GE Energy H SYSTEM WORLD S MOST ADVANCED COMBINED CYCLE TECHNOLOGY

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1 GE Energy H SYSTEM WORLD S MOST ADVANCED COMBINED CYCLE TECHNOLOGY

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3 World s Most Advanced Combined Cycle Gas Turbine Technology GE s H System the world s most advanced combined cycle system and the first capable of breaking the 60% efficiency barrier integrates the gas turbine, steam turbine and heat recovery steam generator into a seamless system, optimizing each component s performance. Undoubtedly the leading technology for both 50 and 60 Hz applications, the H delivers higher efficiency and output to reduce the cost of electricity of this gas-fired power generation system.

4 H System 2 H SYSTEM Closed-Loop Steam Cooling Open-loop air-cooled gas turbines have a significant temperature drop across the first stage nozzles, which, for a given combustion temperature, reduces firing temperature. The closed-loop steam cooling system allows the turbine to fire at a higher temperature for increased performance. It is this closedloop steam cooling that enables the H System to achieve 60% fuel efficiency capability while maintaining strict adherence to environmental standards. For every unit of power it will use less fuel and produce fewer greenhouse gas emissions compared to other large gas turbines. Baglan Bay Power Station Port Talbot Wales, UK is the launch site for GE s H System. Single Crystal Materials The use of these advanced materials, on the first stage nozzles and buckets, and Thermal Barrier Coatings, on the first and second stage nozzles and buckets, ensures that these components will stand up to high firing temperatures while meeting maintenance intervals. Dry Low NO x Combustors PSP Building on GE s design experience, the H System employs a canannular lean pre-mix DLN-2.5 Dry Low NO x (DLN) Combustor System. Fourteen combustion chambers are used on the 9H, and 12 combustion chambers are used on the 7H. GE DLN combustion systems have demonstrated the ability to achieve low NO x levels in several million hours of field service around the world. An MS9001H is seen during assembly in the factory. RDC

5 Small Footprint/High Power Density The H System offers approximately 40% improvement in power density per installed megawatt compared to other combined cycle systems, once again helping to reduce the overall cost of producing electricity. 3 H SYSTEM Thoroughly Tested The design, development and validation of the H System has been conducted under a regimen of extensive component, sub-system and full unit testing. Broad commercial introduction has been controlled to follow launch units demonstration. This thorough testing approach provides the introduction of cutting edge technology with high customer confidence. MS9001H/MS7001H Combined Cycle Performance Net Plant Output (MW) Heat Rate (Btu/kWh) Heat Rate (kj/kwh) Net Plant Efficiency GT Number & Type 50 Hz S109H 520 5,690 6, % 1 x MS9001H 60 Hz S107H 400 5,690 6, % 1 x MS7001H PSP A 9H gas turbine is readied for testing.

6 Baglan Bay Power Station Port Talbot, Wales * 4 BAGLAN BAY POWER STATION 100% GE-owned investment in validation of the revolutionary H System technology and turnkey construction comprised of two power plants. 109H System Combined Cycle Power Plant 520 MW; single shaft Firing temperature class: 1430 C (2600 F) 18 stage compressor w/23:1 pressure ratio; airflow 1510 lbs/sec 14 can DLN 2.5; NOx emissions: < 25 ppm Other Baglan Power Station Features GE Mark VI-based Integrated Control System 10 cell cooling tower Chimney: triple flue; slip form poured GE Water Technologies Treatment Plant 275 kv switchyard connecting to National Steam Turbine: GE design; reheat, single flow exhaust; co-mfg. with Toshiba Generator: GE 550 MW LSTG; 660 MVA liquid cooled HRSG: 3 pressure level reheat LM2500 Combined Heat and Power Plant 33 MW GE LM2500 HRSG; auxiliary boiler and 2 cell process cooling tower Plant provides utility supply to Baglan Energy Park ** Electricity, steam, demineralized and attemperated water, process cooling Blackstart capability * Plant located on site leased from BP ** Baglan Energy Park Joint development among BP, Welsh Development Agency and Neath Port Talbot County Borough Council Transmission (Electricity) System 33 kv switchyard with local supply to Baglan Energy Park Pipeline Reception Facility (PRF) For 12 km Baglan pipeline spur to National Transmission (Gas) System Gas compression and pressure reduction capability, featuring GE centrifugal compressors Cover Photo: PSP , Inside Cover Photos: PSP , PSP Designed by GE Energy s Creative Services team.

7 GE Products and Services Used at Baglan Include: 9H Gas Turbine, LP Steam Turbine, Generator and other Power Train Equipment and Accessories EPC Project Management Technical Advisors Operations & Maintenance; Monitoring and Diagnostics 5 BAGLAN BAY POWER STATION LM2500, Plant Compressors, Gas Compressors Water Treatment Systems World s first 9H gas turbine is transported through Wales to Baglan Bay Power Station. 2 MW Diesel Generator Construction and Testing Power (Energy Rentals) Switchyard Control System; GT Instruments BOP PLCs and Operator Interfaces Plant-Merchant Systems Integration Software IT Integration Support Plant Financing Integrated Control System with Mark VIs PSP kv Switchgear Various Pump and Valve Motors Turbine Hall and BOP Lighting PRF Control Systems Integration Commissioning PSP Pipe Installation Technical Advisors

8 GE Energy 4200 Wildwood Parkway Atlanta, GA gepower.com GEA 13585C (11/05)