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Netherlands · 10 kWp reference system

Groningen solar forecast

Photo: JAHensens, CC BY 4.0. Cropped, resized and converted to WebP by GridPassport.

Wednesday, August 5, 2026

About 45.5 kWh tomorrow

For a standard 10 kWp south-facing system in Groningen, GridPassport estimates 45.5 kWh on Wednesday, August 5, 2026, with a likely range of 34.6-53.6 kWh. The strongest production window is expected at 10:00-14:00 local time.

Updated Aug 4, 2026, 08:53 PM GMT+2 · fresh snapshot
Likely range
34.6-53.6 kWh
Strongest window
10:00-14:00
Confidence
medium
Forecast my solar output

Typical year

Solar production month by month in Groningen

A standard 10 kWp system produces about 9,944 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 Groningen's solar profile different? The typical annual yield is about 994 kWh per installed kWp, ranking Groningen #10 of 10 modelled locations in Netherlands. That is 3% below the median of the 10 Netherlands locations in this dataset. May is typically the strongest month and December the weakest; the stronger month produces about 5.0 times as much.

See the 12-month data
MonthMonthly outputDaily averageYear-to-year variation
MonthJanuary Monthly output302 kWh Daily average9.8 kWh/day Year-to-year variation±52 kWh
MonthFebruary Monthly output483 kWh Daily average17.2 kWh/day Year-to-year variation±116 kWh
MonthMarch Monthly output889 kWh Daily average28.7 kWh/day Year-to-year variation±164 kWh
MonthApril Monthly output1,206 kWh Daily average40.2 kWh/day Year-to-year variation±160 kWh
MonthMay Monthly output1,279 kWh Daily average41.3 kWh/day Year-to-year variation±156 kWh
MonthJune Monthly output1,248 kWh Daily average41.6 kWh/day Year-to-year variation±138 kWh
MonthJuly Monthly output1,234 kWh Daily average39.8 kWh/day Year-to-year variation±161 kWh
MonthAugust Monthly output1,133 kWh Daily average36.5 kWh/day Year-to-year variation±121 kWh
MonthSeptember Monthly output926 kWh Daily average30.9 kWh/day Year-to-year variation±105 kWh
MonthOctober Monthly output632 kWh Daily average20.4 kWh/day Year-to-year variation±114 kWh
MonthNovember Monthly output358 kWh Daily average11.9 kWh/day Year-to-year variation±65 kWh
MonthDecember Monthly output255 kWh Daily average8.2 kWh/day Year-to-year variation±58 kWh

Nearby solar forecasts

Compare Groningen 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.