section_path: Economy/Infrastructure
section_name: Infrastructure
paragraph_text: Infrastructure
  
  Turkey is the 16th largest electricity producer in the world. Turkey's energy generation capacity increased significantly, with electricity generation from renewable sources tripling in the past decade. It produced 43.8% of its electricity from such sources in 2019. Turkey is also the fourth-largest producer of geothermal power in the world. Turkey's first nuclear power station, Akkuyu, will increase diversification of its energy mix. When it comes to total final consumption, fossil fuels still play a large role, accounting for 73%. A major reason of Turkey's greenhouse gas emissions is the large proportion of coal in the energy system. As of 2017, while the government had invested in low carbon energy transition, fossil fuels were still subsidized. By 2053, Turkey aims to have net zero emissions.
  
  Turkey has made security of its energy supply a top priority, given its heavy reliance on gas and oil imports. Turkey's main energy supply sources are Russia, West Asia, and Central Asia. Gas production began in 2023 in the recently discovered Sakarya gas field. When fully operational, it will supply about 30% of the natural gas needed domestically. Turkey aims to become a hub for regional energy transportation. Several oil and gas pipelines span the country, including the Blue Stream, TurkStream, and Baku-Tbilisi-Ceyhan pipelines.
  
  As of 2023, Turkey has 3,726 kilometers of controlled-access highways and 29,373 kilometers of divided highways. Multiple bridges and tunnels connect Asian and European sides of Turkey; the Çanakkale 1915 Bridge on the Dardanelles strait is the longest suspension bridge in the world. Marmaray and Eurasia tunnels under the Bosporus connect both sides of Istanbul. The Osman Gazi Bridge connects the northern and southern shores of the Gulf of İzmit.
  
  Turkish State Railways operates both conventional and high speed trains, with the government expanding both. High-speed rail lines include the Ankara-Istanbul, Ankara-Konya, and Ankara-Sivas routes. Istanbul Metro is the largest subway network in the country with around 704 million annual ridership in 2019. There are 115 airports as of 2024. Istanbul Airport is one of the top 10 busiest airports in the world. Turkey aims to become a transportation hub. It is part of various routes that connect Asia and Europe, including the Middle Corridor. In 2024, Turkey, Iraq, UAE, and Qatar signed an agreement to link Iraqi port facilities to Turkey via road and rail connections.