Peterhead Power Station
| Peterhead Power Station | |
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Peterhead power station as seen from Boddam.
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 Location of Peterhead Power Station in Scotland
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| Country | Scotland |
| Location | Aberdeenshire |
| Coordinates | 57°28′38″N 1°47′20″W / 57.477213°N 1.788879°WCoordinates: 57°28′38″N 1°47′20″W / 57.477213°N 1.788879°W |
| Operator(s) | SSE plc |
| Thermal power station | |
| Primary fuel | Natural gas-fired (originally Oil-fired) |
| Combined cycle? | Yes |
| grid reference NK127430 | |
Peterhead power station is a multi unit station owned and operated by SSE plc near Boddam and the A90, just south of Peterhead, in Aberdeenshire in the north east of Scotland.
The station was originally planned as a 1320 MWe oil-fired power station consisting of two 676 MWe generating units. Construction began in May 1973, with one unit opening in 1980, and the other in 1982. The original owner was the North of Scotland Hydro-Electric Board. The proximity of the station to St Fergus gas terminal meant, however, that the boilers were converted to burn gas as well as oil. When it opened, it burnt waste gas from the Brent oilfield, prior to this gas being refined at the Mossmorran refinery near Cowdenbeath, and the price of oil was uneconomic to use. By 1984, the price of oil made it economic to burn.
In the early 1990s the owners (Scottish Hydro Electric) entered into a contract with BP to burn sour gas from the Miller Field. In order to satisfy the terms of this contract two further units were built (two 120 MW Open Cycle gas turbine) with a primary function to burn Miller gas when the two main units were unavailable.
These Gas Turbine have now been decommissioned and the plant sold to a firm in Africa where they will be used in a de-salination plant.
Gas was brought into a new gas reception facility called the "PGRF". Due to the nature of the gas all carbon steel piping had to comply with NACE Specification MR 01 75 (90) which required limits on sulphur and carbon content.
The gas supply line from the PGRF was installed by Motherwell Bridge Projects from 1990 to 1991. The piping system consisted of carbon steel piping ranging from 30" to 20" fully welded and tested producing a high integrity system. The system feeds both units terminating on the air preheater roof where the main boiler feeds are controlled through a gas header. The header consists of three 14" and one 10" valve.
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