Eskom uses various technologies to generate electricity, the combination of which is called the "plant mix". The biggest portion of Eskom's plant mix consists of coal-fired load power stations. These power stations use coal as their energy source and operate 24 hours a day to meet the demand of electricity. As Africa's only nuclear power station, Koeberg is also a base load station with an installed capacity of 1 930 MW of power. Koeberg's total net output is 1 800 MW.