Electricity and coal production in the Federation of Bosnia and Herzegovina weakened in July, increasing pressure on a system that remains heavily dependent on thermal generation while domestic fuel output declines.
Gross electricity generation fell to 508 GWh, from 533 GWh in July 2025.
Brown-coal output dropped by almost 30% year on year to 211,783 tonnes, from 300,931 tonnes, while lignite production declined to 112,864 tonnes, from 140,092 tonnes.
Thermal plants nevertheless accounted for approximately 60.6% of Federation electricity generation during the month.
The figures point to a growing supply risk.
Coal remains the dominant source of dispatchable electricity in the Federation, meaning prolonged weakness in mine production could eventually feed directly into thermal plant availability.
The problem is amplified by weak regional hydrology.
Bosnia and Herzegovina traditionally relies on hydro generation to balance its coal fleet and support exports during favourable water conditions.
When hydro production weakens at the same time as coal supply, the system has fewer domestic options and becomes more exposed to imports.
The July data therefore add to broader concerns over the condition of the country’s mining and thermal sectors.
Ageing mines require investment to maintain production, while older coal plants face rising maintenance costs and increasing environmental and carbon-related pressure.
At the same time, the country cannot rapidly remove coal because replacement flexible capacity is not yet available at sufficient scale.
Fuel-import data point to a wider deterioration in domestic energy self-sufficiency.
Petroleum-product imports increased to around 140,850 tonnes, from 125,739 tonnes in July 2025, with diesel accounting for about 65.8% of the total.
Diesel imports do not directly replace coal generation, but the increase reinforces the wider picture of stronger dependence on imported energy.
The electricity transition therefore presents a difficult sequencing problem.
Bosnia needs substantially more wind and solar capacity to reduce its dependence on coal, but intermittent generation alone cannot replace thermal plants.
Storage, network investment and better hydro optimisation will also be required.
CBAM adds urgency.
Coal-heavy electricity exported to EU markets will face increasing carbon-related commercial disadvantages, reducing the attractiveness of a model that historically relied partly on regional power exports.
This creates pressure to reduce coal exposure before the underlying system has been fully prepared to operate without it.
The July data illustrate that risk.
Coal production is already weakening while thermal generation still represents more than 60% of Federation electricity output.
Unless mine performance stabilises or replacement generation accelerates, Bosnia could increasingly move from an exporter during favourable conditions towards a market more dependent on regional imports during periods of weak hydro and coal availability.
