On 30 December 2022, Bulgaria introduced a law regarding windfall tax on electricity companies. The windfall tax applies the period from 1 December 2022 to 30 June 2024 with an installed capacity of more than 1 MWh in accordance with Council Regulation (EU) 2022/1854 on an emergency intervention to address high energy prices. A 90% tax is applicable on the difference between the market revenue per MWh and the prescribed revenue ceiling for the relevant type of producer.