Electrification
In 1900 a further act of parliament gave the council the power to electrify its system. On 15 May 1903 the first electrified section from Westminster to Tooting was opened by The Prince and Princess of Wales who rode the route in a specially decorated tramcar, and paid their fares with halfpenny coins minted for the occasion. The last horse tram ran on the 30 April 1915. Much of the system used a conduit system of electrical current, as the metropolitan boroughs had the power of veto on the installation of overhead wires.
Read more about this topic: London County Council Tramways