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.
Depleted European gas inventories could force buyers to compete with Asia for LNG during the 2027 refill season, keeping summer prices and procurement costs elevated. Stocks below roughly 20% at the end of March would increase the risk.
High gas costs can raise Southeast European electricity prices when weak hydro, low wind or thermal outages leave gas-fired plants setting the marginal price. In tight hours, gas-fired generation can support wholesale prices above €170-220/MWh.
Gas-fired electricity generation across the Southeast European markets covered fell 13.60% in the week ending 20 September, declining at more than twice the rate...
Southeast European electricity prices could ease in Q4 2026 and Q1 2027 if nuclear capacity returns and hydro inflows improve. Gas costs and transmission constraints are expected to sustain premiums during tight periods.
Cernavodă Unit 1 is scheduled to resynchronise on 6 November after more than three months offline. Its availability, alongside other reactor restarts and outages, will shape winter import needs and power prices across Southeast Europe.
Drought is reducing hydroelectric output and constraining nuclear generation across the Balkans, increasing exposure to electricity imports. The pressure highlights the role of diversified generation, storage and interconnection.
Western Balkan electricity trade with the European Union recovered from the second quarter but remained below year-earlier levels. Wider price spreads, weaker convergence and CBAM costs are complicating cross-border sales.
Romania imported electricity for 21 of 24 hours on 3 November despite renewables supplying around two-thirds of generation. Reactor restart prospects and the cost and timing of grid connections will shape supply and new project economics.