In recent decades, Bulgaria has established itself as an energy leader in the Balkan region. Traditionally, the Bulgarian energy sector is based on conventional energy sources, like coal, nuclear energy, and hydroelectric power plants. In recent years, the role of renewable energy sources has become increasingly established in the electricity mix, which, together with the undeniable benefits, leads to several challenges for the balancing of the electricity system.

The main challenges facing strategic energy planning in Bulgaria are related to the implementation of energy transition policies. The main priorities are related to the transition to low-emission sources as follows:

• Construction of new nuclear builds to improve the country's energy security.
• Increasing the capacity of Renewable Energy Sources (RES).
• The integration of grid capacity transmission capacity with neighboring countries.
• Development of hydropower plants.

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