Solar panels in Rotterdam
At Rotterdam's coordinates, PVGIS gives about 1,000 kWh a year for every kWp of panels, which is 6,002 kWh for a 6 kWp system. Rotterdam pays EUR 100, 75 or 50 per panel for solar panels that meet sustainability requirements (for example production CO2 under 500 kg per kWp and PFAS-free), up to EUR 49,900 per applicant. Two verified local rules and their sources are listed below. Of the 3 cities we model in the Netherlands, Rotterdam has the highest yield. Amsterdam gets 992 kWh per kWp. Using 70% of the power at home instead of 30% moves payback from 12.4 to 6.7 years. May is the strongest month at about 762 kWh and December the weakest at 167 kWh, a 4.6x swing.
Month by month in Rotterdam
Modelled output of a 6 kWp system at 35° facing south (towards the equator), from PVGIS climate data (PVGIS-SARAH3, 2005 to 2023).
| Month | kWh | Share of year |
|---|---|---|
| January | 209 | 3.5% |
| February | 307 | 5.1% |
| March | 531 | 8.9% |
| April | 712 | 11.9% |
| May | 763 | 12.7% |
| June | 742 | 12.4% |
| July | 728 | 12.1% |
| August | 667 | 11.1% |
| September | 557 | 9.3% |
| October | 388 | 6.5% |
| November | 231 | 3.8% |
| December | 167 | 2.8% |
- Best month: May (763 kWh). Weakest: December (167 kWh), a 4.6x difference.
- May, June, July produce 37.2% of the year; January, November, December produce 10.1%.
- Year-to-year variation: about 267 kWh (4.4%, one standard deviation).
- Sunlight reaching the panels: 1,282 kWh per m² a year.
Local rules and support in Rotterdam
Rules set by the city or its region, on top of the national scheme. Each one was checked against the official source on the date shown.
- Gemeente Rotterdam
Subsidy for sustainable solar panels
Rotterdam pays EUR 100, 75 or 50 per panel for solar panels that meet sustainability requirements (for example production CO2 under 500 kg per kWp and PFAS-free), up to EUR 49,900 per applicant. Applications are open until 31 December 2026 on a first-come basis while funds last.
Source: Gemeente Rotterdam, Subsidie duurzame zonnepanelen aanvragen (checked 2026-09-25)
- Gemeente Rotterdam
Energietransitielening for homeowners
Rotterdam homeowners can apply until 31 December 2027 for a low-interest energietransitielening of EUR 2,500 to 65,000, usable for measures including solar panels. The loan requires at least two measures that make the home both more sustainable and better maintained.
Source: Gemeente Rotterdam, Energietransitielening voor particuliere woningeigenaren aanvragen (checked 2026-09-25)
How Rotterdam compares
Rotterdam ranks 1 of 3 for yield among the cities we model in the Netherlands, and 34 of 41 across every country on Solar Figures. Within one country the prices are the same, so a payback gap between these cities comes from sunshine alone.
| City | kWh per kWp / yr | Payback (EUR) |
|---|---|---|
| Rotterdam | 1,000 | 12.4 yrs |
| Amsterdam | 992 | 12.5 yrs |
| Utrecht | 991 | 12.5 yrs |
| National reference point (country page) | 993 | 12.5 yrs |
Closest yield abroad: Cologne (1,003 kWh per kWp), Antwerp (1,005 kWh per kWp), Brussels (1,009 kWh per kWp).
What moves the payback in Rotterdam
Power you use yourself is worth the retail price (€0.27 per kWh); power you export earns €0.07. So the share you use at home, by running appliances in daylight or adding a battery, changes the payback. The system cost stays the same in every row (a battery would add to it).
| Used at home | Year-1 savings | Payback |
|---|---|---|
| 20% | €654 | 15.1 yrs |
| 30% (our default) | €772 | 12.4 yrs |
| 50% | €1,010 | 8.3 yrs |
| 70% | €1,248 | 6.7 yrs |
- Net system cost after incentives: €8,100 for 6 kWp.
- Incentive modelled: No capital grant; 0% VAT embedded in price. Net metering (salderingsregeling) ENDS 1 Jan 2027..
- 25-year net savings at our default: €18,580.
Best panel angle in Rotterdam
At latitude 51.92°N, PVGIS finds the fixed tilt and direction that maximise yearly output. Our figures use a common 35° roof; the table shows what the optimum adds.
| Setup | Tilt | Facing | kWh per kWp / yr |
|---|---|---|---|
| Standard roof (used on this page) | 35° | south | 1,000 |
| PVGIS optimum | 39° | south (182°) | 1,002 |
The optimum adds 0.2% a year over the standard roof in Rotterdam. Most of a roof's value comes from its direction: a roof facing away from the equator loses far more than a few degrees of tilt.
See the full the Netherlands picture on our Netherlands solar page, or the national incentives in our Netherlands solar guide.
Sources and method
Figures computed 2026-09-25 for a 6 kWp system, 35° tilt, 14% system losses, terrain shading on. An estimate, not a quote: your installer's quote will be exact.
- PVGIS 5.3 PVcalc (PVGIS-SARAH3), European Commission JRC (checked 2026-09-25)
- the Netherlands tariff and incentive inputs (see DATA_SOURCES.md) (checked 2026-06-21)
- the Netherlands tariff and incentive inputs (see DATA_SOURCES.md) (checked 2026-06-21)
- Gemeente Rotterdam: Subsidie duurzame zonnepanelen aanvragen (checked 2026-09-25)
- Gemeente Rotterdam: Energietransitielening voor particuliere woningeigenaren aanvragen (checked 2026-09-25)
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