price formation

Battery operators across Southeast Europe are increasingly buying solar-heavy midday electricity and shifting it for sale in later hours, with Bulgaria leading the trend. Serbia has begun recording negative day-ahead prices, which can provide a variable source of low-cost electricity for storage.

Bulgaria’s storage fleet is estimated at more than 6.2 GW of power capacity and 19 GWh of energy capacity, enough to reshape regional day-ahead prices. By shifting electricity between low- and high-price hours, batteries support exports during scarcity periods while compressing the spreads available to storage projects.

Battery operators across Southeast Europe are increasingly buying solar-heavy midday electricity to sell later, with Bulgaria leading the trend. Serbia has begun recording negative day-ahead prices, creating a potential but variable source of low-cost power for storage.

Week 26 confirmed that thermal generation remains the central price-setting layer in Southeast Europe during summer stress periods. Regional thermal output rose by 24.7% to 6.52 TWh,...

The integration of South-East Europe into the European electricity market has progressed significantly, particularly with the establishment of frameworks like the Single Day-Ahead Coupling...