Serbia’s winter energy balance is becoming more exposed to international fuel prices and electricity imports as expensive oil and gas coincide with exceptionally weak hydropower production.
Local market reporting placed crude oil at approximately $105 a barrel, representing an increase of around 8% in one week, 17% over one month and 57% over the preceding year. A sustained price above $100 would create direct pressure on Serbian retail fuel prices and transport costs.
The government can temporarily limit the pass-through by adjusting excise duties, but that transfers part of the burden to the state budget. Maintaining reduced duties over an extended period would weaken fiscal revenue or require compensation elsewhere.
Natural gas presents a more immediate winter risk. European hub prices have risen sharply amid supply concerns and the seasonal requirement to refill storage sites. Serbian supply remains heavily dependent on the continuation of its Russian gas arrangement and the availability of the route through Bulgaria.
The current extension of Serbia’s supply agreement with Russia expires at 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, but these sources do not fully eliminate the importance of Russian deliveries.
Electricity is the third pressure point. Low water levels have sharply reduced hydropower generation, with output at the Đerdap complex reported at around 20% of normal capacity. Thermal power plants are maintaining system stability, but reduced hydroelectric output increases Serbia’s need to operate lignite units and purchase electricity from neighbouring markets.
The timing of imports will be decisive. Weak hydrology often affects several Danube and Balkan markets simultaneously, pushing up regional day-ahead prices precisely when Serbia needs additional power. Romanian nuclear availability and Bulgarian generation constraints can further tighten the interconnected market.
Serbia has gas inventories, diversified supply options and a large domestic lignite fleet, making a physical shortage less likely than a significant increase in system costs. The more immediate risk lies in the combined financial effect of expensive imported electricity, higher gas prices and government intervention to restrain household and fuel bills.
