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View of Waterford Marina, Cathedral, Reginald's Tower, piece of Waterford Crystal, Waterford Quay by night.

Ireland · 10 kWp reference system

Waterford solar forecast

Photo: Original photos by [1] , Ticketautomat , TR001 , Philip Halling (collage idea by ColmanHuge2, CC BY-SA 3.0. Cropped, resized and converted to WebP by GridPassport.

Wednesday, August 5, 2026

About 30.7 kWh tomorrow

For a standard 10 kWp south-facing system in Waterford, GridPassport estimates 30.7 kWh on Wednesday, August 5, 2026, with a likely range of 20.6-40.6 kWh. The strongest production window is expected at 12:00-16:00 local time.

Updated Aug 4, 2026, 07:53 PM GMT+1 · fresh snapshot
Likely range
20.6-40.6 kWh
Strongest window
12:00-16:00
Confidence
medium
Forecast my solar output

Typical year

Solar production month by month in Waterford

A standard 10 kWp system produces about 10,472 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 Waterford's solar profile different? The typical annual yield is about 1,047 kWh per installed kWp, ranking Waterford #1 of 5 modelled locations in Ireland. That is 7% above the median of the 5 Ireland 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 output385 kWh Daily average12.4 kWh/day Year-to-year variation±65 kWh
MonthFebruary Monthly output542 kWh Daily average19.4 kWh/day Year-to-year variation±75 kWh
MonthMarch Monthly output885 kWh Daily average28.6 kWh/day Year-to-year variation±148 kWh
MonthApril Monthly output1,171 kWh Daily average39.0 kWh/day Year-to-year variation±160 kWh
MonthMay Monthly output1,329 kWh Daily average42.9 kWh/day Year-to-year variation±115 kWh
MonthJune Monthly output1,311 kWh Daily average43.7 kWh/day Year-to-year variation±126 kWh
MonthJuly Monthly output1,269 kWh Daily average40.9 kWh/day Year-to-year variation±139 kWh
MonthAugust Monthly output1,173 kWh Daily average37.9 kWh/day Year-to-year variation±109 kWh
MonthSeptember Monthly output942 kWh Daily average31.4 kWh/day Year-to-year variation±93 kWh
MonthOctober Monthly output658 kWh Daily average21.2 kWh/day Year-to-year variation±89 kWh
MonthNovember Monthly output473 kWh Daily average15.8 kWh/day Year-to-year variation±66 kWh
MonthDecember Monthly output332 kWh Daily average10.7 kWh/day Year-to-year variation±52 kWh

Nearby solar forecasts

Compare Waterford with nearby cities

CorkIreland 29.7 kWh LimerickIreland 27.9 kWh DublinIreland 20.4 kWh

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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.

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