Two daily price regimes across key Southeast European markets
Southeast Europe’s electricity market is increasingly split into two daily price regimes, with a relatively well-supplied solar-driven midday period and a tighter evening market after photovoltaic output declines. The Week 34 hourly price chart illustrates the pattern across the region’s main markets. Prices fall from morning levels into the middle of the day before rising rapidly from late afternoon. Several markets approach or exceed €200/MWh around the evening peak, while midday values remain substantially lower.
The regional pattern appears broadly in parallel across Greece, Italy, Bulgaria, Romania, Hungary, Serbia and Croatia. The chart on page 14 shows the same overall shape across those countries. This structure is linked to changes in how different generation types contribute across the day.
Renewables availability shifts balancing needs into the evening
Solar generation can be abundant during daylight hours but provides no support after sunset. In Week 34, wind availability was also weaker across the region, falling 26.4% compared with Week 30. With both solar and wind less supportive later in the day, hydro, thermal generation and imports take on a larger share of the evening balancing requirement.
The resulting market outcome is an expanding time spread between low-value electricity and high-value electricity during the evening ramp. This change affects how value is distributed over intraday trading hours rather than only over longer averaging periods.
Implications for generators, storage and cross-border flows
For generators, annual or weekly average prices increasingly provide an incomplete picture of revenues. A producer able to concentrate output into the evening can capture substantially greater value than a producer supplying the same volume during solar-heavy hours. The evening ramp therefore becomes a more significant driver of trading outcomes.
For storage, electricity can potentially be charged during relatively low-priced midday periods and discharged during the evening ramp. The steeper the intraday curve, the greater the theoretical gross spread available to a battery before charging losses, market fees and other costs are accounted for.
Cross-border capacity also gains value during these hours. A neighbouring system with surplus hydro, wind or thermal generation can command significantly greater value when the importing market enters the evening ramp.
Week 34 chart points to a structural shift in regional trading windows
The Week 34 chart indicates a structural change in Southeast European trading patterns. The key market question becomes less about which country is cheapest or most expensive over the week and more about which system has flexible electricity available during a narrow set of high-value hours.
As that shift develops, intraday forecasting, storage optimisation and cross-border capacity are likely to become increasingly central to regional trading strategies.
