How does our solar calculator work?
Our solar calculator Serbia uses PVGIS data from the European Commission to estimate how much energy solar panels can generate at your specific location. PVGIS accounts for local solar irradiance, average temperatures and cloud cover — which makes the estimate far more accurate than multiplying kilowatt-peak by a single fixed factor.
Location matters because Vojvodina has strong solar energy per square metre, but also local specifics — fog in low-lying parts of Bačka, overcast winters, and real differences between Temerin, Novi Sad and Subotica (PVGIS Vojvodina data captures all of that). When you enter your city, the calculator pulls the actual PVGIS annual yield for that coordinate, rather than an averaged value for the whole country.
Net metering Serbia rules allow you to "bank" surplus summer production into the grid and draw it back in winter without transport charges. That is the main reason solar is economical in Vojvodina. The current rules apply to anyone who obtains prosumer Serbia status by 2026-12-31 — after that the terms change, which is why 2026 is such a decisive year for making the decision.
Prosumer Serbia status has a limit: household systems are currently capped at 10.8 kW. If the calculator proposes a larger system (rare, only for very high consumption), you will see a warning and we can discuss alternatives such as splitting across two meters or switching to a commercial prosumer setup. The 2026 subsidy covers part of the investment for individuals who obtain this prosumer status.
The "with subsidy" toggle automatically applies the current subsidy percentage (up to the statutory maximum) to the gross price and shows the net price you would actually pay. Without the subsidy, payback takes longer but the system is still worthwhile given the rising cost of electricity — our 25-year projection accounts for annual price increases.
The calculator also takes into account roof orientation (south is optimal, east/west produce less), tilt (30° is close to optimal at our latitude), roof cover type (tile, metal or flat roof change the installation cost), and optionally a battery to increase self-consumption. The result is a realistic 25-year estimate — including annual panel degradation and electricity price growth.