Electricity prices across much of Southeast Europe moved above €200/MWh for Oct. 5 delivery as weekday demand increased and wind output fell. Greece also recorded hours of negative prices during periods of heavy solar production.
On HUPX, Hungary’s day-ahead average rose by €71.90/MWh to €232.76/MWh. Romania increased by €67.50/MWh to €228.48/MWh. Croatia settled at €219.83/MWh, while Slovenia reached €217.71/MWh and Bulgaria posted €203.78/MWh.
Albania recorded the largest rise in the region, climbing by almost €120/MWh to €277.08/MWh. Regional electricity demand increased by about 10.6%, reaching 28.7 GW. Forecast wind output declined by around 886 MW.
Net imports into the monitored SEE region increased to roughly 1.64 GW. Serbia remained comparatively low at €169.68/MWh, leaving SEEPEX more than €60/MWh below Hungary and Romania.
The price gap reflected limited cross-border capacity, with cheap Serbian power not fully offsetting higher premiums in neighbouring markets when transmission routes were congested or already heavily utilised. Greece showed a different pattern, with a daily average around €148–150/MWh. Solar output pushed prices below zero for almost eight hours before values rebounded sharply after sunset.
Renewables timing and grid constraints shape regional price spreads
The market conditions highlighted differences between countries facing evening scarcity and those dealing with midday renewable oversupply. The resulting value depended on when and where each megawatt was available across the regional system.
This environment supported a commercial premium for flexibility resources including batteries and pumped hydro, alongside flexible demand and transmission capacity able to move electricity across both time and geography.