The UK Government has unveiled a landmark policy that will shape the future of British housing and energy — all new homes will be built with solar panels installed by default. This change, part of the newly published Warm Homes Plan, aims to tackle spiralling energy costs, reduce carbon emissions and accelerate the transition to a clean, home-grown energy system.
What Is the Warm Homes Plan?
On 21 January 2026, the Department for Energy Security and Net Zero published the Warm Homes Plan — a comprehensive strategy to cut energy bills and retrofit the nation’s homes with green technologies. The plan sets out how the government will transform the UK’s ageing housing stock to be more energy efficient, comfortable and cheaper to run.
At its heart is a £15 billion public investment, aimed at helping up to 5 million homes access low-carbon solutions such as solar panels, heat pumps, insulation and battery storage. It is also intended to lift up to 1 million households out of fuel poverty by 2030.
Solar Panels: Standard on New Builds
One of the most talked-about elements of the plan is that solar panels will become standard on new homes. The government confirmed that under forthcoming building regulations, new-build properties will be required to have rooftop solar installed as part of the Future Homes Standard. This means developers should fit solar panels as a matter of course, helping future homeowners save money on their energy bills while making homes cleaner and greener.
Under this approach:
- Solar photovoltaic (PV) systems will be installed on the roofs of most new homes.
- These panels will generate clean electricity, reducing the household’s reliance on fossil fuels and lowering bills.
- The move is aligned with targets to cut carbon emissions and improve energy security.
Why This Matters: Costs and Benefits
Installing solar as a standard part of new homes could bring significant benefits:
- Lower energy bills — solar generation can reduce electricity costs for households over the long term.
- Reduced carbon footprint — renewables in homes help slash reliance on gas and grid electricity.
- Energy security — locally generated power makes the UK less dependent on volatile global markets.
Research suggests that mandating renewables on new-build homes, including solar panels, could save the average household more than £1,300 a year — and potentially more when paired with heat pumps and battery storage.
Support for Existing Homes Too
The Warm Homes Plan is not just about new homes. For homeowners already living in older properties, the government plans to provide:
- Grants and fully-funded upgrades for low-income households, which can include solar panel installation.
- Zero and low-interest loans for a wider range of households to install solar, heat pumps and other energy-saving measures.
- Support tailored through local authorities under the Warm Homes: Local Grant scheme.
This multi-pronged support is designed to unlock access to clean technologies for millions of households who might otherwise face high upfront costs.
What Ofgem Says
Ofgem has welcomed the Warm Homes Plan and underscored its importance. In its official response, Ofgem said that improving energy efficiency and creating warmer, more efficient homes is “in all our interests,” and that it will continue to play a key role in supporting delivery of the plan’s aims.
While the Ofgem response did not dwell specifically on the solar-on-new-homes element, it positioned the regulator as a partner in broader efforts to reduce emissions and improve energy outcomes for consumers.
What Happens Next
The introduction of solar panels as a default requirement on new homes represents a major shift in UK housing policy. The Future Homes Standard is expected to be updated in legislation soon, with these requirements rolled out in the coming years.
For existing homes, local authorities will begin delivering upgraded energy-saving measures to eligible households from 2026 onwards.
By making solar panels compulsory on all new homes and offering substantial support for retrofitting existing housing stock, the UK Government’s Warm Homes Plan aims to lower energy bills, cut carbon emissions, improve energy security and drive a green transition in housing on an unprecedented scale. Both policymakers and industry regulators like Ofgem see this as a vital step toward a more sustainable and affordable energy future for households across the country.
I’m actually hopeful we’ll have a positive year for our energy bills. We’re going to see a decent reduction from April onward, with the government removing a £150 charge on our bills, plus an increase in solar panels across the UK will result in more lower demand for foreign fuels, hopefully resulting in a reduction in costs for all of us.
We are expecting Ofgem’s next price cap announcement at the end of this month, keep an eye on my updates!
Thanks everyone,
Richard Winstone
The Regulator Guy.
