Surging installations driven by C&I segment and supportive policies, while grid connection frameworks hold key to future utility-scale expansion.
Longsun Green, a leading manufacturer of high-quality solar mounting systems, is pleased to share insights into the dynamic solar energy market of Croatia. Recent data from the Renewable Energy Sources of Croatia Association (RES Croatia) reveals a period of significant development and notable achievements for the sector.
According to RES Croatia, Croatia added approximately 417 MW of new solar photovoltaic (PV) capacity between December 2024 and December 2025. This growth follows the addition of 397 MW throughout 2024, demonstrating stable market expansion. A major milestone was reached in May 2025 when the nation's cumulative solar capacity surpassed 1 Gigawatt (GW). By the start of December 2025, total operational capacity stood at an impressive 1,255 MW.
Marija Hanzec, Head of Communications at RES Croatia, indicated that if the current installation rate is maintained, solar power is poised to overtake wind energy as Croatia's leading renewable energy source by installed capacity in early 2026.
The market structure shows a clear trend: the majority of installed capacity, about 1,136 MW, is connected to the distribution grid. RES Croatia estimates that commercial and industrial (C&I) customers account for nearly 75% of this capacity, with residential installations making up the remaining quarter.
Policy measures have been instrumental in shaping the market. Hanzec noted that subsidy programs, especially for rooftop PV, were a primary driver in 2025. The residential segment also saw accelerated activity ahead of regulatory changes to net metering, which took effect at the start of 2026. The new framework involves selling surplus electricity at a rate lower than the retail price, which is anticipated to extend system payback periods. Consequently, a softening of residential demand is expected in the near term.
Conversely, the C&I segment remains strong, fueled by investment incentives and some of the highest electricity prices in Europe. "In this economic climate, solar energy presents a highly compelling solution for businesses seeking to reduce operational energy costs," Hanzec stated, expressing confidence that this trend will continue through 2026.
While the utility-scale market is still developing, its potential is vast. Currently, 119 MW of solar capacity is connected to the transmission grid. However, Hanzec highlighted that a pipeline of approximately 3.5 GW of shovel-ready, utility-scale renewable projects-about 75% of which are solar-awaits clarity on grid connection fees for the transmission network. Although the Minister of Economy has advocated for zero connection fees, the final decision rests with the Croatian Energy Regulatory Agency (HERA), creating a temporary bottleneck for large-scale deployment.
Hanzec identified the resolution of grid connection costs as the most significant hurdle for future renewable growth. She also emphasized the need for a clearer regulatory framework for battery energy storage systems to alleviate grid congestion and facilitate further solar integration.
Croatia's National Energy and Climate Plan (NECP) targets 2,382 MW of solar capacity by 2030. With over 1,255 MW already operational, the country is more than halfway to its goal. "Achieving the full NECP target will require unlocking the potential of large-scale solar projects, as rooftop and smaller installations alone will not suffice," Hanzec explained.
Recent legislative updates, including a new Spatial Planning Act with provisions for agrivoltaics and floating solar, are shaping the future landscape. While no such projects are yet online, several have obtained energy permits. Hanzec anticipates future legal refinements to further align national regulations with EU directives, reinforcing the status of renewable energy projects as being in the overriding public interest.
As a global provider of innovative and reliable solar mounting solutions, Longsun Green closely monitors international market trends like those in Croatia. We are committed to supporting the global energy transition by offering products that meet the evolving needs of residential, commercial, and utility-scale projects worldwide.
About Longsun Green
Longsun Green Energy Technology Co., Ltd. is a specialized manufacturer dedicated to the design, production, and supply of a comprehensive range of high-performance solar mounting systems. Our solutions cater to rooftop, ground-mounted, and specialized solar applications, ensuring optimal energy yield and long-term reliability for our partners across the globe.
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Amber
Email: amber@longsungreen.com
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