US development agency backs DTEK's 400 MWh Ukraine battery portfolio

The DFC approval is one of the agency's largest debt-finance transactions for Ukraine and its largest in the country's energy sector since the full-scale invasion began in 2022. DTEK and Fluence completed the six-site portfolio in six months, with all systems entering operation in September 2025. The financing supports critical grid infrastructure already in service and signals that long-term international capital can participate in Ukraine's energy recovery despite continuing attacks on the power system.