Gross electricity generation in the Federation of Bosnia and Herzegovina (FBiH) fell to 508 GWh in July, down from 533 GWh in July 2025. Brown-coal production declined by almost 30% year on year to 211,783 tonnes, from 300,931 tonnes. Lignite output also decreased to 112,864 tonnes, compared with 140,092 tonnes a year earlier.
Thermal power plants still provided approximately 60.6% of FBiH electricity generation during the month. The July production pattern points to a tightening supply position for dispatchable generation.
Coal supply, thermal availability and hydrology constraints
Coal remains the dominant source of dispatchable electricity in the Federation, so sustained mine weakness can affect thermal plant availability. The challenge is reinforced by weak regional hydrology. Bosnia and Herzegovina has historically used hydro generation to balance its coal fleet and support exports when water conditions are favourable.
When hydro output weakens at the same time as coal supply, domestic balancing options become more limited. That shift increases exposure to imports during periods when both fuel and water availability are constrained.
Mining and plant ageing pressures on replacement timing
The July figures add to concerns about the condition of the country’s mining and thermal sectors. Ageing mines require investment to maintain production levels. Older coal plants face rising maintenance costs alongside increasing environmental and carbon-related pressure.
The Federation cannot rapidly reduce coal use because replacement flexible capacity is not yet available at sufficient scale. This affects how quickly thermal generation can be substituted when mine performance weakens.
Fuel imports and implications for energy self-sufficiency
Petroleum-product import data indicate a broader deterioration in domestic energy self-sufficiency. Petroleum-product imports rose to around 140,850 tonnes, from 125,739 tonnes in July 2025. Diesel accounted for about 65.8% of total petroleum-product imports.
Diesel imports do not directly replace coal-fired generation, but the increase supports the wider picture of stronger dependence on imported energy. The sequencing challenge for the electricity transition is therefore tied to timing between new capacity additions and system flexibility requirements.
Renewables buildout needs and carbon costs for coal exports
Bosnia requires substantially more wind and solar capacity to reduce dependence on coal, while intermittent generation alone cannot replace thermal plants. Storage, network investment and improved hydro optimisation are also cited as requirements for system operation during changing output conditions.
The EU Carbon Border Adjustment Mechanism adds urgency for coal-heavy electricity exported to EU markets. Carbon-related commercial disadvantages are expected to increase for such exports, reducing the attractiveness of a model that has relied partly on regional power sales.
The July data illustrate the risk from weakening coal output alongside thermal generation still representing more than 60% of FBiH electricity output. Without stabilisation in mine performance or acceleration in replacement generation, Bosnia could shift from exporting during favourable conditions toward greater reliance on regional imports during periods of weak hydro and coal availability.
