Serbia’s winter preparations are being shaped by oil, gas and weak hydrology, with the winter energy balance becoming more exposed to international fuel prices and electricity imports. Expensive oil and gas coincide with exceptionally weak hydropower production, increasing reliance on external market signals. Local reporting put crude oil at around $105 a barrel. The same reporting showed an increase of about 8% in one week, 17% over one month and 57% versus the preceding year.
A sustained crude price above $100 would put pressure on Serbian retail fuel prices and transport costs. The government can temporarily reduce the pass-through to consumers by adjusting excise duties. Such measures shift part of the burden to the state budget. Keeping excise duties reduced for a longer period would weaken fiscal revenue or require compensation elsewhere.
Gas supply dependence and European hub price pressure
Natural gas is identified as a more immediate winter risk for Serbia’s system costs. European hub prices have risen sharply amid supply concerns and the seasonal requirement to refill storage sites. Serbian gas supply remains heavily dependent on continuing its Russian gas arrangement and on the availability of the route through Bulgaria. This structure keeps domestic costs linked to international pricing conditions.
The current extension of Serbia’s supply agreement with Russia runs until the end of September. Another extension would provide access to gas at prices below prevailing European hub levels. Serbia can also draw on supplies contracted from Azerbaijan, domestic storage at Banatski Dvor, and capacity leased in Hungary. These additional sources do not fully remove the importance of Russian deliveries.
Hydropower shortfall drives thermal use and cross-border purchases
Electricity is the third pressure point as low water levels reduce hydropower output. Generation at the Đerdap complex has been reported at around 20% of normal capacity. Thermal power plants are maintaining system stability despite the hydro decline. Lower hydropower output increases the need to run lignite units and buy electricity from neighbouring markets.
The timing of imports is expected to be decisive during periods of weak water conditions. Weak hydrology can affect multiple Danube and Balkan markets at the same time, lifting regional day-ahead prices when Serbia needs additional power. Romanian nuclear availability and Bulgarian generation constraints can further tighten conditions in the interconnected market.
Cost exposure outweighs physical shortage risk
Serbia has gas inventories, diversified supply options and a large domestic lignite fleet, which reduces the likelihood of a physical shortage. The more immediate risk is described as a combined financial impact rather than an absence of supply. That effect includes expensive imported electricity, higher gas prices, and government intervention aimed at restraining household and fuel bills.
