Czech firms must reassess electricity tariffs as new rules take effect in 2027

From 1 January 2027 the Czech Republic will change the way regulated electricity payments are calculated for customers on high (VN) and very high voltage (VVN) networks. The new tariff structure replaces the current payment for reserved capacity with a payment for the reserved power stipulated in the connection contract, plus a charge for the maximum quarter‑hour power actually drawn. About 25 000 high‑voltage customers will be affected. Companies have several months to evaluate the impact; those whose reserved power matches actual use may save money, while others could face higher costs. The Energy Regulatory Office (ERÚ) offers a calculator based on simulated 2026 prices, with final rates to be set after the November measurement.

At the same time, new measurement regulations have come into force, allowing accurate recording of emerging activities such as electricity storage, aggregation and flexibility services. The amendment to the electricity‑measurement decree sets requirements for sub‑measurements, data accuracy and transmission, targeting entities involved in battery storage, electric‑vehicle charging, heat pumps and cogeneration. The changes do not affect ordinary households. Ministry of Industry and Trade spokesperson Tadeáš Provazník described the rules as a technical prerequisite for a modern, renewable‑driven energy system, while Electree co‑founder Lubomír Káňa highlighted the shift toward active management of the grid.