Solar Panel ROI Calculator – Hungary 2026
Enter your solar system's parameters or use the simple wizard to find out the annual savings, payback period and electricity production in Hungary.
Basic
| Setup 1 | |
|---|---|
| Payback period | 14.02 years |
| Annual savings | HUF 174,300 |
| Lifetime savings | HUF 5,654,525 |
| Annual production | 8400 kWh |
| CO₂ saved | 1.84 t/year |
| Self-consumption | 35 % |
This calculation is indicative and is based on the entered inputs and average values for Hungary (specific yield, a simplified average electricity price rather than the tiered rezsicsökkentés system, a representative feed-in price for new installations rather than an exact transitional model). Actual production and savings depend on the specific roof, orientation, shading and installer. It does not replace a quote from a solar installer.
How solar panel ROI is calculated
Annual production is calculated as the installed capacity (kWp) multiplied by the specific yield (kWh produced per year per 1 kWp) for the given location in Hungary. Part of the electricity produced is used directly by the household (self-consumption), while the rest is exported to the grid at the feed-in price.
Annual savings are the sum of two parts: money saved on electricity that would otherwise have been bought (self-consumption × electricity price), and income from surplus exported to the grid (remaining production × feed-in price). Hungary has a regulated two-tier household electricity price (a subsidised rate up to a consumption limit, a higher market rate above it) – the calculator approximates this with a simplified average price.
The payback period is the year in which cumulative savings exceed the net investment (system and any battery price, minus the subsidy). The calculator also accounts for the annual rise in electricity prices and the gradual degradation of panel output.
The calculator lets you compare 2–3 setups side by side, for example a system without a battery and one with a battery, and immediately see the difference in payback period and total savings.
Frequently asked questions
How is the annual solar production calculated?
Multiply the system size in kWp by the location's specific yield in kWh/kWp/year. In Hungary, the typical figure is around 1200 kWh/kWp/year, higher than in Slovakia or Czechia thanks to stronger solar irradiation.
What does self-consumption mean and why does it matter?
It's the share of produced electricity you use directly instead of exporting it to the grid. Higher self-consumption means a faster payback, because purchased electricity is more expensive than the feed-in price for surplus.
Is battery storage worth it?
A battery increases self-consumption and therefore savings, but also increases the investment. Compare the setup with and without a battery in the calculator – the higher the electricity price and daytime usage, the sooner a battery pays off.
Why is the feed-in price so low in Hungary?
Since January 2024, Hungary has required gross billing (bruttó elszámolás) for new installations instead of the older annual net-metering scheme. Under gross billing, the grid operator pays only a few forints per kWh for exported surplus, far below the price of purchased electricity. Installations registered before 7 September 2023 could keep the more favourable net-metering terms.
Why does production decrease over time?
Solar panels gradually lose a small amount of output over time (degradation, typically around 0.5% per year). The calculator accounts for this in the production and savings estimate over the system's full lifetime.
How much CO₂ does a home solar system save?
It depends on annual production and the emissions factor of the Hungarian electricity grid, which is lower than Poland's thanks to the large share of the Paks nuclear power plant. The calculator converts the electricity produced into tonnes of CO₂ saved per year based on the current energy mix.