The power markets in Southeast Europe have exhibited notable divergence as of April 8, with Serbia and Hungary emerging as outliers amidst a generally softer regional pricing environment. This shift is attributed to localized market tightness and a reduction in cross-border electricity inflows, contrasting sharply with the downward trends observed in Romania, Bulgaria, and Greece, where improved renewable energy output has contributed to a more balanced system.
Day-ahead market prices reveal this fragmentation: Hungary’s HUPX recorded a clearing price of 94.42 €/MWh, reflecting an increase of 3.1 €/MWh from the previous day. Meanwhile, Serbia’s SEEPEX surged to 97.39 €/MWh, marking a significant rise of 7.0 €/MWh and positioning it as the highest-priced market in the region. In stark contrast, Romania (80.63 €/MWh), Bulgaria (80.41 €/MWh), and Greece (80.41 €/MWh) saw declines ranging from 4 to 7 €/MWh, consolidating their status within a lower-priced southeastern cluster.
Despite the overall improvement in regional supply dynamics—total consumption across the SEE and Hungary system climbed to 31,058 MW, an increase of 1,626 MW—generation levels rose even more substantially to reach 28,571 MW, up by 2,148 MW. The surge in generation was primarily driven by solar power (+728 MW to 4,997 MW), hydro (+608 MW to 7,459 MW), and gas (+630 MW to 3,116 MW), compensating for a decline in coal production.
This shift has allowed the region to transition from a net import position toward near balance; net imports fell sharply to -160 MW—a day-on-day improvement of 1,021 MW—indicating reduced reliance on external supply sources.
However, the price strength observed in Hungary and Serbia is not solely due to scarcity but rather reflects significant changes in cross-border flow dynamics. Import levels into the Hungary-Slovenia system from Austria and Slovakia dropped to 1,955 MW—down by 478 MW—while imports from Italy into the SEE region also decreased. Concurrently, the spread between Hungarian and German prices widened to 7.45 €/MWh, up by 6 €/MWh, underscoring Hungary’s premium compared to Western European markets.
This tightening of core inflows has effectively isolated the pricing dynamics between Hungary and Serbia from those of neighboring markets. In Serbia specifically, prices on SEEPEX were nearly 17 €/MWh higher than those in Romania and Bulgaria—a reflection of localized balancing issues and increased demand during evening peak hours rather than broad system-wide constraints. The market exhibited deep midday price softness followed by sharp increases during evening hours due to variations in wind generation and dominant solar output throughout the day.
Forecasts for renewable energy generation align with this analysis: total renewable energy sources (RES) generation reached 10,179 MW—including solar at 4,320 MW and wind at 3,394 MW—with solar output increasing while wind production declined. This combination typically leads to heightened intra-day price volatility within markets that possess limited storage or interconnection flexibility.
Looking ahead at forward markets indicates a cautious outlook; Hungarian baseload forwards have seen slight increases with Week 16 priced at 116.50 €/MWh and May-26 at 100.50 €/MWh—supported by firmer gas prices (CEGH gas rose to 53.88 €/MWh) alongside stable carbon pricing (EUA held at 71.51 €/t). However, forward spreads against Germany have softened slightly across the curve suggesting that current tightness may not be sustainable if renewable generation continues its upward trend alongside normalized interconnection flows.
Structural developments across the broader region are reshaping market behaviors significantly; Bulgaria’s partial reactivation of the Chaira pumped-storage plant combined with Greece’s addition of approximately 2.13 GW of solar capacity and Hungary’s ambitious expansion plans for battery storage (targeting between 2.4–2.5 GW) indicate a shift towards systems increasingly reliant on renewable intermittency and enhanced balancing capabilities.
In summary, while regional trading remains focused on spreads rather than outright price movements—evidenced by Romania-Bulgaria-Greece corridor acting as a soft floor around €80/MWh—Serbia continues to emerge as the tightest node within the Balkan power system while Hungary retains its pivotal role as a pricing benchmark between Western Europe and Southeast Europe.
