Koeberg contains two pressurised water reactors based on a design by Framatome of France. Framatome has a 51% shareholding in local South African company Lesedi Nuclear Services. Koeberg supplies power to the national grid so that over-capacity can be redistributed to the rest of the country on an as-needed basis. Fuel stock used within the reactor is enriched uranium dioxide pellets containing gadolinium, contained in fuel rods. Koeberg is rated at 1,860 MW, its average annual production is 13,668 GWh and it has two large turbine generators (2 × 970 MW).