Solar Incentives in Poland

Poland transitioned from net-metering (1:1 swap) to net-billing on April 1, 2022. Under net billing, exported solar electricity is purchased at the wholesale RCEm rate (Rynkowa Cena Energii — Miesięczna), set monthly by Polskie Sieci Elektroenergetyczne (PSE) and published by the regulator URE. Self-consumed energy is credited at full retail value, so net billing strongly favors installations sized to maximise self-consumption rather than export. Storage and tariff-shifting (e.g., heat-pump scheduling, EV charging) significantly improve economics. Customers connected before April 1, 2022 retained net-metering for 15 years from grid connection. The settlement system is operated by the Distribution System Operator (OSD) — Tauron, Energa, PGE, Enea, or innogy depending on region — and accounts settle in 12-month rolling windows.

The thermomodernisation relief (Article 26h of the PIT Act) is a personal income tax deduction available to owners or co-owners of single-family residential buildings. Eligible expenses include solar PV systems, battery storage, heat pumps, ground-source systems, biomass boilers, insulation, and energy management equipment. The PLN 53,000 cap applies per taxpayer and across all thermomodernisation projects undertaken on a single property, accumulated over three consecutive tax years from the year of the first qualifying expenditure. Spouses each have their own PLN 53,000 ceiling, doubling the available relief for jointly-owned homes. The deduction is claimed on the annual PIT return (PIT-37, PIT-36, or PIT-28) using the PIT/O appendix. Receipts and invoices must be retained for at least 5 years. The relief stacks with Mój Prąd grants: the grant amount is subtracted from the deductible expense before applying the relief to avoid double-claiming.

Poland applies a reduced 8% VAT rate to solar installations on residential buildings ≤ 300 m² (for single-family) or ≤ 150 m² per dwelling (for multi-family) under §3 of the VAT Reduced Rates Regulation. The reduced rate applies to both equipment and installation labour when the contractor invoices a single bundled service. Standalone equipment purchases or installations on commercial property remain at 23% VAT. Battery storage equipment supplied separately from a PV installation typically falls under the standard 23% rate unless integrated into a comprehensive solar service. Confirm with the installer that they will issue a residential-construction-services invoice (kompleksowa usługa) to apply the 8% rate.

Czyste Powietrze (Clean Air) targets households heating with old solid-fuel boilers (typically coal or wood). It is administered by the Wojewódzki Fundusz Ochrony Środowiska i Gospodarki Wodnej (WFOŚiGW) at voivodeship level. The grant is tiered into basic, increased, and highest-tier brackets based on per-capita household income. While primarily a heating-replacement programme, Clean Air covers solar PV when installed alongside a heat pump or other qualifying heating change. As of 2026, the highest tier targets households with monthly per-capita income below PLN 1,090 (~€250). Combining Czyste Powietrze with Mój Prąd is permitted but cumulative: the same expense cannot be reimbursed twice. The application requires an audit (audyt energetyczny) for the highest tier and is submitted through the GOV.PL portal.