Serbia’s forecast power balance on 15 October required about 1,027 MW of net imports, while the SEEPEX price reached 368.6 €/MWh at hour 20. Battery storage could reduce exposure to such expensive deficit hours, but would not remove the need for energy imports.
EU electricity importers must declare embedded emissions and surrender CBAM certificates for power imported in 2026 by 30 September 2027. Certificate purchases begin in February 2027, making emissions evidence and the allocation of costs relevant to electricity contracts.
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.
Expanding LNG access and pipeline connections are making Southeast European gas prices more responsive to transport costs and supply conditions. This is increasing the importance of spreads against the Dutch TTF benchmark.
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.