Türkiye Adds 4.7 GW of New Solar in 2025, Nears 25 GW Total Capacity

Türkiye installed 4,694 MW of new solar capacity in 2025, bringing its cumulative total to 24,795 MW, according to figures from transmission system operator TEİAŞ. While slightly below the record additions in 2024, the market maintained strong momentum, having already deployed 3.1 GW in the first half of the year and surpassing its annual target by the end of June.

Growth was driven overwhelmingly by unlicensed self-consumption projects, particularly in the commercial and industrial (C&I) sector. In 2025, 4,175 MW of new capacity came from unlicensed plants, which now total 22,255 MW. The residential share within this segment remains “negligibly small,” said Bahadır Sercan Gümüş, energy analyst at Ember, indicating that C&I users dominate self-consumption installations. Until late 2025, businesses were able to build self-consumption solar plants at sites different from their consumption point; however, TEİAŞ has since signaled that same-location projects will now be prioritised.

Licensed solar projects contributed a further 521 MW in 2025, taking Türkiye’s licensed PV capacity to 2,540 MW. Gümüş expects licensed additions to pick up in 2026, supported by more than 2 GW of projects from earlier YEKA tenders and around 15 GW of solar-plus-storage projects that have received preliminary licences. Additional growth may come from floating PV, after the regulatory framework was finalised in December and the latest renewable energy tender included the country’s first floating solar project.

Looking ahead, Ember estimates that Türkiye has at least 120 GW of rooftop solar potential, but further reforms will be key to unlocking it. Gümüş argues that shifting from hourly to annual net metering, and adjusting grid distribution fees so producers are not effectively charged twice—both when drawing from and feeding into the grid—would significantly improve the business case for small-scale and residential systems while supporting continued expansion of the solar market.