Substation in AbujaNigeria's primary energy consumption was about 108 Mtoe in 2011. Most of the energy comes from traditional biomass and waste, which account for 83% of total primary production. The rest is from fossil fuels (16%) and hydropower (1%). Since independence, Nigeria has tried to develop a domestic nuclear industry for energy. Since 2004, Nigeria has had a Chinese-origin research reactor at Ahmadu Bello University and has sought the support of the International Atomic Energy Agency to develop plans for up to 4,000 MWe of nuclear capacity by 2027 according to the National Program for the Deployment of Nuclear Power for Generation of Electricity. In 2007, President Umaru Yar'Adua urged the country to embrace nuclear power to meet its growing energy needs. In 2017, Nigeria signed the UN treaty on the Prohibition of Nuclear Weapons.