Ukraine Adopts EU Voltage Standard in Major Energy Sector Reform
Ukraine has officially transitioned to the European standard for electrical voltage, adopting the 230/400 V system as of July 1.
The Gaze reports on this with reference to Ukrinform.
The move, aimed at harmonizing the country’s power infrastructure with that of the EU, is expected to significantly improve the quality and reliability of electricity supply nationwide.
According to a resolution by the National Energy and Utilities Regulatory Commission (NEURC), amendments have been made to Ukraine’s Distribution System Code.
These changes implement EU-level standards for voltage quality and tolerance, now allowing for a deviation range of ±10%, meaning voltage levels may legally vary between 207 V and 253 V.
The reform replaces the outdated national voltage standard, which was officially withdrawn in March 2024.
In May 2024, Ukraine adopted a new standard harmonized with the European EN 50160, which came into force on March 1, 2025.
Ukrainian energy authorities, including NEURC and leading energy provider DTEK Group, have emphasized that the change is both timely and beneficial.
Most household appliances already conform to EU requirements, meaning the new standard will not negatively affect their operation.
Instead, the transition is expected to reduce voltage fluctuations, minimizing risks of damage to sensitive electronic devices and cutting the need for voltage stabilizers or other protective equipment.
Additionally, energy efficiency is expected to improve, as electrical devices will now function more consistently in their optimal performance range, reducing energy losses and potential overloads.
This reform is part of Ukraine’s ongoing effort to modernize its energy sector, foster integration with the European energy market, and improve resilience amid ongoing challenges.
Read more on The Gaze: Ukraine is Ready to Start EU Membership Talks