Barry Power Station
Encyclopedia
Barry Power Station is a 230MWe gas-fired power station on Sully Moors Road in Sully
in the Vale of Glamorgan
, Wales
. It is eight miles west of Cardiff
and is next to a large Ineos
Vinyls chemicals works that makes PVC
and a Hexion Chemicals
plant.
, but trading as AES Barry Ltd. It was bought by Centrica
on July 24 2003 for £39.7m. AES sold the plant because of the low price of electricity at that time.
-type power station. There is one 160 MWe Siemens
V94.2 gas turbine
(built by Ansaldo Energia
in Genoa
and now called the SGT5-2000E) that feeds exhaust gas at 544C to a heat recovery steam generator. Steam from this enters a 75MWe steam turbine
running, like the gas turbine, at 3000 rpm
. Exhaust steam is passed through an air-cooled condenser and returned to the system as de-aerated
feedwater
for the HRSG. It connects to the Western Power Distribution
section of the National Grid via a substation
at 132kV. The generator
on the gas turbine is rated at 180MVA
and has a terminal voltage of 15kV; the steam turbine's is 11kV.
Until 2000, it ran as a baseload station
. The plant is 44% thermally efficient
. The chimney is 60m high.
Sully, Vale of Glamorgan
Sully is a village in the Vale of Glamorgan, Wales lying on the northern coast of the Bristol Channel, midway between the towns of Penarth and Barry and 7 miles southwest of the Welsh capital city of Cardiff.-Medieval Sully:...
in the Vale of Glamorgan
Vale of Glamorgan
The Vale of Glamorgan is a county borough in Wales; an exceptionally rich agricultural area, it lies in the southern part of Glamorgan, South Wales...
, Wales
Wales
Wales is a country that is part of the United Kingdom and the island of Great Britain, bordered by England to its east and the Atlantic Ocean and Irish Sea to its west. It has a population of three million, and a total area of 20,779 km²...
. It is eight miles west of Cardiff
Cardiff
Cardiff is the capital, largest city and most populous county of Wales and the 10th largest city in the United Kingdom. The city is Wales' chief commercial centre, the base for most national cultural and sporting institutions, the Welsh national media, and the seat of the National Assembly for...
and is next to a large Ineos
Ineos
INEOS Group Limited is a privately owned multinational chemicals company headquartered in Lausanne, Switzerland and with its registered office in Lyndhurst, United Kingdom...
Vinyls chemicals works that makes PVC
Polyvinyl chloride
Polyvinyl chloride, commonly abbreviated PVC, is a thermoplastic polymer. It is a vinyl polymer constructed of repeating vinyl groups having one hydrogen replaced by chloride. Polyvinyl chloride is the third most widely produced plastic, after polyethylene and polypropylene. PVC is widely used in...
and a Hexion Chemicals
Hexion Specialty Chemicals
Hexion Specialty Chemicals, Inc. is now Momentive Specialty Chemicals Inc. an operating company of Momentive Performance Materials Holdings LLC,“the new Momentive.” ...
plant.
History
Construction began in January 1997, and it was opened on September 7 1998, being owned by the AES CorporationAES Corporation
AES Corporation is a Fortune 500 company that generates and distributes electrical power. The company was founded on January 28, 1981, as Applied Energy Services by Roger Sant from the US Federal Energy Administration and Dennis Bakke from the Office of Management and Budget. AES Corporation is...
, but trading as AES Barry Ltd. It was bought by Centrica
Centrica
Centrica plc is a multinational utility company, based in the United Kingdom but also with interests in North America. Centrica is the largest supplier of gas to domestic customers in the UK, and one of the largest suppliers of electricity, operating under the trading names "Scottish Gas" in...
on July 24 2003 for £39.7m. AES sold the plant because of the low price of electricity at that time.
Specification
It is a CCGTCombined cycle
In electric power generation a combined cycle is an assembly of heat engines that work in tandem off the same source of heat, converting it into mechanical energy, which in turn usually drives electrical generators...
-type power station. There is one 160 MWe Siemens
Siemens
Siemens may refer toSiemens, a German family name carried by generations of telecommunications industrialists, including:* Werner von Siemens , inventor, founder of Siemens AG...
V94.2 gas turbine
Gas turbine
A gas turbine, also called a combustion turbine, is a type of internal combustion engine. It has an upstream rotating compressor coupled to a downstream turbine, and a combustion chamber in-between....
(built by Ansaldo Energia
Ansaldo Energia
Ansaldo Energia, a subsidiary of Finmeccanica, is an Italian power engineering company. It is based in Genoa.-History:The parent company, Ansaldo, started in 1853. It was taken over by Finmeccanica in 1993...
in Genoa
Genoa
Genoa |Ligurian]] Zena ; Latin and, archaically, English Genua) is a city and an important seaport in northern Italy, the capital of the Province of Genoa and of the region of Liguria....
and now called the SGT5-2000E) that feeds exhaust gas at 544C to a heat recovery steam generator. Steam from this enters a 75MWe steam turbine
Steam turbine
A steam turbine is a mechanical device that extracts thermal energy from pressurized steam, and converts it into rotary motion. Its modern manifestation was invented by Sir Charles Parsons in 1884....
running, like the gas turbine, at 3000 rpm
Revolutions per minute
Revolutions per minute is a measure of the frequency of a rotation. It annotates the number of full rotations completed in one minute around a fixed axis...
. Exhaust steam is passed through an air-cooled condenser and returned to the system as de-aerated
Deaeration
Deaeration is the removal of air molecules from another gas or liquid. It can refer to:*Use of a deaerator.*Degasification, the removal of dissolved gases, such as oxygen, from liquids....
feedwater
Boiler feedwater
Boiler feedwater is water used to supply a boiler to generate steam or hot water. At thermal power stations the feedwater is usually stored, pre-heated and conditioned in a feedwater tank and forwarded into the boiler by a boiler feedwater pump....
for the HRSG. It connects to the Western Power Distribution
Western Power Distribution
Western Power Distribution is the trading identity of four electricity distribution companies - WPD South West , WPD South Wales and WPD Midlands...
section of the National Grid via a substation
Electrical substation
A substation is a part of an electrical generation, transmission, and distribution system. Substations transform voltage from high to low, or the reverse, or perform any of several other important functions...
at 132kV. The generator
Alternator
An alternator is an electromechanical device that converts mechanical energy to electrical energy in the form of alternating current.Most alternators use a rotating magnetic field but linear alternators are occasionally used...
on the gas turbine is rated at 180MVA
Volt-ampere
A volt-ampere is the unit used for the apparent power in an electrical circuit, equal to the product of root-mean-square voltage and RMS current. In direct current circuits, this product is equal to the real power in watts...
and has a terminal voltage of 15kV; the steam turbine's is 11kV.
Until 2000, it ran as a baseload station
Base load power plant
Baseload is the minimum amount of power that a utility or distribution company must make available to its customers, or the amount of power required to meet minimum demands based on reasonable expectations of customer requirements...
. The plant is 44% thermally efficient
Thermal efficiency
In thermodynamics, the thermal efficiency is a dimensionless performance measure of a device that uses thermal energy, such as an internal combustion engine, a boiler, a furnace, or a refrigerator for example.-Overview:...
. The chimney is 60m high.