New Voltage Standard in Ukraine Starting July 2025

Starting July 1, 2025, a new European voltage standard of 230/400 V will be implemented in Ukraine.

This is outlined in the resolution of the National Commission for State Regulation in the Spheres of Energy and Public Utilities (NEURC) No. 550 dated April 15.

The document amends the Distribution System Code, introducing European norms for determining the quality of electricity supply. The nominal voltage will now be set at 230/400 V, with an allowable deviation of 10% (ranging from 207 to 253 V).

The DSTU EN 50160:2014 standard, which regulated voltage characteristics in electrical networks, became invalid in March 2024. In May of that same year, a new standard harmonized with the European EN 50160 was approved, which took effect on March 1, 2025.

According to NEURC, the transition to European standards is expected to positively impact the quality of electricity supply. A stable voltage will reduce the risk of damage to sensitive household appliances and decrease the need for additional protective devices like stabilizers. Furthermore, this will enhance energy efficiency, allowing electrical appliances to operate under optimal conditions without overloads and losses.

The DTEK group emphasizes that household appliances are produced in accordance with European Union requirements, thus the transition to the new voltage standard will not adversely affect them.