Internet cafes are popular among Sanaa residents, many of whom cannot afford the high cost of subscription fees and purchasing necessary equipment. They are especially popular with university students, who use publicly-available information on the internet to supplement their studies. The first all-female internet cafe in Sanaa opened in 2013. As of 2017, the city of Sanaa had 407 internet cafes, which was almost a third of the total in Yemen. A survey of 45 internet cafes in 2018 reported that 38 were fully or partially operating, while 7 were permanently closed. One of them was operating on solar power, which provided 18 hours of electricity per day.