Ukraine: Improving heating system stability in Zaporizhzhia

Previously, city technicians often faced problems restarting pumps after power cuts. High inrush currents prevented quick relaunches, and this caused extended interruptions in heating supply — including for schools and kindergartens. Even short delays meant buildings could become uncomfortably cold, particularly during sub-zero nights.

The new frequency converters stabilise the power-up process and protect the system from overload. Two of them (4 kW and 18.5 kW) have already been installed at the boiler house on Stepova Street, which is now operating with greater efficiency.

Three more devices — 55 kW, 90 kW, and 110 kW — are being integrated into the network at the Dniprovske Highway site, with final setup expected by November.

Supporting local utilities under pressure

The upgraded equipment serves around 6,000 connections, including residential buildings and five educational facilities. For city engineers working to maintain heating across Zaporizhzhia, having modern and energy-efficient tools is essential — especially when access to funding and spare parts remains limited.

The Danish Refugee Council will continue supporting critical infrastructure improvements where local authorities identify the most urgent needs. In a region where system reliability is under constant pressure, even small upgrades can make a significant difference for people trying to get through the winter.