Romanian power supply is tightening as domestic generation weakens and a 285 MW coal unit goes offline, raising reliance on cross-border deliveries during evening demand peaks. On the evening of Oct. 3, Romanian generation was around 2.9 GW while instantaneous imports approached 3.4 GW. That level of inflows placed imports within roughly 600 MW of Transelectrica’s estimated maximum import capability of around 4 GW.
The margin narrowed further on Oct. 5, when unit 5 at the Turceni lignite plant tripped after a boiler failure. At the time, the 285 MW block was Turceni’s only operational unit. The unit is provisionally expected to return on Oct. 10.
Domestic generation constraints during evening peak
After the outage, Romanian coal generation fell below 350 MW. The disruption occurs during an already difficult period for the power system. Nuclear availability has been constrained, hydropower output remains weak, and solar output disappears rapidly during the evening peak.
Wind production has also been volatile, contributing to a narrower domestic supply window in the hours when demand rises. With renewable output falling, Romania becomes more dependent on imports from Bulgaria, Hungary, and other neighbouring markets. Imports act as a safety valve, but their effectiveness depends on both available cross-border capacity and generation availability elsewhere in Southeast Europe.
Regional scarcity signals and import timing risk
Regional prices above €200/MWh indicate that neighbouring markets are also tightening. Romania’s immediate exposure is therefore linked to whether enough electricity can be imported during a narrow group of evening hours rather than across an entire day. The Turceni failure reduces that import margin during the period when domestic generation is lowest and regional demand is highest.
