1. Zaporizhzhia is the largest of Ukraine's four nuclear power plants, which together provide about half the country's electricity.
2. This is the first time war has broken out in a country with such a large and established nuclear power programme, the International Atomic Energy Agency says.
3.Zaporizhzhia's six units each have a net capacity of 950 Megawatts electric, or a total of 5.7 Gigawatts electric, according to an IAEA database.