The 1901 act prescribed four power stations to be built by the company, these were at Mirfield, Methley, Wath and Bingley. the
Central Electricity Board (CEB) was established in 1926. The CEB identified high efficiency ‘selected’ power stations that would supply electricity most effectively; Thornhill and Barugh were designated as selected stations.
Thornhill power station Instead of Mirfield a site at Thornhill 2 miles (3 km) to the east was chosen.
Thornhill power station was commissioned as a 4.5 MW station in 1902. It was extended in 1915, 1925 and 1932–37 when it had a capacity of 75 MW. The station was further extended by the
British Electricity Authority in 1950–54 and operated until 1982. , the site was occupied by a gas turbine power plant.
Ferrybridge power station Ferrybridge power station, later known as Ferrybridge A, was constructed in 1926–27. It was closed in 1976. Following nationalisation Ferrybridge B (1957–92) and Ferrybridge C (1966–2016) were subsequently constructed. The site is now (2020) occupied by Ferrybridge Multifuel power station.
Mexborough power station The company had planned to build
Mexborough power station from 1939 but this was delayed by the war and construction started in 1943. It was commissioned in 1945 and had a capacity of 120 MW. It closed in 1981.
Barugh power station Barugh power station near Barnsley () was commissioned in 1913. It was fuelled by gas from the coke ovens of Old Silkstone colliery. This was used to raise steam at a rate of 150,000 lb/h (18.9 kg/s) which was used to drive two 2.0 MW and two 5.0 MW steam turbines coupled to generators giving a total output of 14 MW AC. Condensing water was circulated through
cooling ponds adjacent to the station. Operating data for the station just prior to nationalisation is given in the table. The steam set was shut down in 1958. Following nationalisation Diesel engines were installed by the
British Electricity Authority in December 1954. There were two 2.0 MW Mirlees, Bickerton and Day engines, the alternators operated at 11 kV. Operating data for the station is shown in the table. Barugh power station was decommissioned in 1963. The electricity substation at Barugh is still (2020) operational and has connections for 132 kV and 66 kV lines. == Electricity distribution ==