Bulgaria possesses a substantial amount of lignite reserves (approximately 2.2 Gt in 2016), but these reserves are quite difficult to extract due to their location under villages and cities. Despite this fact, Bulgaria relies on ligite for nearly half of its power mix. Small reserves of coal, oil and natural gas are also present. Estimates show a potential of renewable energy sources of up to 4.5 Mtoe.
Main energy sources for power generation are coal, hydropower and nuclear. Renewable energy electricity also peaked in 2011 due to the achievement of the national renewable energy target of 16% (in line with the EU Renewable Energy Directive). Bulgaria has two operational 930 MW net reactors at the Kozloduy nuclear plant and in November 2017, the Bulgarian Nuclear Regulatory Agency (BNRA) renewed the operational license for Kozloduy-5 until 2027.
In 2018, coal contributed the highest (40%) to power generation in the Republic of Bulgaria, followed by nuclear (35%) and hydropower (12%).
Calculations: Austrian Energy Agency
Last update: 12 2020