Kyiv power plants halt production after attacks Teploelektrostantsiya-5 (TEC-5), TEC-6 and Darnitskaya TEC have stopped power production following Russian attacks, according to Ukrainian media sources. The capital now relies heavily on electricity supplied from other regions through the United Energy System. However, sufficient generation in the general network does not guarantee delivery to Kiev. The city requires complete infrastructure, especially substations, which are regularly targeted by Russian forces and risk an outage.