Electricity.Trade analysis of hourly price curves across South-East Europe on 24 February 2026 shows that volatility has shifted from being episodic to structural. Across HUPX, OPCOM, BSP, CROPEX, SEEPEX, BELEN, and ALPEX, evening peak hours recorded sharp price ramps, while off-peak hours exhibited deep troughs, even in markets with modest daily averages.
In Hungary, hourly prices peaked at 177.5 EUR/MWh, while off-peak prices dropped below 50 EUR/MWh. Similar patterns were observed in Slovenia and Croatia, where peak-hour scarcity pricing intensified despite relatively stable daily demand. Electricity.Trade notes that these intraday dynamics are increasingly driven by RES intermittency rather than demand shocks.
Solar output declined sharply in late afternoon hours, while wind generation remained depressed throughout the day. With limited storage and constrained ramping capacity in several SEE systems, gas-fired generation became the marginal source during critical hours, translating fuel volatility directly into power prices.
In Serbia and Montenegro, hourly volatility was less visible in absolute price terms but more pronounced in relative risk. Thin order books and limited intraday liquidity caused abrupt price steps rather than smooth transitions. Electricity.Trade observes that such behavior masks underlying system stress until interconnection constraints bind, at which point prices adjust violently.
Intraday arbitrage opportunities increasingly arise from delayed price transmission between Hungary and under-coupled SEE markets. Traders active on Electricity.Trade desks report that evening peaks in Hungary often precede late adjustments in Serbia and Montenegro, creating narrow but repeatable trading windows.
Electricity.Trade concludes that hourly price curves have become the primary indicator of system tightness in SEE. Daily averages no longer capture risk adequately, and participants relying solely on flat price exposure face increasing volatility and imbalance risk.
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