Dated, weather-based
Tomorrow's forecast
Tomorrow's value is a weather-based estimate for Monday, October 5, 2026: 43.9 kWh from the 10 kWp reference system, with a likely range of 36.4 kWh–45.7 kWh. It changes with the next weather forecast.
Germany · 10 kWp reference system
Mannheim solar forecast and PV yield
Forecast target: . Any “tomorrow” label on this page refers to this dated target.
- Tomorrow's forecast
- 43.9 kWh 10 kWp reference system
- Typical annual output
- 11,061 kWh 10 kWp reference system
- Typical specific yield
- 1,106 kWh/kWp Per year
Monday, October 5, 2026
About 43.9 kWh tomorrow
For a standard 10 kWp south-facing system in Mannheim, GridPassport estimates 43.9 kWh on Monday, October 5, 2026, with a likely range of 36.4-45.7 kWh. The strongest production window is expected at 13:00-17:00 local time.
Updated Oct 4, 2026, 11:01 PM GMT+2 · Automatically refreshed- Likely range
- 36.4-45.7 kWh
- Strongest window
- 13:00-17:00
- Confidence
- high
How to read and use the data
Mannheim 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
Mannheim's PVGIS specific yield is about 1,106 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)13.2 kWh10.9 kWh–13.7 kWhPVGIS typical year3,318 kWh/year
5 kWpTomorrow estimate (likely range)21.9 kWh18.2 kWh–22.9 kWhPVGIS typical year5,531 kWh/year
10 kWpTomorrow estimate (likely range)43.9 kWh36.4 kWh–45.7 kWhPVGIS typical year11,061 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 13:00-17:00 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 21.9 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 13:00-17:00. Never override frost protection, hygiene cycles or manufacturer limits.
Large loads
Avoid stacking appliances
A 3 kWp system scales to about 13.2 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 Mannheim?
Using the same south-facing, 35-degree and 14% loss assumptions, the 5 kWp estimate is 21.9 kWh for Monday, October 5, 2026, with a scaled likely range of 18.2 kWh–22.9 kWh. This is a linear reference-system estimate, not a site survey.
What does 1,106 kWh/kWp mean for Mannheim?
It means the PVGIS multi-year profile produces about 1,106 kWh in a typical year for each installed kWp under the reference assumptions. A 5 kWp system therefore scales to about 5,531 kWh in a typical year before site-specific adjustments.
Is the Mannheim 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 Mannheim?
Start with 13:00-17:00, 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.
Typical year
Solar production month by month in Mannheim
A standard 10 kWp system produces about 11,061 kWh in a typical year at this location. Monthly averages show seasonality; they are not a forecast for a specific year.
390Jan
609Feb
989Mar
1255Apr
1303May
1334Jun
1338Jul
1238Aug
1090Sep
766Oct
430Nov
319Dec
Values are kWh per month. Source: European Commission JRC PVGIS.
What makes Mannheim's solar profile different?The typical annual yield is about 1,106 kWh per installed kWp, ranking Mannheim #10 of 42 modelled locations in Germany. That is 5% above the median of the 42 Germany locations in this dataset. July is typically the strongest month and December the weakest; the stronger month produces about 4.2 times as much.
See the 12-month data
MonthMonthly outputDaily averageYear-to-year variation
MonthJanuaryMonthly output390 kWhDaily average12.6 kWh/dayYear-to-year variation±79 kWh
MonthFebruaryMonthly output609 kWhDaily average21.8 kWh/dayYear-to-year variation±148 kWh
MonthMarchMonthly output989 kWhDaily average31.9 kWh/dayYear-to-year variation±180 kWh
MonthAprilMonthly output1,255 kWhDaily average41.9 kWh/dayYear-to-year variation±190 kWh
MonthMayMonthly output1,303 kWhDaily average42.0 kWh/dayYear-to-year variation±176 kWh
MonthJuneMonthly output1,334 kWhDaily average44.5 kWh/dayYear-to-year variation±139 kWh
MonthJulyMonthly output1,338 kWhDaily average43.2 kWh/dayYear-to-year variation±127 kWh
MonthAugustMonthly output1,238 kWhDaily average39.9 kWh/dayYear-to-year variation±110 kWh
MonthSeptemberMonthly output1,090 kWhDaily average36.3 kWh/dayYear-to-year variation±120 kWh
MonthOctoberMonthly output766 kWhDaily average24.7 kWh/dayYear-to-year variation±110 kWh
MonthNovemberMonthly output430 kWhDaily average14.3 kWh/dayYear-to-year variation±78 kWh
MonthDecemberMonthly output319 kWhDaily average10.3 kWh/dayYear-to-year variation±81 kWh
Nearby solar forecasts
Compare Mannheim with nearby cities
Tomorrow, in one email
Get Mannheim'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.