Read the PV production forecast
See how much electricity the planned PV system is expected to generate over the year — and what drives that number — before you look at how the energy is used or what it's worth.
The Production PV view in the Simulation tab shows the system's expected generation: the annual yield and how it's spread across the year. It's the generation side of the simulation — the Energy flows view then splits that generation between the household, battery, and grid, and Profitability turns it into euros.
Before you start
- The variant needs a planned PV system with a yield calculation (2D or 3D planning). A Quick planning variant runs no yield calculation, so there's nothing to forecast — switch it to 2D or 3D planning to get a forecast.
- Production reflects the planned layout — module count, orientation, and tilt (2D or 3D), plus shading (3D only) — all flow into the yield. If the number looks wrong, check the layout first.
What drives the forecast
Reonic models generation from:
- Local weather — based on the project address, so the forecast reflects the conditions at the site.
- Orientation and tilt of each roof surface, taken from the plan.
- Shading captured in the 3D layout.
- Module specifications — rated power, temperature behaviour, and degradation from the component data.
Things to know
- Set a realistic degradation value. Enter each module's annual degradation on the component so the long-term yield, and the payback that depends on it, reflects how panels lose a small amount of output each year. Real panels lose roughly half a percent per year.
- Shading only counts if it's in the layout. A nearby tree or chimney affects yield only if it's modelled in 3D. If you expect a lower summer yield from shading and the forecast doesn't show it, add the shading object to the layout.
- It's a forecast, not a guarantee — weather years vary. The figure is a weather-normalised expectation.
Related
- Plan PV modules and Plan the building — set the layout, orientation, and shading this forecast reflects.
- Plan strings — how modules are wired into the inverter (also affects production).
- Energy flows — how this generation is split between household, battery, and grid.
- Profitability — what the generated energy is worth.
Need help?
- Step-by-step questions about this flow → contact Reonic support.
- Feature requests or something missing → send a note to Reonic support.
- Something not working → include a screenshot and the page where it happened in your support email.
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