Regional electricity markets across Southeast Europe moved sharply lower on 14 May, with most exchanges correcting after the higher pricing environment earlier in the week. The decline was linked to stronger renewable generation and higher cross-border imports into the region. Softer gas sentiment and lower demand pressure also played a role, despite a moderate recovery in temperatures.
Day-ahead price moves across key exchanges
Hungary’s HUPX day-ahead baseload price fell to €120.07/MWh, down €16.5/MWh day-on-day. Romania’s OPCOM closed at €121.10/MWh, also down more than €16/MWh. Slovenia’s BSP dropped to €110.66/MWh, while Croatia’s CROPEX fell to €113.13/MWh.
Montenegro’s BELEN declined to €100.32/MWh, and Greece remained the lowest-priced major market at €94.38/MWh. Serbia’s SEEPEX was among the few exchanges to rise, increasing to €115.27/MWh. The higher SEEPEX level pointed to continued structural tightness in Serbia’s balancing position relative to neighboring markets.
Imports rise in HU+SEE power balance
The regional power balance showed a larger import position into the wider HU+SEE system, with net imports reaching approximately 926 MW. That was almost 1 GW higher than the previous day. Core imports from Austria and Slovakia into the Hungarian and SEE system climbed to 1,140 MW.
The increase in west-to-east flow economics was associated with the Hungarian-German spread widening above €25/MWh. The figures indicate stronger cross-border activity feeding into the regional balancing picture.
Generation mix points to renewable-led softening
Total SEE generation increased by roughly 1.7 GW day-on-day, reaching 28,069 MW. Solar output rose to 5,543 MW, while hydro generation climbed to 6,542 MW. Wind generation stayed stable above 3.5 GW, supporting midday price compression across the region.
Coal generation also increased to 4,486 MW, showing that thermal units remained commercially active despite weaker spot pricing levels. The generation changes aligned with the broader move lower across day-ahead markets.
Intraday volatility and evening price rebounds
The intraday pattern showed a volatility profile developing across SEE electricity markets. Across HUPX, BSP, OPCOM and SEEPEX, prices collapsed during solar-heavy midday hours before rebounding into evening peaks. Several markets recorded evening prices above €180-260/MWh.
Serbia’s SEEPEX maintained relatively elevated minimum prices compared with neighboring exchanges, with the daily minimum still above €50/MWh. This reflected limited domestic flexibility alongside continued balancing dependence.
Serbia as transit and balancing corridor
Cross-border commercial flow data highlighted Serbia’s role as a regional transit and balancing hub over the past seven days. Average imports from Hungary into Serbia were about 922 MW baseload and 724 MW peak. Flows on the Bulgaria-to-Serbia and Bosnia-to-Serbia corridors also remained active.
At the same time, Romania continued exporting strongly toward Hungary. The data reinforced a north-south flow structure across Central and Southeast Europe.
Fuel market signals and carbon price easing
Austrian CEGH gas for June traded around €48.23/MWh, down on the day. EUA carbon prices eased toward €75/t. Coal futures softened slightly as well, lowering marginal thermal generation costs across the region.
Batteries, demand response pilots, and hydrology support supply
The regional structural picture continued to be shaped by solar expansion and higher midday oversupply risk. Romania’s PPC Energie pilot project offers households free electricity during selected solar-heavy periods. EVN Macedonia commissioned a 10 MW / 20 MWh battery storage system at Probistip.
The hydrology backdrop also supported generation levels. Danube flow indicators remained elevated relative to long-term averages, sustaining hydro production across the Balkan system. This limited upside pressure on regional spot markets.
Diverging intraday pricing tied to solar output patterns
The market direction pointed toward a more fragmented pricing structure driven by deep solar-related intraday troughs and stronger evening ramps. The widening spread between midday and evening pricing became a central commercial theme for SEE electricity trading during 2026. Flexible gas, hydro and battery storage operators were highlighted as key participants affected by this pattern.