According to the Slovenian Photovoltaic Association, Slovenia installed 298.8 MW of solar capacity in 2024. This total includes 191.5 MW from residential systems, 100.8 MW from commercial and industrial projects, and 6.5 MW from municipal installations.
The 2024 installation marked a significant decrease compared to the 486 MW added in 2023, bringing Slovenia’s cumulative solar capacity to 1.4 GW. The residential market, which holds the largest share at 742 MW, has nearly stalled due to several factors, including the end of net metering, changes in public opinion, uncertainty surrounding the new tariff system, and ongoing discussions about nuclear energy.
In October 2024, Slovenia introduced a new tariff system that replaced peak and off-peak pricing with network fees that vary by time of day and season. This new system aims to encourage active consumption and is expected to boost investments in hybrid solar solutions. The Association is optimistic about 2025, forecasting the addition of 250 MW of new capacity, potentially rising to 400 MW by 2026 if financing for municipal projects is secured and all approved self-consumption projects for businesses and communities are implemented.
To support the solar market, the Association’s Director, Nina Hojnik, called for comprehensive flexibility measures and a transparent, two-year subsidy and support plan to ensure market stability. She also emphasized the importance of compliance with 2023 legislation, which mandates solar installations on existing roofs and parking areas larger than 1,700 square meters, as well as on newly built roofs and canopies exceeding 1,000 square meters.
In January 2025, Slovenia’s Ministry of Cohesion and Regional Development launched a 16 million euro program to support solar energy communities with projects of at least 100 kW capacity.
