The civil war has severely impacted the energy sector in Yemen, due to several factors including damage from attacks, lack of funding for maintenance, and fuel shortages. As of 2018, 43% of Sanaa's energy assets were completely destroyed, while another 38% had suffered partial damage; in addition, 81% of the facilities were not functioning. As a result, the public power supply in Sanaa has become almost nonexistent: of the daily 500 MW electricity demand in the city, the city receives 40 MW. The public electricity supply is now mostly or entirely supplied by the Hizyaz station, whose capacity has been reduced to 7 MW. Public grid access covers around 2% of the population, mostly in nearby neighborhoods, and it is expensive for consumers. Private services using their own generators also sell electricity to customers; they cover another 2.8% and cost about as much as the public supply. The largest share of electrical supply in Sanaa came from privately-owned solar panels and diesel generators, which together covered 30% of the population. Solar power rapidly gained popularity in Yemen in 2015, and in 2016 it became the leading source of electricity in the country.