A practical guide to the funding routes open to private landlords, registered social landlords and local authorities looking to install solar panels.
Energy costs have risen sharply, and Minimum Energy Efficiency Standards (MEES) place real pressure on private landlords to improve EPC ratings. A rental property that falls below an EPC E rating cannot legally be let in England and Wales, and proposed tightening to EPC C would push that bar significantly higher. Solar panels can contribute meaningfully to a property's rating.
For registered social landlords (RSLs) and housing associations, the same pressure applies at scale. A portfolio of low-rated properties represents both a compliance risk and an ongoing burden on residents' fuel bills. Funding routes exist to help spread the upfront cost, though eligibility conditions vary and schemes change over time. Understanding which route applies to your situation is the starting point.
ECO4 is the UK government's main obligation-based energy efficiency scheme, funded by energy suppliers and delivered through approved contractors. It is primarily aimed at low-income or vulnerable households, and private landlords can access it only when their tenant meets the qualifying criteria, typically receipt of certain means-tested benefits or referral through a local authority flex route.
Under ECO4, the landlord does not receive the funding directly. The energy supplier obligation pays the installer, and the landlord must consent to the works and often make a financial contribution toward measures above a minimum threshold. Solar panels are an eligible measure under ECO4, but they are usually installed as part of a package alongside insulation or a primary heating upgrade rather than as a standalone installation.
If your tenant qualifies, contact your local council's energy efficiency team or an ECO4-registered installer to check eligibility. The application is made through the supply chain, not through a central government portal.
Beyond ECO4, community grants and funding from local authorities, combined mayoral authorities and devolved governments represent a meaningful source of support for social landlords and community energy projects. Many local authorities administer Warm Homes-related grants that sit alongside the national ECO4 scheme, and some have ring-fenced capital for renewable energy on social housing stock.
Registered social landlords should check whether their local authority or combined authority runs a community grants and funding programme specifically for housing decarbonisation. Some programmes allow RSLs to apply directly; others require a joint application with a community energy group or a local authority lead. Business funding grants from the UK Shared Prosperity Fund and similar devolved pots have also been used by housing associations to part-fund solar across flat roofs and larger blocks.
Grants and funding for business purposes, including housing associations operating as charities or community interest companies, may also be available through charitable foundations and energy trusts. Eligibility is scheme-specific, so checking the relevant authority's published criteria before applying is essential.
For most domestic rental properties, solar panel installation on a pitched roof is permitted development under the General Permitted Development Order (GPDO), meaning no planning application is needed. However, permitted development rights do not apply to listed buildings, and properties in conservation areas face additional restrictions on panels visible from a public highway.
Flat-roof and ground-mount systems, which are more common on larger social housing blocks, often fall outside permitted development and require a full planning application. The GPDO was amended in 2024 to extend some permitted development rights, but local planning authorities retain discretion in sensitive areas. Always confirm the position with the local planning authority before works begin, particularly on estates with article 4 directions in place.
For commercial or larger social housing blocks, the rules differ again. The page covering planning permission for commercial solar panels has a detailed breakdown of when consent is needed and what the application process involves.
A south-facing roof at a pitch of 30 to 40 degrees will generate the most energy, but east- or west-facing roofs still produce worthwhile output. Shading from trees, chimneys or neighbouring buildings reduces yield and should be assessed before any proposal is accepted. Roof age matters too: if a roof is approaching the end of its serviceable life, replacing it before panels go on avoids costly removal and reinstallation later.
For landlords with multiple properties, a roof-by-roof survey is the only reliable way to size systems correctly. The portion of generated electricity used on-site directly (rather than exported) is the biggest driver of payback speed. In tenanted properties this is complicated: the tenant pays the electricity bill and benefits from cheaper power, while the landlord bears the capital cost. Some landlords address this through a private wire arrangement or an energy-sharing clause in the tenancy agreement, though legal advice is advisable before doing so.
