Data observatory
Aggregated data collection and economic impact estimates.
Economic observatory
The Committee is collecting economic and production data from members in order to represent aggregated and documented effects of compensations on small and medium-sized photovoltaic producers.
- MW represented and annual output.
- Average withholding percentage and cash-flow impact.
- Impact on debt service, maintenance and regulatory obligations.
- Estimated value of avoided emissions and avoided gas imports.
Updated data: 2024, 2025 and H1 2026
The consolidated 2024 baseline is the GSE statistical report. For 2025 and H1 2026, the website refers to Italia Solare analyses based on Terna Gaudì data.
| Date | PV plants | Total capacity | New capacity |
|---|---|---|---|
| 31 Dec 2024 | 1,875,870 | 37,002 MW | 6,664 MW in 2024 |
| 31 Dec 2025 | 2,092,088 | 43,513 MW | 6,437 MW in 2025 |
| 30 Jun 2026 | 2,255,654 | 46,606 MW | 3,093 MW in H1 2026 |
Where the growth is happening
By 30 June 2026, capacity splits roughly into three segments: residential under 20 kW (12,183 MW, 26% of the total), commercial and industrial between 20 kW and 1 MW (20,004 MW, 43%, now the largest single segment), and utility-scale above 1 MW (14,419 MW, 31%). In the first half of 2026 residential additions actually fell year-on-year, while commercial, industrial and utility-scale capacity kept growing — the market is shifting toward larger, business-driven installations rather than households.
Lombardy, Veneto, Lazio, Emilia-Romagna, Puglia, Sicily and Piedmont are the leading regions by installed capacity, each above 3.6 GW at the end of 2025; plants are also present, in smaller numbers, across the rest of the country from the Alps to Calabria.
CO2 avoided, and why the number needs care
Italian solar generated 44.3 TWh in 2025. Multiplied by the national average emission factor for thermal generation, that output corresponds to roughly 16.2 million tonnes of CO2 avoided — a useful order of magnitude, not a precise physical measurement: the electricity actually displaced hour by hour depends on which plants were on the margin at each moment. On that same standardised basis, avoided emissions have grown steadily since 2020, broadly tracking the growth of installed capacity.