section_path: Economy/Infrastructure
section_name: Infrastructure
paragraph_text: Infrastructure
  
  Telephone services are widely available, and a central digital trunk line connects most regions. Vivacom (BTC) serves more than 90% of fixed lines and is one of the three operators providing mobile services, along with A1 and Telenor. Internet penetration stood at 69.2% of the population aged 16–74 and 78.9% of households in 2020.
  
  Bulgaria's strategic geographic location and well-developed energy sector make it a key European energy centre despite its lack of significant fossil fuel deposits. Thermal power plants generate 48.9% of electricity, followed by nuclear power from the Kozloduy reactors (34.8%) and renewable sources (16.3%). Equipment for a second nuclear power station at Belene has been acquired, but the fate of the project remains uncertain. Installed capacity amounts to 12,668 MW, allowing Bulgaria to exceed domestic demand and export energy.
  
  The national road network has a total length of 19,512 kilometres (12,124 mi), of which 19,235 kilometres (11,952 mi) are paved. Railroads are a major mode of freight transportation, although highways carry a progressively larger share of freight. Bulgaria has 6,238 kilometres (3,876 mi) of railway track, with rail links available to Romania, Turkey, Greece, and Serbia, and express trains serving direct routes to Kyiv, Minsk, Moscow and Saint Petersburg. Sofia is the country's air travel hub, while Varna and Burgas are the principal maritime trade ports.