Roof and shading
Ask how usable roof area, orientation, pitch, access, roof condition and shading have been assessed.
Solar panels and battery storage
Solar panels: what should you check before quotes?
Solar can suit many UK homes, but the useful answer starts with the roof, shading, electricity use, battery fit, export rate and tariff assumptions.
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Quick answer: Before getting solar quotes, check roof condition, usable space, orientation, shading, daytime electricity use, export tariff and whether a battery has a clear role. Treat any savings estimate as an assumption to question, not a promise.
Before quotes
What to check first.
These checks help separate useful guidance from product pressure.
Usage pattern
Compare expected generation with when electricity is actually used in the home.
Battery logic
A battery should be sized around usage, tariff and export assumptions, not added by default.
Comparison table
Questions to separate before quotes.
| Decision area | Why it matters | Question to ask |
|---|---|---|
| Panels only | Lower complexity, but more electricity may be exported. | How much generated electricity is expected to be used in the home? |
| Solar plus battery | Can shift electricity use, but adds cost and design choices. | What battery size is being recommended and why? |
| Solar plus EV charging | Can work well if charging patterns and tariffs fit. | How will charging be scheduled around solar and cheaper-rate periods? |
| Future heat pump | Future electricity demand may affect system sizing logic. | Does the proposal consider likely future heating changes? |
Installer questions
Ask better questions before you compare prices.
Use these prompts to make the quote conversation more specific and less sales-led.
- What roof areas are included and excluded from the design?
- What assumptions are used for self-consumption and export?
- How does the recommendation change with and without a battery?
- What happens if usage patterns or tariffs change later?
Next-step route
Check the solar panel route status.
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Disclosure
SavingEnergy.com may earn affiliate or referral income if you choose to continue through an approved tracked partner route. SavingEnergy.com is not an installer, supplier, surveyor, finance adviser or quote-comparison company.
No. Suitability depends on roof space, orientation, shading, electricity use, tariff, export rate, budget and installation constraints.
No. A battery depends on usage pattern, tariff, budget and how much generated electricity would otherwise be exported.
A common mistake is comparing headline system size or savings estimates without checking the assumptions behind generation, usage, export and battery behaviour.