Bulgaria’s largest coal-based power plant, Maritsa East 2, is preparing to diversify its fuel mix by introducing biomass alongside lignite. Starting at the end of February, the plant will pilot the use of wood material in combination with coal, marking a significant operational shift for the complex.
The pilot phase will begin cautiously, with biomass representing around 5% of the fuel blend. If technical and economic outcomes prove successful, the share of wood input could gradually increase to as much as 30%. At that stage, plant officials estimate that generation costs could drop by up to 50 euros/MWh, potentially boosting the facility’s market position.
Lower production expenses are expected to not only enhance competitiveness but also encourage greater use of locally mined lignite. By reducing the overall cost structure, management aims to strengthen the long-term viability of the wider Maritsa East energy complex, which remains central to Bulgaria’s energy system.
Energy Minister Zhecho Stankov stated that five generating units are currently online at the plant. With the planned integration of wood chips, authorities are targeting full operation of all eight units within a year, provided the transition progresses smoothly.
To implement this adjustment, the plant must acquire specialized equipment capable of handling and processing biomass. Funding options include support from the Just Transition Fund, which has earmarked 88 million euros for coal-dependent regions, as well as potential loan financing.
