Nuclear power in Ukraine year 2030, which would almost double the current amount of nuclear power capacity. Ukraine's power sector is the twelfth-largest in the world in terms of installed capacity, with 54 gigawatts (GW). Renewable energy still plays a very modest role in electrical output; in 2005 energy production was met by the following sources: nuclear (47 percent), thermal (45 percent), hydroelectric and other (8 percent). The Chernobyl disaster was a nuclear accident that occurred on 26 April 1986 at the Chernobyl Nuclear Power Plant in Ukraine. An explosion and fire released large quantities of radioactive contamination into the atmosphere, which spread over
South Ukraine Nuclear Power Plant following major upgrade work, unit 1 was given a 10-year license extension, which will take it beyond its original 30-year design lifetime. Similar extensions are planned for units 2 and 3, licensed until 2015 and 2019, respectively. The main supplier of fuel for nuclear power plants in Ukraine has been TVEL, with whom NNEGC signed a contract for the supply of nuclear fuel for Ukrainian WMR in 1997 until 2010. Under a US-Ukrainian initiative to reduce Ukraine's dependency on Russia for fuel, tied to the dismantling of its nuclear weapon arsenal, Energoatom had been using reactor core of unit 3