Green mortgage rewards and borrowing options for solar panels and battery storage
If you already have a mortgage, your lender may offer additional borrowing, cashback or preferential products for improving your home’s energy efficiency.
These offers vary considerably. Some could help fund a new solar and battery installation, while others only reward homes that already have a high Energy Performance Certificate rating.
Jelvis can provide a detailed solar and battery proposal for you to submit to your lender. Your lender will decide whether you and your proposed improvements qualify.
Information checked: 18 August 2026. Offers can change or be withdrawn, so always confirm the latest terms directly with your lender before proceeding.
Nationwide
Borrow between £5,000 and £20,000 at 0% interest
Existing Nationwide mortgage customers may be able to use its Green Additional Borrowing product for eligible energy-efficient home improvements.
Borrow between £5,000 and £20,000
0% fixed interest for the first two or five years
Solar panels and other qualifying energy improvements may be covered
Maximum total borrowing of up to 90% of the property’s value
No product fee
All the additional borrowing must be used for qualifying improvements
The work cannot already have been completed
After the two or five-year deal ends, any remaining balance may move to Nationwide’s variable Standard Mortgage Rate unless another eligible product is arranged.
Barclays
Receive up to £1,000 through the Greener Home Reward
Eligible Barclays residential mortgage customers may be able to claim a one-off cash reward after completing qualifying energy-efficiency improvements.
Up to £1,000 for qualifying improvements
Solar electricity panels and solar battery storage are included
The work must meet Barclays’ current eligibility requirements
Evidence such as a paid invoice and relevant certification may be required
Mortgage payments must normally be made by Direct Debit
Check your eligibility before arranging any work, as the reward and qualifying improvements can change.
Lloyds Bank
Eco Home Reward for qualifying mortgage customers
Eligible Club Lloyds customers with a mortgage may be able to receive cashback for qualifying energy-efficient improvements, including solar panels.
Cashback is available for certain qualifying improvements
Solar panels are included within the scheme
You must normally hold a qualifying Lloyds mortgage and Club Lloyds current account
Residential owner-occupiers may be eligible
Buy-to-let properties are excluded from the improvement reward
The work and claim must be completed within Lloyds’ specified timescale
A final paid invoice and supporting information may be required
The maximum £2,000 reward applies to certain improvements, such as heat pumps. Check the amount available for your proposed solar or battery installation directly with Lloyds before proceeding.
What to do next?
If you are considering using one of these schemes, Jelvis can provide:
A detailed solar panel and battery storage proposal
Recommended system size and equipment
Estimated annual electricity generation
Estimated energy-bill savings
Installation cost breakdown
MCS-compliant design and installation
Relevant certification following completion