Portishead Power Station refers to a series of two coal and oil-fired power stations which operated in the dock area of Portishead in Somerset, South West England, between 1929 and 1982. The original coal-fired Portishead power station was built by Bristol Corporation's Electricity Department and started generating in 1929. It was later expanded, and renamed Portishead A Power Station after Portishead B Power Station opened in the early 1950s. The newer station had one-third of its boilers oil-fired and two-thirds coal-fired. Both power stations were later converted to fully oil-fired operation.