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United Kingdom · 10 kWp reference system

Sheffield solar forecast

Photo: Nbfreeh, CC BY-SA 4.0. Cropped, resized and converted to WebP by GridPassport.

Wednesday, August 5, 2026

About 20.1 kWh tomorrow

For a standard 10 kWp south-facing system in Sheffield, GridPassport estimates 20.1 kWh on Wednesday, August 5, 2026, with a likely range of 13.2-26.1 kWh. The strongest production window is expected at 08:00-12:00 local time.

Updated Aug 4, 2026, 07:53 PM GMT+1 · fresh snapshot
Likely range
13.2-26.1 kWh
Strongest window
08:00-12:00
Confidence
medium
Forecast my solar output

Typical year

Solar production month by month in Sheffield

A standard 10 kWp system produces about 9,443 kWh in a typical year at this location. Monthly averages show seasonality; they are not a forecast for a specific year.

Values are kWh per month. Source: European Commission JRC PVGIS.

What makes Sheffield's solar profile different? The typical annual yield is about 944 kWh per installed kWp, ranking Sheffield #8 of 12 modelled locations in United Kingdom. That is close to the median of the 12 United Kingdom locations in this dataset. May is typically the strongest month and December the weakest; the stronger month produces about 4.0 times as much.

See the 12-month data
MonthMonthly outputDaily averageYear-to-year variation
MonthJanuary Monthly output343 kWh Daily average11.1 kWh/day Year-to-year variation±67 kWh
MonthFebruary Monthly output492 kWh Daily average17.6 kWh/day Year-to-year variation±96 kWh
MonthMarch Monthly output831 kWh Daily average26.8 kWh/day Year-to-year variation±151 kWh
MonthApril Monthly output1,072 kWh Daily average35.7 kWh/day Year-to-year variation±153 kWh
MonthMay Monthly output1,181 kWh Daily average38.1 kWh/day Year-to-year variation±129 kWh
MonthJune Monthly output1,127 kWh Daily average37.6 kWh/day Year-to-year variation±130 kWh
MonthJuly Monthly output1,157 kWh Daily average37.3 kWh/day Year-to-year variation±136 kWh
MonthAugust Monthly output1,073 kWh Daily average34.6 kWh/day Year-to-year variation±87 kWh
MonthSeptember Monthly output874 kWh Daily average29.1 kWh/day Year-to-year variation±55 kWh
MonthOctober Monthly output601 kWh Daily average19.4 kWh/day Year-to-year variation±89 kWh
MonthNovember Monthly output396 kWh Daily average13.2 kWh/day Year-to-year variation±75 kWh
MonthDecember Monthly output296 kWh Daily average9.6 kWh/day Year-to-year variation±46 kWh

Nearby solar forecasts

Compare Sheffield with nearby cities

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Method and data

Every city uses a 10 kWp system facing south at 35 degrees with 14% system losses. Tomorrow's figure combines hourly weather with GridPassport's PV production and uncertainty model. The monthly profile uses the European Commission JRC PVGIS multi-year climate series. Roof direction, shade, snow, dirt, inverter clipping and local weather can change real output.