Coastal vs Inland Solar
Find the right system size for your roof
Panel count depends on your electricity use, roof space and direction — not on a rule of thumb. Get a recommended size and what it should cost.
Size My SystemFree calculator. No contact details required to see your result.
Find the right system size for your roof
Panel count depends on your electricity use, roof space and direction — not on a rule of thumb. Get a recommended size and what it should cost.
Size My SystemDoes living by the coast affect solar panels?
Coastal vs inland solar performance — PVGIS comparison for 5 UK pairs: Brighton (coast) vs Guildford (inland): 1,050 vs 1,020 kWh/kWp (+3%). Plymouth (coast) vs Exeter (inland): 1,010 vs 1,050 kWh/kWp (-4% — Exeter higher altitude). Southampton (coast) vs Winchester (inland): 1,060 vs 1,040 (+2%). Scarborough (coast) vs York (inland): 880 vs 930 (-5% — coastal fog). Swansea (coast) vs Cardiff (inland): 970 vs 980 (-1%). AVERAGE: coastal performs 0-3% better on sunshine hours. HOWEVER: salt spray requires slightly more frequent cleaning (£50-£100/yr extra). Marine environment: ensure IP67 rated panels (all modern panels qualify). Wind loading: coastal installations need enhanced fixings (included in MCS installation standards). NET RESULT: negligible performance difference. Coastal homes should install without concern. Sources: PVGIS (re.jrc.ec.europa.eu), Met Office sunshine hours data.
Frequently Asked Questions
Related: Home Heating Systems
Solar panels are most powerful when combined with an efficient heating system. Heat pumps use solar-generated electricity to heat your home at 300-400% efficiency — making them the ideal partner for solar.
Heat pump installation typically takes 2-3 days and is best planned alongside solar.
From our sister site Home Heat Pump Guide
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Find the right system size for your roof
Panel count depends on your electricity use, roof space and direction — not on a rule of thumb. Get a recommended size and what it should cost.
Size My SystemFree calculator. No contact details required to see your result.