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🇭🇷 Solar Calculator Croatia

Enter your monthly electricity bill and city — get solar system size, HEP prosumer net metering income, EU Recovery Fund grant estimate, self-consumption savings, and payback period in Euro (€).

Your electricity details
€EUR
Solar system results — Croatia
5 kWp system — 1022 kWh/kWp/yr
Monthly kWh usage750 kWh/mo
Annual solar production5.110 kWh/yr
Self-consumption savings (€0.16/kWh)€327/yr
Export income (market price)€153/yr
Total annual benefit€480/yr
System cost range€6.000 – €8.500
EU Recovery Fund grant (est.)-€1.000
Net cost after grant€6.250
Payback period (after grant)13.0 years
25-year net savings€4.759
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How to Use This Calculator

Enter your monthly bill and city

Enter your average monthly electricity bill in Euro (€) from HEP (Hrvatska elektroprivreda) — Croatia's dominant electricity supplier — or another licensed supplier. Croatia adopted the Euro on 1 January 2023, replacing the Kuna. The calculator uses Croatia's average household retail rate of €0.16/kWh. Select your city: Croatia has dramatic solar variation between its continental north and Adriatic coast. Dubrovnik (4.6 PSH) and Split (4.5 PSH) receive more solar radiation than many Mediterranean cities, while Zagreb and Osijek at 3.5 PSH are more comparable to Central Europe.

Choose your system size

Select system size in kWp. Residential systems in Croatia typically range from 5–10kWp. Coastal villas often install 8–15kWp systems to maximize the exceptional Adriatic solar resource. Commercial and tourism properties commonly install 15–20kWp. Installation costs range from €1,200–1,700/kWp for a turnkey system including panels, inverter, mounting, and grid connection — competitive with the EU average.

Prosumer net metering toggle

Croatia's prosumer scheme (adopted under EU Directive 2019/944, implemented via the Energy Act — Zakon o energiji) allows residential and small commercial customers to export surplus solar electricity and receive credits at the full HEP retail rate (€0.16/kWh) against future bills. Without prosumer status, surplus is sold at the lower market price (~€0.05/kWh). Registration requires a prosumer agreement with HEP ODS (distribution) and notification to HERA (Hrvatska energetska regulatorna agencija). EU Recovery Fund (NPOO) grants of up to €2,000 for residential solar are included in the calculation as an estimate — verify current open calls at npoo.mfin.hr.

The Formula

Monthly kWh = Monthly Bill ÷ €0.16/kWh (HEP avg retail rate) Annual production = kWp × PSH × 365 × 0.80 efficiency Self-consumption = Annual kWh × 40% (without battery) Self-consumption savings = Self-consumed kWh × €0.16/kWh retail Prosumer export income = Exported kWh × €0.16/kWh (retail credit) Market export income = Exported kWh × €0.05/kWh (market fallback) EU grant = min(kWp × €200, €2,000) residential estimate System cost = kWp × €1,200–1,700/kWp installed Payback = Net cost after grant ÷ Annual benefit (typically 6–8yr coastal)

Croatia's solar framework is governed by the Energy Act (Zakon o energiji), Electricity Market Act (Zakon o tržištu električne energije), and HERA regulations. The prosumer model was formally introduced in 2021. Croatia's National Recovery and Resilience Plan (NPOO) allocates funds for household energy efficiency and solar installations — check npoo.mfin.hr for current grant calls. Additional support may be available through county (županija) energy offices.

Example

Marija — Split coastal villa, 10kWp with prosumer

Marija pays €250/month for her coastal villa near Split. She installs a 10kWp system and registers as a prosumer with HEP ODS.

Monthly bill€250
City / PSHSplit, 4.5 PSH
System size10 kWp
ProsumerEnabled

Result

Annual production~13,140 kWh/yr
Production per kWp~1,314 kWh/kWp/yr
Self-consumption savings~€841/yr
Prosumer export income~€1,261/yr
Total annual benefit~€2,102/yr
System cost range€12,000–17,000
EU grant (est.)-€2,000
Net cost after grant~€12,500
Payback~5.9 years
25-year net savings~€38,050

Split's exceptional 4.5 PSH gives this system approximately 1,314 kWh/kWp/yr — among the best in Central and Eastern Europe. Combined with prosumer net metering and an EU grant, the payback falls well below 7 years. The Dalmatian coast's solar resource makes coastal Croatia one of Europe's most attractive residential solar markets.

FAQ

Absolutely — especially on the Dalmatian coast. Split (4.5 PSH), Zadar and Šibenik (4.4 PSH), and Dubrovnik (4.6 PSH) rank among Europe's sunniest locations for solar. Even Zagreb (3.5 PSH) achieves 6–8 year payback. Croatia's HEP retail rate of ~€0.16/kWh combined with prosumer net metering and EU Recovery Fund grants (NPOO) makes solar financially compelling across the country. Coastal properties with high summer electricity demand (air conditioning, pools) benefit most.
Croatia's prosumer scheme allows households and small businesses with solar installations to export surplus electricity to the HEP grid and receive credits at the full retail rate against future bills (net metering). This significantly improves economics compared to selling at market price. To activate: submit a prosumer agreement application to HEP ODS (distribution operator) with your installation documentation, then register with HERA (Croatian Energy Regulatory Agency). Processing typically takes 4–8 weeks. The scheme applies to installations up to the connection capacity agreed with HEP ODS.
Yes — Croatia's National Recovery and Resilience Plan (NPOO — Nacionalni plan oporavka i otpornosti) includes funding for household solar installations and energy efficiency. Grant amounts and eligibility criteria vary by call — past calls have covered 40–70% of eligible costs up to set caps. Check npoo.mfin.hr (Ministry of Finance) and mgo.gov.hr (Ministry of Physical Planning) for currently open calls. FZOEU (Fund for Environmental Protection and Energy Efficiency) also operates solar subsidy programs. Apply before installation — retroactive grants are generally not available.
Croatia spans two distinct climatic zones. The Adriatic coast and islands have a Mediterranean climate with hot, dry, sunny summers — Dubrovnik averages over 2,700 sunshine hours/year, more than most of Greece. The continental interior (Zagreb, Osijek, Slavonia) has a Central European climate with more cloud cover and cold winters. This creates a 30%+ difference in solar production between Dubrovnik (4.6 PSH) and Zagreb (3.5 PSH). If you own property on the Dalmatian coast, solar is among the best investments in all of Europe.
Yes — Croatia adopted the Euro (€) on 1 January 2023, replacing the Croatian Kuna (HRK) at the fixed rate of 7.53450 HRK = 1 EUR. All HEP electricity bills, solar installation contracts, and feed-in credits are now denominated in Euros. This removes currency risk for EU-financed solar projects and makes Croatian solar economics directly comparable to other Eurozone countries. If you have old quotes in HRK, divide by 7.5345 to convert to EUR.

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