky.social note out today on cutting energy bills – and how paying for some costs on bills differently will see the poorest households more than £100 per year better off 💡💡💡 1/ www.resolutionfoundation.org/publications...
resolutionfoundation.org
Splitting the bill • Resolution Foundation
This note looks at the factors behind stubbornly high energy bills and how ministers could act to ease pressure on households. It considers how change can be enacted to work for vulnerable families an...
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Resolution Foundation @resolutionfoundation.org · 30/09/2025
The Government has allocated £13 billion to the Warm Homes Plan. But what should it do with the money? Priority should be given to the poorest households who spend twice as much of their family budgets on energy bills as the richest households. Read more👉 buff.ly/PGjbi38
The Plan aims to address the twin challenges of reducing energy bills while also driving decarbonisation of home heating. 

The Government is pledging £13 billion to make homes cleaner and cheaper to heat – but not enough to overhaul the entire housing stock. This means that some prioritisation is needed.

The ''who, how, and what,'' are all key considerations.Poorer households will get a greater living standards boost from energy efficiency improvements.

While no more likely to live in badly insulated homes, these households spend twice as much of their budgets on energy bills - 10 per cent for the poorest quintile compared to 5 per cent for the richest.

So capital spending should be focussed on them.Almost all low income households could be made eligible through a system based on incomes, three times more than through welfare passporting or based on area.

Grants should target measures with the biggest impact: loft insulation, filling cavity walls, solar panels. These would lock in permanent energy bill savings of 14 per cent for those in the poorest fifth of households (in homes with an EPC rating of D or lower).The Government has to balance spending on insulation and clean heating. 

Acting to reduce bills will mean less to spend on rolling out heat pumps.

But this doesn’t mean giving up on clean heat, far from it. 

Ministers should be bolder with regulations to accelerate the roll out of heat pumps.
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Jonny Marshall @jonnymarshall.bsky.social · 25/09/2025
Interesting energy consumption stats out today - electric cars and domestic heat pumps now account for more than 5% of total electricity use www.gov.uk/government/s...
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Simon Jeffrey @simonjeffrey.bsky.social · 24/09/2025
If govt wants lower bills, especially for lower income households, it needs to pay for it through tax rises right now. Fiddling around with standing charges is deck chair rearrangement - and people who end up with higher bills will make more noise than those who get a cut from this.
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Jonny Marshall @jonnymarshall.bsky.social · 24/09/2025
Lower standing charges aren’t the answer to high energy bills: a tariff with a 50% cut in standing charges would only see one in six families save more than £100 on energy bills – 43 per cent would see bills increase
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Jonny Marshall @jonnymarshall.bsky.social · 27/08/2025
Most of this change in energy bills being driven by an increase in standing charges, which are up for both gas and for electricity into Q4
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Resolution Foundation @resolutionfoundation.org · 20/08/2025
How should the Government prioritise its £13 billion Warm Homes Plan budget? Priority should be given to the poorest households who spend twice as much of family budgets on energy bills as the richest households. Read more: buff.ly/PGjbi38
The Plan aims to address the twin challenges of reducing energy bills while also driving decarbonisation of home heating. 

The Government is pledging £13 billion to make homes cleaner and cheaper to heat – but not enough to overhaul the entire housing stock. This means that some prioritisation is needed.

The ''who, how, and what,'' are all key considerations.Poorer households will get a greater living standards boost from energy efficiency improvements.

While no more likely to live in badly insulated homes, these households spend twice as much of their budgets on energy bills - 10 per cent for the poorest quintile compared to 5 per cent for the richest.

So capital spending should be focussed on them.Almost all low income households could be made eligible through a system based on incomes, three times more than through welfare passporting or based on area.

Grants should target measures with the biggest impact: loft insulation, filling cavity walls, solar panels. These would lock in permanent energy bill savings of 14 per cent for those in the poorest fifth of households (in homes with an EPC rating of D or lower).The Government has to balance spending on insulation and clean heating. 

Acting to reduce bills will mean less to spend on rolling out heat pumps.

But this doesn’t mean giving up on clean heat, far from it. 

Ministers should be bolder with regulations to accelerate the roll out of heat pumps.
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Zachary Leather @zackleather.resolutionfoundation.org · 11/08/2025
Great to see Guardian cover our research today - it's flats and smaller houses that are most at risk of overheating, so should be no surprise that vulnerable families will be more at risk. Important to think about cooling homes as well as warming them!
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Jonny Marshall @jonnymarshall.bsky.social · 07/08/2025
⚡⚡ New @resfoundation.bsky.social note out today looking at how the Government should prioritise its £13 billion Warm Homes Plan budget ⚡⚡ www.resolutionfoundation.org/publications...
resolutionfoundation.org
No country for cold homes • Resolution Foundation
The Government’s imminent Warm Homes Plan aims to overhaul England’s housing stock so homes are cheaper and cleaner to keep warm. This note sets out how it can best work to improve living standards fo...
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Zachary Leather @zackleather.resolutionfoundation.org · 24/07/2025
Good to see the flexibility roadmap out today. Flex is key to a cheaper energy system, so great that Gov is committed to this. Especially big savings coming for those with big techs like EVs and heat pumps. www.gov.uk/government/p...
gov.uk
Clean flexibility roadmap
A roadmap setting out the government’s vision for a clean, flexible, consumer-focused electricity system.
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Jonny Marshall @jonnymarshall.bsky.social · 22/07/2025
Shame to see rising block tariffs suggested. A bad idea for poorer families that use lots of energy, but also not great for incentivising people to consume more electricity in electric cars or heat pumps
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Alex Belsham-Harrris @alexbelsham-harris.bsky.social · 22/07/2025
The challenge of energy affordability is very real, but rising block tariffs aren’t the answer. People on low incomes with poorly insulated homes or who need more energy for health reasons could see rising bills, while those with multiple homes or can install solar panels avoid paying a fair share
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Adam Corlett @adamcorlett.bsky.social · 21/05/2025
@resfoundation.bsky.social colleagues noted last year that extending Winter Fuel Payments to pensioners on Housing Benefit would target low incomes at a cost of £100m (& a HB - Pension Credit merger is planned longer-term). Another £200m could extend WFPs to those on Attendance Allowance, DLA & PIP
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Jonny Marshall @jonnymarshall.bsky.social · 21/05/2025
Higher energy bills driving today's inflation figures, with changes in fuel costs behind nearly 90% of the year-on-year increase. Policies that pay for environmental and social schemes (among other things) up a bit too but nowhere near as much
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Jonny Marshall @jonnymarshall.bsky.social · 10/04/2025
🚨 🚨 🚨 New @resfoundation.bsky.social research out today on decarbonising home heating, looking at what shape policy should take so that poorer households can be more involved 🧵 www.resolutionfoundation.org/publications...
resolutionfoundation.org
Turning up the heat • Resolution Foundation
Decarbonising home heating is one of the knottiest parts of the net zero transition, with big implications on families’ finances and behaviour. This report examines progress so far and discusses what ...
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Zachary Leather @zackleather.resolutionfoundation.org · 09/04/2025
New @resfoundation.bsky.social research out this morning from @emilyfry.bsky.social, @camronaref.bsky.social and I which uses the first ever comprehensive analysis of public service use across the income distribution to show how we can make public services better for low-to-middle income families.
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