Selling a House with Solar Panels

Solar panels stay with the house when you sell — they are fixed to the roof and legally form part of the property. That simple fact has a cascade of consequences for sellers, buyers, and their solicitors. Get the paperwork right and your solar installation becomes a genuine selling point; get it wrong and it can delay exchange by weeks, or give a cautious buyer cold feet. This guide walks through everything you need to know, whether you are preparing to list or considering an offer on a solar-equipped home.

Do solar panels add value when selling?

The evidence is encouraging. UK research published in 2024, based on analysis of over 1.5 million property transactions, found that homes with solar panels sold for between 4% and 7.1% more than comparable properties without them. On an average UK house price of around £285,000, that implies a premium of roughly £11,000–£20,000. A separate Rightmove study of 300,000 properties found that moving from an EPC band D to band C — a common outcome after a solar installation — added around 3% to sale price on average. See our full guide on whether solar panels add value to your home for a detailed breakdown of the research.

The uplift is not automatic. It depends on system size, age, ownership type, and how well documented the installation is. A buyer who cannot verify the panels are correctly certified, or who discovers the panels are leased under a non-compliant agreement, may negotiate the premium back off the price — or walk away.

Key documents sellers must gather

Start gathering paperwork before you list, not after you have accepted an offer. Delays in the documentation stage are the most common reason solar-related conveyancing runs over schedule.

MCS installation certificate. Issued at completion by your MCS-accredited installer, this certificate proves the system was installed to the Microgeneration Certification Scheme's quality standards. Without it, the buyer cannot register for the Smart Export Guarantee (SEG), and some mortgage lenders will not lend on an uncertified system. If you have lost it, contact your original installer; if the installer has ceased trading, MCS maintains a certificate database at mcscertified.com where you can search by postcode.
G98 or G99 notification confirmation. Your installer notified your Distribution Network Operator (DNO) under Engineering Recommendation G98 (for systems under 3.68 kW inverter capacity) or G99 (for larger systems). This confirms the system is grid-connected legally. Provide the buyer's solicitor with a copy of the notification acknowledgement. See our G98 Solar Notification Guide for more background.
Panel and inverter warranties. Panels typically carry a 25-year performance guarantee; inverters usually 5–12 years. Gather the original warranty documents and any correspondence with manufacturers. Remaining warranty life matters to buyers.
Feed-in Tariff or SEG contract details. If your system is registered on either scheme, you will need to handle the transfer or closure separately (see below).
Any lease or power purchase agreement (PPA). If the panels are not owned outright, this document is the most critical piece of paper in the transaction — see the section on leased panels below.

What happens to the Feed-in Tariff when you sell?

The Feed-in Tariff (FIT) closed to new applicants in March 2019, but around 900,000 UK installations remain registered and continue to receive payments — some at historic rates as high as 43p per unit generated for early 2010 installations. The FIT does not transfer automatically on property sale.

Ofgem's guidance for FIT generators sets out the process: the seller must notify their FIT licensee (the energy supplier making payments) of the change of ownership, provide a final meter reading, and complete a change-of-generator form. The new owner then contacts the same FIT licensee to register as the named generator. Ofgem also requires the change to be recorded on the Renewable Electricity Register — the seller emails renewable@ofgem.gov.uk to request a transfer form. This process must be completed before completion day to avoid a gap in payments or an erroneous payment to the former owner.

Buyers should be aware that FIT payments are taxable income once they exceed the trading allowance threshold, and they must confirm bank details with the FIT licensee to receive payments after transfer.

What happens to the Smart Export Guarantee?

The Smart Export Guarantee (SEG) does not transfer — it is a personal contract between the homeowner and an energy supplier. When the property changes hands, the seller closes their SEG account and the buyer applies fresh with their chosen SEG licensee. Ofgem's SEG guidance makes clear that the new owner of an eligible system is entitled to apply, provided the system holds a valid MCS certificate and a smart meter is in place. The buyer should shop around: SEG export rates in 2026 range from around 4p to over 20p per unit depending on supplier and tariff — see our guide to Smart Export Guarantee rates for current comparisons.

The seller should notify their SEG supplier in advance of completion, providing a forwarding address and the final export meter reading.

Owned vs leased panels — the critical difference

Owned outright is the clean scenario. The panels form part of the property and transfer to the buyer with the title, like any other fixture. Documentation requirements are as listed above. Most buyers, solicitors, and mortgage lenders are comfortable with owned panels.

Leased panels (including rent-a-roof and PPAs) are more complicated. In the early 2010s, many homeowners accepted “free” solar installations from companies who retained ownership of the panels and collected the FIT income. If your property has a lease or PPA, the lease is registered as a charge against the title at HM Land Registry, and the lease must be assigned to the buyer — this is separate from the property conveyance and requires the involvement of the solar company.

Contact the solar company at the point of marketing, not at exchange. The assignment process typically takes two to four weeks. Many early leases predate the UK Finance mortgage lending standards (set out in clause 5.20 of the UK Finance Mortgage Lenders' Handbook), meaning a deed of variation may be required before a buyer's lender will accept the property as security. Some sellers find it simpler to buy out the panels entirely — most leases contain an early buyout clause, though the price is set by the company. Check whether your home has a registered charge at HM Land Registry.

EPC rating and energy performance

Solar panels reliably improve a property's EPC score, often by one full band — commonly from D to C or from C to B. Under the updated RDSAP 10 methodology (in use from June 2025 across England, Scotland, and Wales), energy assessors can also formally credit home battery storage for the first time. If your last EPC predates the installation, commission a fresh assessment before listing: an improved band makes the property eligible for green mortgage products, which can widen the buyer pool and support your asking price. Find out more about how solar affects your EPC in our guide to whether solar panels are worth it in the UK.

Buyer due diligence checklist

If you are buying a home with solar panels, ask your solicitor to verify the following before exchange:

Are the panels owned outright, or subject to a lease/PPA? Check the title register at HM Land Registry for registered charges.
Is there a valid MCS installation certificate? Without it, you cannot register for SEG.
Are there G98 or G99 notification documents confirming legal grid connection?
What are the remaining panel and inverter warranty terms?
Is there an active FIT registration? If so, is the transfer process in hand?
What is the current EPC rating, and does it reflect the solar installation?
Has your mortgage lender confirmed it is comfortable lending on the property, particularly if a lease is present?

Instructing your solicitor early — ideally before making a formal offer — avoids last-minute delays. A standard solar conveyancing enquiry takes one to two weeks if all documents are in order; a leased-panel scenario with a deed of variation required can add another four to six weeks.

Summary for sellers

A well-documented owned solar system is a genuine asset at sale. Gather your MCS certificate, G98/G99 notification, warranties, and any FIT or SEG contracts before listing. Notify your FIT licensee and SEG supplier promptly, and brief your conveyancer on the installation from day one. If the panels are leased, contact the solar company immediately and budget extra time for the assignment process. Done correctly, your solar installation can support a higher asking price and attract buyers who value lower running costs — a growing segment of the UK market as energy costs remain elevated.