Technical Data

Plant Configuration

Block 1 (VEGA209)

2 EGT Frame 9171E Gas Turbines (Rated at 130MW each)

1 GEC Steam Turbine (Rated at 140MW)

Block 2 (VEGA309)

3 EGT Frame 9171E Gas Turbines (Rated at 130MW each)

1 GEC Steam Turbine (Rated at 210MW)

Combined Nominal Capacity 1000MW

Boilers

5 Stein Industrie vertical, unfired, 2 pressure Heat Recovery Steam Generators. (HP 73 bar, 508°C; LP 7 bar, 221°C)

Cooling System

Main - Direct cooling from River Thames (1.8 million cubic metres per day) via 3.8 m diameter intake and outfall tunnels 40m below the ground surface.

Standby - Forced draft cooling towers

Fuel Supply

Main - Natural gas fuel from Centrica is supplied through a dedicated 19.8km, 24" pipeline linked into the BG National Transmission System at Horndon-on-the-Hill.

Standby - Distillate oil delivered by ship.

Electrical Connection

Connection Point   National Grid 275kV/400kV Barking Substation

Private Circuits      Two 275kV private circuits 2.6km long link the power station and the Barking Substation.

Dimensions

Site 15.3 hectares (38 acres)

Turbine Hall 335m long, 22m wide, and 24mhigh

Stacks   Two 55m tall stacks with separate flues for each gas turbine

The Combined Cycle