Revenues from the sale and distribution of heat are regulated revenues. Energy companies independently set tariffs and present them to the President of the Energy Regulatory Office (the “ERO President”) for approval. Heat production at PGE Group takes place in cogeneration units, which tariffs for heat are calculated using a simplified approach (compared to tariffs based on a full cost structure), based on reference prices, which are based on average sales prices for heat generated in units with specific fuel other than cogeneration units. They are published each year by the ERO President. Tariffs for heat production for cogeneration units in a given tariff year thus reflect changes in the costs of heat-generation units (not co-generation units) in the previous calendar year. The cost approach is applied in the case of tariffs for heat distribution, which allows to cover justified costs (mainly the costs of heat losses and property tax) and a return on invested capital, in line with guidelines from the ERO President. Distribution tariffs for heat are in place at branches in Gorzów and Zgierz, as well as by Kogeneracja S.A., PGE Toruń and Zielona Góra CHP.
Generation of heat and electricity is directly related to key variable costs of the segment, i.e. the cost of production fuel used (in particular, hard coal and gas) and the cost of fees for CO2 emissions.
Electricity production in high-efficiency cogeneration is additionally remunerated. Until 2018, CHPs generated revenue from the sale of energy origin certificates, i.e. cogeneration certificates (yellow and red). From 2019, due to a change in support model, they receive support at a level covering increased operating costs related to production. For large units, this are set on an individual basis. The support mechanism in the form of certificates is in place also for biomass-fired generating assets. This type of production is additionally remunerated by awarding origin certificates, i.e. green certificates, the sale of which generates additional revenue, within the segment obtained in biomass unit in Kielce CHP.