Blyth Power Station refers to a pair of now demolished coal-fired power stations, which were located on the Northumberland coast in North East England. The two stations were built alongside each other on a site near Cambois in Northumberland, on the northern bank of the River Blyth, between its tidal estuary and the North Sea. The stations took their name from the town of Blyth on the opposite bank of the estuary. Blyth A Power Station was built and opened first but had a smaller generating capacity than its sister station, Blyth B Power Station, which was built to its west four years later. The power stations' four large chimneys were a landmark of the Northumberland skyline for over 40 years; the A Station's two chimneys each stood at 140 metres (460 ft); the B Station's two chimneys were taller, at 170 metres (560 ft) each. Construction of the B Station began shortly after the A station was completed. The stations were built during a period in which there were great advances in power station technology, and in the scale of production, which led to them having a variety of intermediate generator set sizes along with a mix of design styles.