Assessment and installation
How to choose the best solar panels for your home
The best solar panels for your home are the ones that fit a sensible roof layout and offer a suitable balance of generation, installed cost and support. Compare complete designs rather than choosing solely by the highest wattage on a panel label.
By VERA · Reviewed
Start with the layout, not a brand ranking
Ask each installer to show the proposed panels on your roof and name the exact models. Check which roof faces are included and where windows, chimneys and boundaries limit placement. A product shortlist becomes more useful when you can see how each choice would be installed.
Compare the whole system’s rated capacity
For illustration, ten 450-watt panels total 4.5 kWp, while nine 480-watt panels total 4.32 kWp. The second panel has a higher individual rating but the example system is smaller. Neither number predicts annual electricity on its own. These are generic arithmetic examples, not tested products or a layout for a real property.
Ask what the proposed system would generate
Request the annual generation estimate for each layout and ask which roof, shading and equipment assumptions changed. A higher estimate should have an explanation. Keep the same household use and electricity prices when comparing financial benefits so the panel choice is not obscured by different assumptions.
Make the warranty comparison specific
Ask for the actual warranty documents, who handles a claim and which costs are included. Record product cover, any stated output commitment and the installer’s workmanship cover separately. Do not assume that the longest number in a brochure covers every part of the system or the cost of accessing the roof.
Compare value rather than a panel-only price
Use the full installed price and note any differences in inverter, mounting, access and electrical work. A more expensive panel may be part of a cheaper complete job, or the reverse. If an installer recommends an upgrade, ask what measurable difference it makes to your design.
Take a design into the quote conversation
VERA helps you see your home’s solar potential before choosing an installer. You can talk to our team about recommendations or send your design to an installer of your choice to price. RECC recommends comparing at least three quotes and checking the written scope and performance estimate before committing.
Sources and further reading
- Renewable Energy Consumer Code: choosing an installation
- VERA: assessment assumptions and limitations
This guide gives general information. Your assessment is an estimate; installation design, suitability and price need confirmation for your property.
Keep exploring
- How many solar panels do I need, and will they fit?
- How much do solar panels cost in the UK?
- How accurate are online solar calculators?