According to the Energy Saving Trust, panels typically carry warranties of 20 to 25 years, while inverters run for roughly 5 to 15 years before replacement is needed. Factor both into any long-term portfolio plan.
The typical payback period for a domestic solar installation is 9 to 12 years on an ideal roof, and longer on east-facing or shaded roofs, according to the Energy Saving Trust using July 2026 fuel prices. For landlords, the payback calculation is more complex because the direct bill savings accrue to the tenant rather than the landlord unless a cost-sharing arrangement is in place.
VAT on residential solar installation is currently zero-rated to 31 March 2027. Full details on VAT, typical system costs and the Smart Export Guarantee are covered on our Solar Panel Grants and Funding hub.
Under the Smart Export Guarantee, electricity suppliers with at least 150,000 domestic customers must offer an export tariff for surplus power generated by an MCS-certified installation. Rates are supplier-set and vary, so comparing tariffs pays. For landlords, who benefits from export payments depends on whose name the installation is registered in and how the tenancy agreement is structured.
Illustrative cumulative savings against upfront cost
| 2027 | -6,960 £ |
|---|---|
| 2029 | -5,880 £ |
| 2030 | -5,340 £ |
| 2032 | -4,260 £ |
| 2033 | -3,720 £ |
| 2035 | -2,640 £ |
| 2036 | -2,100 £ |
| 2038 | -1,020 £ |
Assumed: system cost £7,500 (mid-range estimate), annual benefit £540 (mid-range of ideal and east-facing roofs), over 12 years. This is an illustration only; actual figures will vary by property. Illustrative example, calculated from the assumptions in the text, not figures from a source.
Illustrative example
Solar panels require little routine maintenance, but periodic checks on the inverter, mounting and cabling are worthwhile, particularly between tenancies. Panels typically carry product warranties of 20 to 25 years, and inverters typically need replacement after 5 to 15 years. Both timelines should be written into any planned maintenance schedule for the property.
Insurance is a practical consideration for landlords. Standard buildings insurance policies do not always cover solar installations as standard, so confirm cover with your insurer before installation. Some MCS-certified installers offer workmanship warranties that sit alongside the manufacturer guarantee; ask for the terms in writing.
For social landlords managing large portfolios, a planned replacement programme for inverters and a clear process for tenant communication about system access will reduce friction over the life of the installation. Keeping MCS certification documentation on file also matters, as it is required to register for the Smart Export Guarantee.
The trade-offs, in short.
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Answers to the most common questions.
Yes, but only if the tenant meets ECO4 eligibility criteria, usually through receipt of qualifying benefits or a local authority referral. The landlord consents to the works and may need to contribute toward costs. Solar is typically installed as part of a broader package rather than as a standalone measure.
Local authorities, combined mayoral authorities and devolved governments run various community grants and funding programmes for housing decarbonisation. The UK Shared Prosperity Fund has also been used for social housing solar. Eligibility varies by scheme and area, so checking with your local authority's energy or housing team is the first step.
The Warm Homes Plan is the successor to ECO4 and is expected to cover both owner-occupied and social housing, with a social housing-specific element. The scheme's full scope and eligibility rules are still being confirmed; registered social landlords should monitor DESNZ publications and their trade body for updates as details are released.
Under the Smart Export Guarantee, export payments go to whoever holds the export contract, which is typically the person in whose name the installation is registered. In a tenanted property, landlords and tenants should agree in writing at the outset who registers the installation and how any export income is shared.
Most domestic rental properties qualify for permitted development, meaning no planning application is needed. Exceptions include listed buildings, properties in conservation areas where panels would be visible from a public highway, and flat-roof or ground-mount systems. Always confirm with the local planning authority before work begins.
Minimum Energy Efficiency Standards require rental properties to meet a minimum EPC rating. Solar panels can raise a property's EPC score, which helps landlords meet current and prospective requirements. The contribution depends on system size, roof orientation and whether the installation is assessed as part of a full EPC survey.
