More than 40 charities and civil society organisations have written jointly to the Prime Minister, Chancellor and Secretary of State for Energy Security calling for urgent action to protect households from rising energy bills before this winter.
The open letter [1] warns that without further intervention “millions of households will continue to suffer.”
It comes as energy bills are forecast to rise by 18% in July and a further 4% in September. Polling for the Energy and Climate Intelligence Unit found that the cost of living was the top driver of voting intention overall and energy bills were the single biggest cost-of-living concern among voters in the recent elections.
The letter acknowledges steps already taken by the government, including the November Budget decision to move the cost of the Renewables Obligation from bills to general taxation, the additional £1.5 billion for the Warm Homes Plan, and the 21st April package accelerating the clean energy transition.
But the signatories warn these measures risk being “wiped out before households feel them” unless ambition is increased.
The letter sets out four specific actions: enhanced financial support for households this winter, including an improved Warm Home Discount and action on energy debt; completion of the break between electricity prices and volatile gas markets; expanded support for solar, heat pumps, insulation and electric vehicles, particularly for lower-income households; and a commitment to staying the course on clean power rather than new oil and gas extraction.
On the transition to moving away from fossil fuels to clean energy, the letter points to growing public appetite for change, citing heat pump orders more than doubling in March compared with February, solar installations up 80% and electric vehicle leases up 85%.
According to End Fuel Poverty Coalition research with Survation, majorities of voters across all main parties say they either already have technology to reduce their energy use and lower their bills, or that rising prices following the conflict in Iran have made them more likely to want it. Labour voters lead on 67%, followed by Lib Dems (65%), Greens (61%), Reform (58%) and Conservatives (55%). [2]
The signatories are also calling for a Warm Homes Guarantee [3] to ensure lower bills, provide independent advice, clear consumer rights and fast redress if installations go wrong, alongside protections for renters.
Despite a potential leadership challenge to the Prime Minister, the letter urges the Government to prioritise the forthcoming Energy Independence Bill after the King’s Speech, describing it as the vehicle to “make our energy cheaper, cleaner, fairer and more secure.”
Lord John Bird, a crossbench peer, signed the letter on behalf of the Big Issue and said:
“The British public punished the government at the ballot box last week for not going fast or far enough on cost-of-living pressures. Voters are fed up with being pummelled by rising household bills they simply can’t afford.
“People need to feel the change being promised in their everyday lives by the time winter rolls back in. Lower bills in warmer homes would be a good place to start.”
Simon Francis, Coordinator of the End Fuel Poverty Coalition who helped organise the letter, added:
“Voters are clearly worried by the impact of the latest energy price crisis, and are already turning in record numbers to technologies like solar power to free themselves from soaring oil and gas prices.
“The Government must now make sure that more households, regardless of their wealth, can make that switch to clean electricity too and feel the savings in their bills now.
“That means breaking the link between electricity and gas prices for good, and rapidly expanding support for solar panels, heat pumps, insulation and electric vehicles, especially for lower-income households who have the most to gain but the least ability to act alone.
“Ministers need to be on the side of bill payers, not billionaires and go much further and faster to get us off the fossil fuel rollercoaster for good.”
Jackie O’Sullivan, Executive Director of Strategy and Influence at learning disability charity Mencap, said:
“Rising energy bills hit people with a learning disability hard. Many have no choice but to use more energy – for specialist equipment, to heat their homes for longer, to simply stay safe and well. The Government has taken positive steps, but must act to tackle the crushing energy debt crisis, widen the Warm Home Discount, and deliver a social tariff that protects those with the highest unavoidable energy costs.”
Frazer Scott, CEO Energy Action Scotland, another signatory commented:
“Far too many people are trapped in a vicious cycle of debt and despair, unable to heat their homes and feed their families. Essential energy is out of reach in an enduring crisis. Break the cycle, reduce costs and increase help for those that need it most. People over profit.”
Jan Shortt, General Secretary, National Pensioners Convention, said:
“It is totally wrong that customers are always expected to pay the ever increasing price of energy. Older people, particularly those with complex health conditions, need warmth and comfort even in warmer weather. Whilst the government has taken some steps the message at the ballot box was not enough to help households stay out of debt.”
ENDS
[1] The full letter can be read as a pdf: https://www.endfuelpoverty.org.uk/wp-content/uploads/260512-PM-Kings-Speech-Letter.pdf
[2] Survation were commissioned by the End Fuel Poverty Coalition to interview 2,047 people from 2-7 April 2026. Data were weighted to the profile of the UK. Data was weighted by respondent’s sex, age, region, household income, highest qualification, and past vote (GE24, EU16).
[3] A separate letter [pdf] to the Minister for Energy Consumers on 11 May asked the Government to introduce a Warm Homes Guarantee. At its core, this must ensure that every household receiving publicly funded energy efficiency upgrades sees a tangible reduction in their energy bills, alongside improved comfort and living standards.
WARM Homes Guarantee
W: Warmth & wellbeing outcomes.
Homes must be demonstrably warmer, healthier and safer to live in, with outcomes measured in real-world conditions, not just installations signed off on paper.
A: Advice you can trust.
Every household receives independent, high-quality advice before and after work is done, delivered in a format that works for them. This includes support for the digitally excluded, help navigating choices, benefits and tariffs, and practical hand-holding, not just signposting to installer lists.
R: Rights, redress and protection.
Clear accountability, strong consumer protections and fast routes to remediation when things go wrong, including compensation and repairs. For renters, this also means protection from rent hikes or eviction linked to upgrades.
M: Measured and fair energy costs.
A clear, enforceable commitment that upgrades will deliver fair outcomes on energy costs (either lower bills or improved warmth and comfort for the same spend) backed by monitoring, transparency and redress where expectations are not met.