Dated, weather-based
Tomorrow's forecast
Tomorrow's value is a weather-based estimate for Friday, October 23, 2026: 8.2 kWh from the 10 kWp reference system, with a likely range of 5.4 kWh–10.5 kWh. It changes with the next weather forecast.
Germany · 10 kWp reference system
Erlangen solar forecast and PV yield
Forecast target: . Any “tomorrow” label on this page refers to this dated target.
- Tomorrow's forecast
- 8.2 kWh 10 kWp reference system
- Typical annual output
- 10,673 kWh 10 kWp reference system
- Typical specific yield
- 1,067 kWh/kWp Per year
Friday, October 23, 2026
About 8.2 kWh tomorrow
For a standard 10 kWp south-facing system in Erlangen, GridPassport estimates 8.2 kWh on Friday, October 23, 2026, with a likely range of 5.4-10.5 kWh. The strongest production window is expected at 14:00-18:00 local time.
Updated Oct 22, 2026, 04:01 AM GMT+2 · Automatically refreshed- Likely range
- 5.4-10.5 kWh
- Strongest window
- 14:00-18:00
- Confidence
- medium
Typical year
Solar production month by month in Erlangen
A standard 10 kWp system produces about 10,673 kWh in a typical year at this location. Monthly averages show seasonality; they are not a forecast for a specific year.
370Jan
586Feb
931Mar
1198Apr
1263May
1277Jun
1307Jul
1203Aug
1046Sep
754Oct
421Nov
316Dec
Values are kWh per month. Source: European Commission JRC PVGIS.
What makes Erlangen's solar profile different?The typical annual yield is about 1,067 kWh per installed kWp, ranking Erlangen #25 of 77 modelled locations in Germany. That is 3% above the median of the 77 Germany locations in this dataset. July is typically the strongest month and December the weakest; the stronger month produces about 4.1 times as much.
See the 12-month data
MonthMonthly outputDaily averageYear-to-year variation
MonthJanuaryMonthly output370 kWhDaily average11.9 kWh/dayYear-to-year variation±94 kWh
MonthFebruaryMonthly output586 kWhDaily average20.9 kWh/dayYear-to-year variation±135 kWh
MonthMarchMonthly output931 kWhDaily average30.0 kWh/dayYear-to-year variation±182 kWh
MonthAprilMonthly output1,198 kWhDaily average39.9 kWh/dayYear-to-year variation±190 kWh
MonthMayMonthly output1,263 kWhDaily average40.8 kWh/dayYear-to-year variation±170 kWh
MonthJuneMonthly output1,277 kWhDaily average42.6 kWh/dayYear-to-year variation±139 kWh
MonthJulyMonthly output1,307 kWhDaily average42.1 kWh/dayYear-to-year variation±138 kWh
MonthAugustMonthly output1,203 kWhDaily average38.8 kWh/dayYear-to-year variation±124 kWh
MonthSeptemberMonthly output1,046 kWhDaily average34.9 kWh/dayYear-to-year variation±142 kWh
MonthOctoberMonthly output754 kWhDaily average24.3 kWh/dayYear-to-year variation±126 kWh
MonthNovemberMonthly output421 kWhDaily average14.0 kWh/dayYear-to-year variation±90 kWh
MonthDecemberMonthly output316 kWhDaily average10.2 kWh/dayYear-to-year variation±58 kWh
How to read and use the data
Erlangen solar forecast: daily weather versus long-term PV yield
The daily and annual figures answer different questions. Use the dated forecast to plan tomorrow, and the PVGIS specific yield to compare locations or estimate a typical year.
Multi-year climate baseline
PVGIS specific yield
Erlangen's PVGIS specific yield is about 1,067 kWh/kWp per year. It is a multi-year climate benchmark, not a prediction for tomorrow or for this calendar year. In the PVGIS profile, July is typically the strongest month and December the weakest.
3, 5 and 10 kWp reference systems
Scale the same assumptions to your system size
SystemTomorrow estimate (likely range)PVGIS typical year
3 kWpTomorrow estimate (likely range)2.5 kWh1.6 kWh–3.1 kWhPVGIS typical year3,202 kWh/year
5 kWpTomorrow estimate (likely range)4.1 kWh2.7 kWh–5.3 kWhPVGIS typical year5,337 kWh/year
10 kWpTomorrow estimate (likely range)8.2 kWh5.4 kWh–10.5 kWhPVGIS typical year10,673 kWh/year
Linear reference scaling only: south-facing, 35° tilt and 14% system losses. It does not resize inverter clipping, shade or local roof constraints.
From forecast to a household plan
Battery, EV, heat pump and flexible loads
Treat the forecast as a gross solar-energy budget before household base load and conversion losses. The numbers support scheduling; they do not guarantee surplus.
Battery
Keep room for the solar window
Use 14:00-18:00 as the first candidate charging window. Battery state of charge, reserve settings and inverter limits still decide how much can be stored.
EV
Compare the charge with the 5 kWp budget
The scaled 5 kWp estimate is 4.1 kWh before household use. Compare the remainder after base load with the planned EV charge and stagger charging if needed.
Heat pump
Shift only flexible thermal demand
If comfort controls allow it, place discretionary hot-water heating or pre-heating inside 14:00-18:00. Never override frost protection, hygiene cycles or manufacturer limits.
Large loads
Avoid stacking appliances
A 3 kWp system scales to about 2.5 kWh for the day before household use. Run flexible loads sequentially during the strongest hours rather than assuming all forecast energy is simultaneous power.
Local questions
Solar forecast FAQ
How much could a 5 kWp solar system produce tomorrow in Erlangen?
Using the same south-facing, 35-degree and 14% loss assumptions, the 5 kWp estimate is 4.1 kWh for Friday, October 23, 2026, with a scaled likely range of 2.7 kWh–5.3 kWh. This is a linear reference-system estimate, not a site survey.
What does 1,067 kWh/kWp mean for Erlangen?
It means the PVGIS multi-year profile produces about 1,067 kWh in a typical year for each installed kWp under the reference assumptions. A 5 kWp system therefore scales to about 5,337 kWh in a typical year before site-specific adjustments.
Is the Erlangen forecast the same as the PVGIS annual estimate?
No. Tomorrow's forecast uses dated weather and an uncertainty band for one day. The PVGIS figure is a multi-year climate-based specific yield used for typical monthly and annual comparisons.
When should a battery, EV or heat pump use solar in Erlangen?
Start with 14:00-18:00, then check household base load, battery headroom, EV energy required and heat-pump safety or comfort constraints. The forecast estimates daily energy, not guaranteed instantaneous surplus.
Nearby solar forecasts
Compare Erlangen with nearby cities
Tomorrow, in one email
Get Erlangen's solar forecast by email
Tomorrow's expected production, likely range and strongest hours. One useful email each day.
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.
CSV and JSON snapshots are published under CC BY 4.0 with source attribution.