The electricity sector enjoys several tax exemptions: import tax exemptions for fuels used by ENEE and other power companies for electricity generation, import and sales taxes on equipment and materials for rural electrification projects, import taxes on equipment and materials for power plants using renewable energy sources, and sales tax on electricity sales. According to the World Bank, the total average annual tax exemptions are estimated at about US$108 million, mostly fuel taxes (US$64.8 million) and sales taxes on electricity consumption (US$37.8 million).