In recent months, solar energy has transitioned from a marginal player to a pivotal component of the South-East European electricity landscape. As of April 2026, significant developments indicate a robust acceleration in both utility-scale and distributed photovoltaic projects throughout the region.
Currently, solar generation constitutes approximately 15% of the regional power mix, with an increase of +630 MW noted in early April compared to previous periods. This rise in output occurs amidst a seasonal decline in overall demand, leading to midday oversupply conditions that are starting to influence pricing dynamics and export behaviors across interconnected markets.
A notable shift towards larger and more diverse solar projects is underway. In Bosnia and Herzegovina, state-owned utility EPBiH has initiated a 50 MW solar project in Gračanica, financed by €25 million from the EBRD and €15 million from UniCredit. This initiative is among the first utility-scale solar investments aligned with the country’s strategy for transitioning away from coal. The project’s location on rehabilitated mining land highlights a regional trend of converting former industrial sites into renewable energy resources.
Simultaneously, distributed solar systems are gaining traction within public infrastructure. EPBiH is rolling out rooftop photovoltaic installations at various operational facilities, with capacities ranging from 25 kW to 240 kW. Although these installations represent modest aggregate capacity, they play a crucial role in minimizing system losses and managing localized demand peaks.
Romania distinguishes itself as one of the most vibrant solar markets in South-East Europe, characterized by extensive portfolios that integrate photovoltaic generation with energy storage solutions. Recent advancements include large hybrid solar and battery projects backed by international investors, alongside an ambitious pipeline targeting gigawatt-scale capacity additions. This growth is supported by grid investments surpassing €280 million annually, aimed at facilitating increased renewable integration and enabling cross-border electricity exports.
In Greece, substantial strides have been made in solar deployment, with PPC completing 2.13 GW of solar capacity in Western Macedonia. This transformation of former lignite areas into renewable energy hubs is beginning to affect regional price structures, particularly during daylight hours when solar generation increasingly displaces gas-fired units.
Albania is also incorporating solar into its traditionally hydropower-dominated energy mix. Projects like the 140 MW Karavasta solar plant, along with new battery-linked facilities near Fier, reflect a strategic emphasis on flexibility to address hydrological variability and enhance export stability.
Montenegro’s solar pipeline remains less developed but holds strategic importance. Planned initiatives such as the 250–300 MW Briska Gora solar park and floating photovoltaic projects at Krupac indicate Montenegro’s intent to utilize its interconnections with Italy for renewable exports.
A common challenge across the region is emerging: grid capacity constraints. Over 120 GW of renewable projects across Europe face potential delays due to network congestion issues, affecting South-East Europe as well. Transmission limitations are increasingly influencing project timelines and investment decisions, compelling developers to prioritize sites with available connection capacity.
This grid constraint is also impacting market dynamics. As solar penetration intensifies, midday prices are being compressed systematically, leading to intra-day price fluctuations that alter trading strategies. During April 1–15, electricity prices on South-East European exchanges averaged between €94 and €102/MWh, reflecting growing volatility linked to peak solar output.
The ramifications for market structure are profound; solar energy is no longer merely lowering fuel costs but is actively reshaping dispatch patterns, export flows, and pricing mechanisms. As generation costs during peak sunlight hours approach zero, the demand for flexibility—through storage solutions or cross-border capacity—has become increasingly critical.
The outlook for solar development in South-East Europe points towards ongoing expansion with an emphasis on system integration rather than mere capacity growth. Future investments are likely to focus on hybrid projects that combine solar power with storage capabilities or co-locate with existing hydroelectric facilities. The region’s success in converting this increased capacity into sustainable export revenues will hinge on addressing grid bottlenecks and aligning market frameworks with high levels of renewable penetration.
