In the week to 20 September, Greece increased net electricity exports, with net exports rising from 91.93 GWh to 126.87 GWh. At the same time, Bulgaria remained the larger regional exporter, although its export surplus declined. The changes were linked to shifts in electricity demand and generation across both markets.
Greece: higher net exports amid lower demand and gas output
Greek electricity demand fell by 9.32% to 1,019.36 GWh. Gas-fired generation declined by 12.46%, while wind output increased by 10.3%. The wind rise partly offset a 9.2% fall in solar generation.
These generation and demand movements coincided with an increase in Greece’s net export level over the week. Greece’s weekly day-ahead price averaged €155.42/MWh. The data show net export growth aligned with reduced consumption and lower gas-fired output.
Bulgaria: larger surplus but weaker weekly export balance
Bulgaria’s net export balance stood at 247.47 GWh, down 9.90% from the previous week. Hydropower output fell by 28.51% to 37.61 GWh, while total thermal generation was broadly stable. Bulgaria’s weekly day-ahead price dropped by 2.93% to €162.07/MWh.
The weekly figures indicate that Bulgaria’s surplus remained well above Greece’s, even as its export balance narrowed. The reduction in hydropower contribution occurred alongside the smaller net export position for the week.
Implications for cross-border trading and future flow direction
The two markets reached export positions through different combinations of demand and generation changes during the week. Greece exported more as consumption decreased and gas-fired output fell, while Bulgaria maintained a much larger surplus despite a smaller export balance tied to lower hydro output.
For cross-border traders, the key question is whether these export volumes persist as autumn demand changes. One week provides direction for flows, but hourly generation patterns and border capacity will determine where power can be sold.