Day-ahead price movements across SEE
The regional power market saw a strong bullish correction on 5 June 2026, with Central European prices rebounding after the prior day’s low renewable output pricing event. Hungary, Romania, Bulgaria and Greece converged around €114.7/MWh, while Serbia cleared at €86.8/MWh. The Serbian level maintained an approximate €28/MWh discount versus HUPX.
Hungary recorded the largest day-ahead increase, with HUPX rising by €26.3/MWh to €114.92/MWh. Romania, Bulgaria and Greece were close to €114.7/MWh, while Slovenia and Croatia followed at €108.8/MWh and €109.4/MWh. Albania remained the cheapest market at €70/MWh, and Montenegro traded at €105.3/MWh.
Serbia continued to stand out as the key regional anomaly, with SEEPEX clearing at only €86.78/MWh. This level was materially below neighboring coupled markets. The spread aligned with continued domestic generation adequacy and lower marginal pricing pressure relative to the wider Central European region.
Renewables shift and demand conditions
Regional demand increased marginally to 28.46 GW, while average temperatures rose to 20.8°C. Pricing was driven by a deterioration in the renewable generation balance alongside changes in thermal output. Solar output fell by 1.42 GW day-on-day from 6.28 GW to 4.85 GW.
Gas generation also declined sharply by 842 MW, reaching 2.95 GW. Wind partially offset the solar drop, rising by 444 MW to 2.32 GW, but it was not sufficient to fully counter weaker solar production. Hydro generation decreased by 305 MW, reaching 6.18 GW.
The resulting generation mix comprised hydro at 23%, solar at 18%, coal at 16%, nuclear at 13%, gas at 11%, and wind at 8%. Imports accounted for 11%. Hydro remained the dominant marginal balancing technology across SEE despite increasing solar penetration.
Cross-border flows and intraday price pattern
[Cross-border flows]
Regional net imports fell sharply to 1,951 MW, down by 1,088 MW from the previous day. Imports from CORE markets declined by 1,536 MW, falling to 2,604 MW. The import reduction coincided with the collapse of the Hungary–Germany spread from €27.2/MWh to €14.6/MWh.
[Commercial flow highlights]
The commercial flow data continued to show Hungary as the major regional balancing hub. Exports included approximately Romania → Hungary with a peak of about 787 MW, Hungary → Croatia with a peak of about 571 MW, and Bulgaria → Romania with a peak of about 905 MW. Serbia also remained a major transit market between Bosnia, Montenegro and Hungary-linked corridors.
[Intraday structure and daily peaks]
The hourly curve reflected an early-summer renewable profile across the region. Prices between hours 12–16 stayed heavily depressed as solar production peaked, with daily minima occurring around 15:00 CET across nearly all markets. After 18:00, evening ramps accelerated rapidly, with daily peaks reached between 21:00 and 22:00 CET.
The highest prices recorded included a daily maximum of €181.8/MWh in Hungary, €179.0/MWh in Romania, €171.8/MWh in Slovenia and €172.8/MWh in Croatia. The widening spread from solar hours to evening peaks supported battery storage arbitrage opportunities across the region.
[Fuel and carbon prices; Serbia-specific context]
[Fuel and carbon markets] Fuel markets were generally soft, with CEGH gas at €50.25/MWh (down €0.4/MWh), EUA Dec-26 at €77.07/t (down €1.5/t), and API2 coal Jul-26 at $130/t (down $3.5/t). Despite weaker fuel and carbon pricing, electricity prices rose sharply due to renewable intermittency rather than fuel cost inflation.
[Serbia focus]
[Serbia-specific factors] Serbia’s relative price weakness was supported by net exporting for large parts of the day alongside robust thermal availability. Regional imports into the wider SEE system decreased, reducing external pricing pressure on Serbian pricing levels.
[Serbia-specific factors] Domestic hydro and lignite generation provided relatively low-cost supply compared with gas-dependent neighboring markets during the session. The SEEPEX level kept an approximate €28/MWh discount versus HUPX that could attract additional cross-border trading activity if transmission capacity remained available.
[Trading outlook based on weekend weather and ramp dynamics]
The market structure supported volatility-driven strategies, with solar production expected to recover over the weekend as temperatures rise toward 22–26°C across most SEE markets . At the same time, the pronounced evening ramp continued to create spreads between midday and peak evening hours.
[Dominant themes for traders]
The dominant themes included strong evening scarcity pricing and expanding battery arbitrage opportunities . Continued convergence among Hungary, Romania, Bulgaria and Greece was noted alongside a persistent SEEPEX discount versus Central European benchmarks . Declining gas and carbon prices were highlighted as limiting forward curve upside , while hydro availability remained a principal determinant of regional balance .
