Bulgaria’s decision to separate Maritsa East Mines and Maritsa East 2 Thermal Power Plant from Bulgarian Energy Holding shows how coal restructuring has moved from climate-policy debate into fiscal and financing risk. The reform is required under Bulgaria’s Recovery and Resilience Plan, but delays have put more than €1bn of funding at risk, including money linked to territorial just transition plans.
Energy Minister Iva Petrova has been tasked with developing the reform concept and coordinating it with parliament, where earlier decisions have complicated restructuring of BEH. The planned model would transfer Maritsa East Mines and Maritsa East 2 into a new state-owned enterprise. That is not a full coal-exit strategy, but it is a governance step designed to separate legacy coal assets from the wider energy holding structure.
The problem for Bulgaria is timing. The country remains heavily exposed to coal regions, labour sensitivities and political resistance. Maritsa East is not only a power-generation complex; it is an employment and regional-development system. Any restructuring creates social risk. Yet delaying reform creates financial risk, because EU funds tied to transition commitments are no longer passive entitlements.
The contrast with Bulgaria’s battery-storage expansion is striking. On one side, the country is preparing up to 3 GWh of battery capacity by the end of 2026, with projects such as Nova Zagora, Knizhnovik and Sermatec installations supporting renewable integration and grid stability. On the other, coal-sector governance remains politically difficult.
This duality is common across SEE. New energy assets can move quickly when investors, technology suppliers and market incentives align. Legacy coal assets move slowly because they involve labour, politics, tariffs, state-owned enterprises and regional identity. Bulgaria’s challenge is to connect the two stories: coal-region transition must be credible enough to unlock EU finance, while storage and renewables must grow fast enough to replace system value.
For investors, the lesson is that energy transition in SEE is not only about building wind, solar and batteries. It is also about restructuring incumbents, managing social costs and preserving system reliability. Bulgaria’s coal reform will be watched because it shows whether EU funding conditionality can force governance change in a politically sensitive power system.
