Engine & Turbine Technology
Fig. 1. Each Trent 60 unit will feature Rolls-Royce low emissions technology to minimise environmental impact.
Investment focuses on efficient turbine technology
Investment in higher-efficiency turbines is growing as power generators seek to increase plant profitability. Sean Ottewell reports.
La inversión en turbinas de gran eficiencia está aumentando al igual que los generadores energéticos buscan incrementar la fiabilidad de las centrales. Informa Sean Ottewell.
Investitionen in leistungsfähigere Turbinen steigen, da sich die Stromerzeuger bemühen, die Anlagenrentabilität zu erhöhen. Sean Ottewell berichtet.
G
E has received a contract for nearly US$200m (€155m) to supply steam turbine technology, power generation services and distributed control systems for
the conversion of Saudi Electricity Company’s (SEC) PP10 power plant from simple to combined-cycle operation. Te project will add 1300MW to the plant’s capacity in order to support the growing power requirements of Saudi Arabia’s central region and help the Kingdom meet summer peak demands. “Te conversion to combined-cycle operation
is part of our growth plan to add an average of 4000MW of power each year, with a vision of doubling the grid capacity by the year 2020,” said Ali Saleh Al Barrak, president and ceo for SEC. “In addition to increasing plant capacity by more than 50 per cent, from about 2200 to 3500MW, the conversion will raise overall plant efficiency,” he added. GE is to provide ten of its SC series steam turbines specifically for the PP10 combined cycle expansion. Te company previously supplied 40 7EA gas turbines for the PP10 site. A combined-cycle conversion enables the plant to increase its output without any increase in fuel, boosting its operating efficiency.
In addition to the SC series steam turbines, GE will supply new balance-of-plant mechanical and electrical equipment. An existing simple cycle Mark Vle integrated control system (ICS) will be expanded to incorporate the entire combined- cycle plant. GE power generation services will include installation, testing, commissioning and completing the combined-cycle conversion. Shipment of the equipment is scheduled to begin in the first quarter of 2013, with services to start in the second quarter of that year. Te first two combined-cycle blocks at PP10 are scheduled to begin commercial operation in the second quarter of 2014, in time to meet summer peak demands, while the full combined-cycle plant will be on line by the first quarter of 2015. Te Riyadh PP10 site recently entered
commercial operation in simple cycle mode and is adding about 2000MW to Saudi Arabia’s grid to support the country’s electricity demand and increase the power capacity in SEC’s central operation area by 20 per cent. Building on a successful 40-year old
relationship, GE’s on-time delivery of the Frame 7EA gas turbines for the Riyadh PP10 site enabled SEC to provide reliable electricity for the Riyadh Central grid. GE’s Mark VIe ICS
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