In Week 25 of 2025, electricity market prices rose sharply across all Southeast European (SEE) countries compared to the previous week, with average prices exceeding €80/MWh. This increase was driven by a rise in gas prices—whose futures reached their highest settlement level since April 3—and by higher demand caused by rising temperatures. The week started with average prices near €100/MWh across all SEE countries and concluded with a downward adjustment. All SEE countries experienced double-digit electricity price increases, except for Bulgaria and Italy, which saw single-digit rises. Serbia and Hungary recorded the highest percentage increases in electricity prices, with gains of 15.95% and 14.27%, respectively. Greece followed with a 14.19% rise, while Türkiye and Croatia posted increases of 11.43% and 10.81%. Bulgaria and Italy had the smallest increases, at 8.55% and 4.68%, respectively.
In the third week of June 2025, average spot electricity prices in Central Europe were also higher, hovering around €77/MWh across most major markets. Prices ranged between €52/MWh and €86/MWh. Slovenia emerged as the most expensive market with an average price of €86.33/MWh, representing an 8.20% increase from the previous week. Slovakia followed with an average of €81.84/MWh. On the other end, France registered the lowest price in the region at €51.58/MWh, despite experiencing a dramatic weekly increase of 83.30%. Across Europe, weekly average electricity prices stood near €82/MWh, ranging from €51.58/MWh in France to €118.86/MWh in Italy. In the MIBEL markets, prices surged significantly, with Spain recording a 40.39% rise to €89.54/MWh, and Portugal a 38.23% increase to €90.21/MWh.
In Southern Europe, electricity prices across the SEE countries approached €85/MWh, with the exception of Italy, which exceeded €100/MWh. Prices in the region ranged from €54/MWh to €119/MWh. Türkiye recorded the lowest weekly average at €53.98/MWh, while Hungary followed as the second least expensive SEE market with €83.30/MWh. Italy had the highest average price in Week 25 at €118.86/MWh, marking a 4.68% week-on-week increase. Serbia was the second most expensive market in the region, with an average price of €87.97/MWh. In terms of daily trends, most SEE markets reached peak prices on Monday, June 16, and recorded the lowest prices on Sunday, June 22.
Electricity demand in the SEE region surged during Week 25, increasing by 4.82% compared to the previous week, reaching a total of 16,137.63 GWh. The rise in demand was linked to increased average temperatures and heatwaves affecting parts of the region. Hungary and Türkiye recorded the largest increases in electricity demand, at 8.95% and 7.48%, respectively. Romania and Bulgaria also posted significant growth. Greece, Serbia, and Italy experienced smaller but notable increases, with electricity demand rising by 3.89%, 2.89%, and 2.13%, respectively.
Electricity generation from variable renewables in the SEE region rose by 9.5% compared to Week 24, totaling 3,721.50 GWh. This growth was primarily driven by an increase in solar power output, while wind power generation slightly declined. Wind generation across the region decreased by 0.6% to 1,582.78 GWh, with five out of eight SEE countries—including Serbia, Romania, Bulgaria, and Greece—experiencing declines. Serbia recorded the largest drop in wind output at 35.00%. Meanwhile, solar generation increased by 18.4% week-on-week, reaching 2,138.72 GWh, driven largely by a 42.8% rise in Italy’s solar production, which contributed an additional 299.50 GWh. Romania, Türkiye, and Greece also posted increases of 12.6%, 6.6%, and 3.1%, respectively, while Hungary was the only country to record a decline in solar output, falling by 5.2%.
Hydropower production in the SEE region also rose in Week 25, growing by 2.55% from the previous week to reach 2,580.63 GWh. This increase was driven mainly by higher output in Italy and Serbia, which added 107.73 GWh and 87.45 GWh, respectively. Greece also experienced an 8.8% increase in hydroelectric production. However, other SEE countries saw declines in hydropower generation due to clearer skies. Hungary and Bulgaria posted the steepest declines at 43.44% and 30.51%, followed by Romania with an 11.51% drop.
Thermal power generation in the SEE region jumped by 33.55% in Week 25 compared to the week of June 8, due to rising electricity demand. Total thermal output reached 6,566.33 GWh, supported by increases in both coal- and gas-fired production. Coal-fired output rose by 26.95% to 3,210.61 GWh, while gas-fired generation increased by 38.40% to 3,355.61 GWh. Türkiye’s coal generation rose by 13.61% and its gas-fired output surged by 44.54%. Bulgaria’s coal generation increased by 2.90%, with a 6.31% rise in gas-fired generation. Greece had no coal generation during the week but recorded a 15.60% increase in gas-fired electricity production.
Cross-border electricity trade in the SEE region also rose in Week 25, with net imports increasing by 14.83% compared to Week 24, totaling 1,430.81 GWh. Electricity exports from the SEE region doubled, reaching 198.49 GWh, while imports increased by 21.1%, totaling 1,629.31 GWh. Hungary and Romania experienced significant increases in net imports, at 76.87% and 44.83%, respectively. Conversely, Türkiye and Serbia recorded sharp drops in net electricity imports, declining by 60.58% and 70.83%. Greece and Bulgaria continued their export activity, posting net exports of 55.15 GWh and 143.35 GWh, respectively.
