Temperatures down, coal prices for energy up. Only minimally for now.

Domestic coal supplied from mines to the energy sector was 1.1% more expensive in September this year than in August this year, while coal for heating increased in price by 1.0% during that time, according to the ARP price indexes.

The Katowice branch of the Industrial Development Agency (ARP) publishes monthly indexes illustrating domestic coal prices for power and heating, compared to international prices. Publications occur at the beginning of the second month following the month being reviewed.

According to these data, the value of the national coal index for the energy sector amounted to PLN 331.12 per tonne in September (in qualitative terms PLN 15.31 per gigajoule of energy generated from coal), compared to PLN 327.40 per tonne in August (PLN 15.11 per gigajoule), PLN 336.12 in July (PLN 15.59 per gigajoule), PLN 348.32 in June (PLN 15.95 per gigajoule) and PLN 355.24 in May (PLN 16.29 per gigajoule).

Compared to September 2024, the value of this index was 29.9% lower.

The average value of the coal price index for the energy sector throughout the third quarter of this year was PLN 330.87 per tonne (PLN 15.30 per gigajoule). Compared to the third quarter of 2024, this index decreased by 30.6% and compared to the second quarter of 2025, it decreased by 6.0%.

The coal index for heating reached PLN 449.46 per tonne (PLN 19.35 per megajoule) in September this year, compared to PLN 445.23 in August (PLN 19.38 per gigajoule), PLN 430.74 in July (PLN 18.79 per gigajoule), PLN 461.97 in June (PLN 19.70 per gigajoule) and PLN 469.66 in May (PLN 20.04 per gigajoule).

Compared to September 2024, the index value for heating was 20.8 percent lower.

The average value of the coal price index for heating throughout the third quarter of this year was PLN 442.05 per tonne (PLN 19.18 per gigajoule). Compared to the third quarter of 2024, this index is 19.1% lower, and by the second quarter of 2025, it is 6.0% lower.

The ARP data also shows that coal prices worldwide declined month-on-month in September. In Western European ARA ports (Amsterdam, Rotterdam, Antwerp), prices fell by 5.3% compared to August 2025 and are 18.6% lower than in the same month a year earlier.

Converted to ARA port conditions, the value of Polish indices in June this year amounted to USD 105.89 per tonne of coal for the power industry and USD 133.84 per tonne of coal for heating.

The Polish Steam Coal Market Indices are a group of price indices for benchmark steam coal produced by domestic producers and sold on the domestic energy market and the domestic heat market. The Agency calculates them jointly with the Polish Power Exchange.

The PSCMI1 index (Polish Steam Coal Market Index) expresses coal prices for the so-called professional and industrial power industry (for electricity production), the PSCMI2 index - for industrial and municipal heating plants (for heat generation).

The indices are based on monthly ex-post data and express the selling price of hard coal in a quality tailored to customer needs. The value expressed in the indices is the net price of coal "on the wagon" at the loading point – excluding excise tax, insurance, and delivery costs. (PAP)

mtb/ malk/ asa/