Variable renewable generation increased across Southeast Europe in Week 26, but the headline improvement hides a more complicated market reality. Regional VRE output rose by 11.7% to 4.27 TWh, almost entirely because wind generation increased by 32.4%, adding 457 GWh. Solar generation was broadly unchanged, slipping 0.4%. The region received renewable support, but not in a uniform way and not always in the markets facing the sharpest pressure.
Türkiye was the main contributor to the regional improvement. Its wind output rose 43.8%, helping total variable renewable generation increase by 36.9%. Greece also benefited from a strong wind recovery, with wind generation up 57.5%, more than offsetting a 5.6% decline in solar. Hungary and Bulgaria benefited more from solar gains, while Romania’s renewable output was broadly stable.
The weakness came in important places. Croatia saw variable renewable generation fall by 25.4% because of weaker wind conditions. Italy also recorded lower renewable output, with wind down 10.1% and solar down 5.2%. These movements mattered because Croatia and Italy were among the higher-price markets of the week, averaging €139.09/MWh and €144.67/MWh, respectively. Renewable growth at regional level did not prevent local scarcity where output weakened.
This is one of the defining features of SEE renewable integration. Regional averages can suggest sufficient renewable availability, while local systems still face tightness. Wind conditions can improve strongly in Greece and Türkiye while weakening in Croatia and Italy. Solar can perform in one market and disappoint in another. Traders and buyers therefore need country-level and hourly renewable forecasting, not just regional generation totals.
The distinction between wind and solar is also becoming more important. Solar helps during daylight demand, but it does not solve the evening ramp unless paired with storage. Wind can be more valuable during evening and night hours, but its volatility creates exposure for smaller systems. Croatia’s Week 26 profile shows this risk clearly: weaker wind contributed to price pressure, despite hydro recovery.
For project developers, the data reinforce the need to think beyond installed capacity. Market value depends on production timing, correlation with regional scarcity, grid location and balancing exposure. A wind farm producing into evening scarcity can capture materially different economics from a solar plant concentrated in lower-price midday hours. A hybrid project with storage can manage both.
Week 26 showed that renewables are already shaping SEE price formation, but not always by lowering prices. Their geographic and hourly variability is becoming one of the main sources of market differentiation.
Elevated by Virtu.Energy
