in the Cooper Basin via the Moomba Adelaide Pipeline System and the SEAGas pipeline from Victoria. In 2011, South Australia generated 18% of its electricity from wind power, and had 51% of the installed capacity of wind generators in Australia. Due to almost universal blackouts within the city during September 2016, the state worked with Tesla to produce the world's largest electricity battery at Hornsdale Power Reserve which has increased that state's electrical security to the extent in which large blackouts are no longer an event. Water The provision of water services is by the government-owned SA Water. Adelaide's water is supplied from its seven reservoirs: Mount Bold, Happy Valley, Myponga, Millbrook, Hope Valley, Little Para and South Para. The yield from these reservoir catchments can be as little as 10% of the city's requirements (90GL per annum) in drought years and about 60% in average years. The remaining demand is met by the pumping of water from the River Murray. A sea-water desalination plant capable of supplying 100GL per annum was built during the 2001–2009 drought; however, it operated at about 8% of its capacity until 2019. In December 2018, the State and Federal Governments agreed to fund a $2m study to determine how the plant could be used to reduce reliance on river water, in an effort to help save the Murray River basin and mouth (including the Coorong) from further ecological damage. Communications AdelaideFree WiFi is a citywide free Wi-Fi network covering most of the inner city areas of Adelaide, primarily the Adelaide CBD and Northern Adelaide precincts. It was officially launched at the Adelaide Central Markets on Tuesday 25 June 2014. It is provided by Internode, with infrastructure provided by outdoor Cisco WiFi N access points attached to the top of lighting poles, as well as inside cafes and businesses across the city. See also Adelaide Hills City of Adelaide Music of Adelaide Port Adelaide Lists Images of Adelaide List of Adelaide obsolete suburb names List of Adelaide parks and gardens List of Adelaide railway stations List of Adelaide suburbs List of films shot in Adelaide List of people from Adelaide List of protected areas in Adelaide List of public art in South Australia List of public transport routes in Adelaide List of South Australian commercial icons List of sporting clubs in Adelaide List of tallest buildings in Adelaide Sister cities of the City of Adelaide