The Warm Homes Plan and the government’s green agenda

GK’s Hugo Tuckett examines the government’s publication of its Warm Homes Plan and what it means for the government’s green agenda

January 2026 saw the publication of the government’s long-awaited Warm Homes Plan. The plan, which is backed by £15 billion of funding and was originally due for publication in 2025, represents the sum of the measures that the government believes will deliver on its commitment to lower household energy bills by £300 over the course of this parliament (2024-29). It is also one of the government’s most entrenched policies, dating back to Labour’s time in opposition when Shadow Chancellor of the Exchequer Rachel Reeves announced in 2021 that a future Labour government would deliver billions of pounds worth of new funding to support upgrades to the UK’s green infrastructure.

The Warm Homes Plan seeks to deliver a significant expansion of solar panels and heat pumps, marking a departure from previous efforts to improve the insulation of homes. Despite its original billing to improve households’ energy efficiency, the final publication of the plan sets out the energy secretary Ed Miliband’s ambition to deliver a ‘rooftop revolution’ and includes a range of measures designed to support a much greater uptake of solar panels. This has led to some concern amongst charity and industry groups who have warned that shifting to clean heat and electricity generation (including heat pumps and solar panels) before dealing with the scale of draughty homes is only going to lead to an increase in bills in the short term. It does though demonstrate the government’s shift in approach from seeking to reduce household energy consumption to increasing energy generation from renewable sources.

Ministers are eager for households to adopt a range of green measures to substantially lower bills and, in some cases, deliver ‘zero-bill’ households. The government’s thesis is that investing in the roll out of new technologies now, including heat pumps, will drive down costs further in the medium-to-long term. It also becomes much cheaper and more efficient to use a heat pump when combined with battery storage systems and solar panels. Critics will say that the government should be thinking much more radically about how it plans to rebalance the levies on energy, so that it can bring down the cost of electricity for all if it really wants to see people make the shift from gas to electricity. Aside from the government reiterating its decision to remove £150 worth of levies from energy bills through the abolition of the Energy Company Obligation (ECO), this plan does not tackle that more intractable problem.

The funding included in the plan is predominantly aimed at low-income households, but there is some financial support available to all homes. The plan will administer £4.4 billion in grants to low income households and social landlords. This will include fully funded upgrade schemes, including solar and heat pumps, depending on the assessment of the building. It will also establish a £5.3 billion Warm Homes Fund which will be available to all households. This includes £2 billion in low-and-no-interest consumer loans and £2.7 billion for innovative finance products in the home upgrade system. The government aims to upgrade five million homes by 2030 and lift one million homes out of fuel poverty through the plan, which will be overseen by a new government body, the Warm Homes Agency.

The publication of the plan is a significant moment for the government and for energy secretary Ed Miliband. Despite previous climbdowns on the amount of funding that would be made available to support the government’s green agenda, Miliband has deftly navigated both HM Treasury and the Cabinet to retain a sizeable portion of funding to deliver on his ambitions in the sector when other departments are experiencing real-terms cuts. As the 2029 general election approaches, there will be real pressure on the Department for Energy Security and Net Zero to deliver on the ambitions of the plan, which sits in an area of public policy where the government will be hoping to draw a clear dividing line with Reform UK. The government has spent a lot of its first 18 months in power talking up its efforts to boost the UK’s green credentials and lower household energy bills – now it’s all about delivery.