The evening peak has become the most critical pricing window in Southeast European day-ahead electricity markets, as stronger demand, weaker renewable generation and greater reliance on thermal power continue to support wholesale prices after solar output declines.
Week 27 market data highlighted the 19:00–22:00 period as the region’s primary stress window. As solar generation rapidly fades during the evening while cooling demand remains elevated, electricity systems become increasingly dependent on dispatchable thermal generation and cross-border imports, creating favourable conditions for stronger peak prices.
The broader market fundamentals reinforce this trend. Electricity demand across Southeast Europe increased 2.1% to 18.80 TWh during the week, while variable renewable generation declined 3.3% and hydropower output fell 3.4%. The combination of stronger consumption and weaker renewable production tightened regional supply and increased the need for conventional generation.
To compensate for lower renewable output, thermal generation rose 6.5% to 6.86 TWh. Within the thermal mix, lignite and coal-fired generation increased 11.6%, while gas-fired output climbed 3.3%. The greater dependence on thermal generation also increases the influence of fuel costs and plant availability on electricity prices, particularly during evening peak demand.
The strongest pricing pressure remains concentrated in the region’s highest-priced markets. Romania recorded an average day-ahead price of EUR 164.31/MWh, followed by Hungary at EUR 162.04/MWh, Croatia at EUR 142.57/MWh and Serbia at EUR 139.93/MWh. These markets are expected to remain the primary focus for traders targeting peak and super-peak products, where price volatility is typically greatest.
Cross-border electricity flows further reinforce the evening peak outlook. Hungary, Romania and Serbia all increased their net imports during Week 27, indicating greater dependence on regional electricity supplies during periods of high demand. This leaves evening prices increasingly sensitive to interconnector availability and supply conditions in neighbouring markets.
For market participants, monitoring baseload prices alone is no longer sufficient. The more important indicator is whether evening peak prices continue to strengthen relative to daily averages. If wind generation remains subdued and natural gas prices stay elevated, peak-to-baseload spreads are likely to remain well supported across Southeast Europe.
Market outlook: The 19:00–22:00 evening peak window is expected to remain the region’s most important trading opportunity. Unless renewable generation improves significantly or demand eases, Romania, Hungary, Serbia and Croatia are likely to remain the key markets where tightening supply conditions continue to support elevated peak electricity prices.