[3] The Corporation built a larger power station in 1903-4 on reclaimed land near the western end of Southampton Railway Tunnel.

[1] The siding was worked by an 0-4-0 locomotive built by Southampton Corporation Tramways workshops powered by electric overhead wires.

[1] In 1925 American hard-shelled clams were introduced into the River Test, in an area warmed by cooling water discharge of the power station.

[5] By the 1950s the plant at Southampton power station comprised:[6] Cooling was by seawater.

[7] After World War 2 the supply of coal switched to road transport and the siding ceased to be used.

[1] The Southampton Corporation Tramways built locomotive was scrapped in 1953 with the remaining two meeting the same fate in 1960.