December 1967. In January 1891, a system in Sydney came on-line, having been authorised by act of Parliament in 1888. George Swinburne was again the engineer, and the system was supplying power to around 200 machines by 1894, which included 149 lifts and 20 dock cranes. The operating company was the Sydney and Suburbs Hydraulic Power Company, later shortened to the Sydney Hydraulic Power Company. Pressure mains were either of or diameter, and at its peak, there were around of mains, covering an area between Pyrmont, Woolloomooloo, and Broadway. In 1919, most of the 2369 lifts in the metropolitan area were hydraulically operated. The pumping station, together with two accumulators, was situated in the Darling Harbour district, and the original steam engines were replaced by three electric motors driving centrifugal pumps in 1952. The scheme remained in private ownership until its demise in 1975, and the pumping station has since been re-used as a tavern. Buenos Aires Ellington's system in Buenos Aires was designed to operate a sewage pumping scheme in the city. Geneva Geneva created a public system in 1879, using a steam engine installed at the Pont de la Machine to pump water from Lake Geneva, which provided drinking water and a pressurized water supply for the city. The water power was used by about a hundred small workshops having Schmid-type water engines installed. The power of the engines was between and the water was supplied at a pressure of . Due to increased demand, a new pumping plant was installed, which started operation in 1886. The pumps were driven by Jonval turbines using the water power of the river Rhône. This structure was called Usine des Forces Motrices and was one of the largest structures for generation and distribution of power at the time of construction. By 1897 a total of 18 turbines had been installed, with a combined rating of 3.3MW. The distribution network used three different pressure levels. The drinking water supply used the lowest pressure, while the intermediate and the high pressure mains served as hydraulic power networks. The intermediate pressure mains operated at and by 1896 some of pipework had been installed. It was used for powering 130 Schmid type water engines with a gross power of . The high pressure network had an operating pressure of bar and had a total length of . It was used to power 207 turbines and