How much will solar panels produce in Drogheda?

A 4 kWp system facing south at 35° tilt in Drogheda produces about 4,020 kWh a year. In a weak year that is 3,351 kWh, in a good one 4,688 kWh — 1,005 kWh per kWp.

That’s about 96% of a typical home’s yearly use (4,200 kWh).

Calculate for my roof

Based on 2014–2023 satellite weather data

Production by month

0200400600800JanJanuary: 4 kWp 139 kWh, range 109–170FebFebruary: 4 kWp 214 kWh, range 165–264MarMarch: 4 kWp 341 kWh, range 264–417AprApril: 4 kWp 455 kWh, range 361–550MayMay: 4 kWp 537 kWh, range 438–636JunJune: 4 kWp 507 kWh, range 405–610JulJuly: 4 kWp 463 kWh, range 383–542AugAugust: 4 kWp 437 kWh, range 352–521SepSeptember: 4 kWp 366 kWh, range 299–433OctOctober: 4 kWp 258 kWh, range 210–306NovNovember: 4 kWp 158 kWh, range 121–196DecDecember: 4 kWp 112 kWh, range 84–139

kWh per month

A typical day in May

The sunniest month in Drogheda. Output peaks around 12:00 solar time, at about 2.0 kWh in the best hour.

0:006:0012:0018:0023:00 2.0 0

Month by month

Month Weak year, kWh Typical year, kWh Good year, kWh
January 109 139 170
February 165 214 264
March 264 341 417
April 361 455 550
May 438 537 636
June 405 507 610
July 383 463 542
August 352 437 521
September 299 366 433
October 210 258 306
November 121 158 196
December 84 112 139
Year 3,351 4,020 4,688

The months don’t add up exactly to the yearly figure, because each one is the typical value across many years.

Common questions

How much do solar panels produce in winter in Drogheda?

From November to February the system produces about 623 kWh, which is 16% of the year. The weakest month (December) gives roughly 112 kWh.

Is an east-west roof worth it in Drogheda?

An east-west system typically produces 10–25% less per kWp than one facing south, but spreads production more evenly through the day. The exact difference depends on tilt and shading.

Compare an east-west roof for Drogheda

Ground mount or roof in Drogheda?

A ground mount can be tilted and aimed freely, which can add some yield, but it costs more and needs space. Compare both for your own plot.

Check a ground-mounted system in Drogheda

Your roof is not an average roof

Set your own tilt, direction, shading and inverter limit and get a range for your address.

Calculate for my roof

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Climate data: Photovoltaic Geographical Information System (PVGIS) — European Commission, Joint Research Centre