Households that heat their homes with coal have a clear incentive to make their purchases now, during the summer months, as prices are at their lowest point of the year and stocks are ample. Waiting until the autumn could mean paying several hundred zlotys more per tonne, as seasonal demand drives costs sharply higher.
The logic behind buying coal out of season is simple: supply currently outstrips demand, and retailers are offering promotions to clear storage space. From April to June, prices typically hit their annual floor, and this year is no different. Those who delay risk not only higher prices but also longer delivery times, as logistics become strained when the heating season begins in earnest.
Market observers note that the gap between summer and autumn prices can reach several hundred zlotys per tonne. For a typical household that burns three to five tonnes during the winter, this translates into savings of up to 1,500 zlotys or more. The decision to stock up now is therefore more than a convenience – it is a rational financial strategy.
Seasonal price dynamics and market behavior
Coal is a textbook example of a seasonal commodity. Its price curve is inverse to the temperature curve: when it is warm, coal is cheap; when it gets cold, it becomes expensive. This pattern has held for decades, although the magnitude of the seasonal swing has increased in recent years due to logistical bottlenecks and changes in import patterns.
– The best time to buy is between April and June – that is when sellers are most willing to negotiate and offer the best conditions – explained analysts from the KB.pl portal. – Waiting until September or October is risky, because prices can jump by as much as 300-500 zlotys per tonne in a matter of weeks.
In Poland, the market is dominated by domestic producers such as Polska Grupa Górnicza (PGG), but local coal yards also play a major role. While PGG offers lower base prices, it often requires customers to arrange their own transport. Local yards, on the other hand, include delivery in their offers and can usually supply the fuel the next day, albeit at a premium.
Practical advice for households
For a family budgeting wisely, the message is unambiguous: act now. Even if the savings are not enormous in absolute terms, the avoidance of stress and uncertainty during the autumn rush has its own value. Many households learned this lesson during the energy crisis of 2022, when queues at coal depots stretched for days and prices doubled almost overnight.
While the current situation is far from that extreme, the underlying mechanism remains the same. Stockpiling coal in July means locking in a price that already includes a summer discount. By late September, those same tonnes will cost considerably more, and availability may become an issue.
Some consumers worry that buying too early might lead to quality problems – coal stored in a damp shed could lose calorific value. In practice, however, modern storage methods and proper covering eliminate most of this risk. Dry, ventilated spaces keep coal in good condition for months.
Broader market context
The current price signal also reflects wider trends in the global energy market. European coal imports have stabilised after the turbulence of the early 2020s, and supply chains have adapted to new trade routes. Polish mines, despite facing long-term pressures from decarbonisation policies, are still producing enough to meet domestic demand at competitive prices.
Nevertheless, analysts caution that the era of cheap coal is unlikely to return. Carbon costs under the EU Emissions Trading System add a permanent premium to coal-fired heat, and geopolitical risks – such as disruptions in Russian or Colombian supply – can resurface at any time. The summer window is therefore not just a chance to save money, but also an opportunity to secure a strategic reserve before any external shocks materialise.
Źródło: wnp.pl, Fot. Shutterstock/kemdim
