Serbia’s energy production in 2025 underscored critical vulnerabilities within its economic framework, particularly the reliance on hydrological conditions for electricity generation. The February 2026 report from MAT – Macroeconomic Analyses and Trends revealed a 1.8% decline in the electricity, gas, steam, and air-conditioning supply sector for the year, despite some recovery in the latter months. This decline reflects deeper systemic issues tied to hydropower dependency.
In 2025, hydropower output plummeted by approximately 18.5% compared to the previous year, driven by severe drought conditions affecting Serbia and neighboring regions. This drop began in April when reservoir levels and river flows decreased significantly due to prolonged dry weather across the Balkans and Central Europe. The reduced hydroelectric generation had cascading effects on industrial production, energy imports, and overall electricity system stability.
The critical role of hydropower in Serbia’s energy mix cannot be overstated. While lignite-fired thermal generation forms the backbone of electricity production, hydropower provides essential flexibility and rapid-response capacity during peak demand periods. The sharp decline in hydropower necessitated quick compensatory measures from other generation sources, often at a higher operational cost.
Throughout 2025, Serbia managed to stabilize its electricity supply primarily through increased thermal power output and a gradual rise in solar energy contributions. By mid-year, public thermal plants ramped up production, and solar installations began to play a more significant role in the grid. However, even these efforts could not fully offset the substantial losses from hydropower, leading to an overall sector decline.
Hydropower production showed signs of recovery towards the end of 2025, with an increase of 16.9% year-on-year in November and an additional 8.1% growth in December. This late-year rebound was insufficient to reverse the annual decline but indicated potential for recovery as conditions improved into January 2026 with an 11.1% rise in output attributed to favorable weather patterns.
The interplay between weather conditions and industrial performance highlights how fluctuations in electricity generation directly impact Serbia’s broader economic landscape. The electricity supply sector represents about 15.3% of total industrial production, meaning that significant drops in hydropower output can lead to immediate repercussions for industrial activity.
Furthermore, reduced hydropower generation heightens Serbia’s reliance on electricity imports during peak consumption periods or when thermal plant availability is low. This dependency can elevate costs within the energy system and affect industrial electricity pricing structures.
The challenges faced by Serbia’s energy sector in 2025 were compounded by additional industrial difficulties, including a downturn in petroleum refining output and a slowdown in European manufacturing demand. These factors collectively exposed several structural vulnerabilities within the Serbian economy.
Hydropower volatility also raises questions about Serbia’s energy transition strategy amidst climate change concerns. While hydropower is a renewable resource contributing to low-carbon objectives, its reliance on increasingly unpredictable weather patterns presents challenges for reliability within the electricity system.
Periods of drought can severely curtail hydroelectric production, while extreme rainfall can stress infrastructure operations. As such, relying solely on hydropower may not suffice for stable energy supply; complementary generation sources are necessary to mitigate risks associated with hydro variability.
Currently, lignite-based thermal power plants play a significant balancing role; however, their long-term sustainability is under scrutiny due to environmental concerns and evolving European climate policies. Concurrently, solar energy capacity is expanding across Serbia but introduces its own variability linked to daylight availability and seasonal changes.
The interaction between fluctuating hydropower output and expanding solar capacity necessitates enhanced grid management strategies and energy storage solutions to ensure a resilient electricity system capable of adapting to variability without destabilizing industrial operations.
This situation is not unique to Serbia; many European nations are grappling with similar challenges as renewable penetration increases alongside unpredictable climate patterns. However, Serbia’s context includes specific characteristics: a historical dependence on lignite and hydropower, tight connections between electricity supply and industrial performance, and integration with regional electricity markets that influence cross-border trade flows.
Thus, hydropower volatility should be viewed as a fundamental aspect of Serbia’s energy landscape rather than a temporary anomaly from 2025. The MAT report emphasizes this duality of challenges: hydrological uncertainty affecting hydroelectric generation juxtaposed with geopolitical risks impacting petroleum refining and ownership structures within the energy sector.
The partial recovery observed in late 2025 may provide temporary relief; however, underlying vulnerabilities persist. Policymakers must focus not only on seasonal variations in hydropower output but also on enhancing system resilience against such fluctuations through diversified generation capacities and robust transmission infrastructure.
Serbia has initiated steps toward modernization through investments in solar power and upgrades to thermal generation facilities. Nevertheless, the events of 2025 indicate that further actions are required—such as developing energy storage technologies and sophisticated market mechanisms—to effectively manage hydrological risks moving forward.
The experience of maintaining stability amidst challenging conditions serves as a crucial reminder that energy security encompasses more than just fuel availability; it is equally influenced by environmental factors and system adaptability. As Serbia integrates further into European markets while expanding its renewable capabilities, addressing hydrological risk will remain a central challenge for all stakeholders involved.
