Wholesale electricity prices in Southeast Europe are moving toward the lower end of the European market as new renewable capacity and battery storage reshape regional supply. In recent trading, Bulgaria and Greece were at around €185–193/MWh. This compares with roughly €225–270/MWh across much of Central Europe.
The Balkan price level has also been higher than in Spain and Portugal, where prices were around €178–184/MWh. Nordic markets continued to sit at the lowest end of the European price range. The relative positioning indicates a narrowing gap between parts of Southeast Europe and the lower-priced segments of the broader market.
Greece and Bulgaria show the clearest shift
The change is most visible in Greece and Bulgaria. Greece has rapidly expanded wind and solar capacity. Bulgaria is pairing solar development with one of Southeast Europe’s fastest-growing battery storage portfolios.
As renewable output increases during daytime hours, storage becomes more relevant for balancing intraday price patterns. Low-priced renewable production during the day is linked to deeper intraday price swings. Batteries can absorb surplus solar power, reduce curtailment, and return electricity to the market during evening demand peaks.
Evening peaks are when gas-fired generation and imported power often set higher prices. By shifting electricity from periods of surplus to periods of higher demand, batteries can affect how often higher-priced supply is needed. This role aligns with the observed movement of Southeast European prices toward the lower end of Europe.
Cross-border limits keep convergence uneven
Despite the narrowing gap, regional price convergence remains constrained by limited cross-border capacity. National market structures also remain fragmented across the region. As a result, large price differences can persist between neighbouring exchanges even when lower-cost electricity is available elsewhere in Southeast Europe.
Further progress depends on faster battery deployment in Greece and additional wind development in Bulgaria. It also requires greater renewable and storage investment across the Western Balkans. Stronger market coupling and grid reinforcement would support more efficient circulation of cheaper generation across borders.
Southeast Europe is no longer uniformly among Europe’s most expensive electricity regions. Maintaining that improvement depends on whether grids, storage, and cross-border trading keep pace with new supply additions. The next phase therefore hinges on infrastructure and flexibility alongside renewable capacity growth.
