Slovenia’s photovoltaic market is entering a new phase, marked by the introduction of a nationwide energy sharing mechanism, growing adoption of battery storage, and a recovery in the residential segment following two years of slower growth.
“The recently launched energy-sharing framework has attracted strong initial interest, with more than 1,000 registrations recorded,” Nina Hojnik, General Manager of the Slovenian Photovoltaic Association (ZSFV) told pv magazine.
The energy sharing mechanism will allow electricity producers and consumers to allocate solar generation between different metering points through a centralized platform. Participants will be able to determine their own arrangements, including sharing electricity at market prices, symbolic prices, or without charge.
Hojnik told pv magazine the new framework could expand access to solar energy for consumers who do not have suitable rooftops for their own installations. “Because the mechanism is available nationwide, generation and consumption do not need to occur at the same location,” she explained.
Hojnik explained that the initial registration period has also brought challenges related to consumer understanding. The energy sharing mechanism will operate on 15-minute settlement intervals and requires users to define allocation keys in advance, either on a monthly or annual basis.
The first wave of registrations are mainly from existing prosumers transitioning from Slovenia’s previous net-metering framework, particularly those with relatively large rooftop systems. Industry observers expect broader participation over time, Hojnik said, as consumers become more familiar with the mechanism.
The launch comes as Slovenia continues its gradual transition away from net metering, a policy that played a central role in accelerating residential PV deployment over the past decade. Existing net-metering installations will continue to retain their rights under current legislation for the operational lifetime of the system, which can extend up to 25 years.
The residential segment has shown signs of recovery in 2026 after a slowdown that followed the energy-price crisis and subsequent policy changes.
Hojnik told pv magazine residential installation volumes have already exceeded 2025 levels. Grid connection approvals have also stabilized compared with recent years.
The recovery is being supported by declining system costs and incentives for battery storage. Hojnik said rebate programs have significantly improved the economics of residential solar-plus-storage systems, contributing to payback periods that are typically estimated at between five and seven years.
Commercial and industrial (C&I) installations continue to account for the majority of new activity in Slovenia’s PV sector.
Companies are investing in behind-the-meter solar systems to reduce electricity costs and support corporate sustainability objectives, Hojnik said. Storage retrofits are also becoming more common as businesses seek greater operational flexibility and resilience.
Hojnik estimates that rooftop systems account for more than 95% of Slovenia’s installed solar capacity, while utility-scale projects represent less than 5% of the market, with grid constraints and land-use considerations continuing to present challenges for larger projects.
As Slovenia’s solar market matures, battery storage and digital energy-management tools are expected to become increasingly important.
The shift reflects broader changes taking place across European solar markets, where self-consumption, flexibility, and distributed energy resources are becoming more important as traditional net-metering schemes are phased out.
“The only stable thing we’ve experienced in the last five years is instability,” Hojnik said said. “If you want to buffer your home or business against future economic and grid-related pressures, decentralized solar combined with storage is becoming an increasingly attractive option.”
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