Is your location good for solar?

How the solar suitability check works

This tool uses real climate data from NASA's POWER Project — the same satellite-derived data used by researchers and energy planners worldwide. When you drop a pin, we pull a 30-year climatology average for that exact latitude and longitude.

What the numbers mean

• Avg daily sun (peak sun hours): How many hours of full-strength sunlight that location receives per day on average. This is the single most important number for solar — more sun hours means more electricity from the same panels.
• Cloud cover: The average percentage of sky covered by cloud. Some cloud is fine — panels still generate on cloudy days — but consistently heavy cloud reduces output.
• Rainfall: Average daily precipitation. Rain itself isn't bad for solar (it actually cleans panels), but it's a proxy for how often skies are overcast.

How we score suitability

The suitability score blends sun hours (weighted most heavily), cloud cover, and rainfall into a single 0–100 figure. As a rough guide: above 75 is excellent, 60–75 is good, 45–60 is fair, and below 45 means solar is possible but less rewarding. Even "fair" locations often make solar worthwhile once you factor in local electricity prices — which is what our full calculator works out.

This is a starting point, not a final answer

Climate is only one factor. Your actual solar output also depends on your roof direction, shading from trees or buildings, panel quality, and your local electricity tariff and export rates. Once you've checked your location here, run the full Sunlytic calculator to get a personalised system size, cost, and payback estimate for your home.