GE Vernova 7HA 03 Gas Turbine

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2. MOST FLEXIBLE 60 HERTZ GAS TURBINE
•  Industry-leading flexibility, full gas turbine load in 10
minutes, full combined-cycle plant load in <30 minutes and
is a great complement to intermittent renewable sources
•  Improved gas turbine ramp rate—more than 75 MWs per
minute, 15 more MWs per min than the 7HA.02
•  Double the fuel flexibility of 7HA.02, helping customers
manage the changing global gas market and minimize fuel
costs by negotiating lower gas contracts
3.  LOWER CAPITAL COSTS, DECREASED
INSTALLATION AND COMMISSIONING TIME
•  Largest combined cycle block of power, driving economies
of scale and the lowest installed cost on a $/kwh basis
•  GE Vernova’s continuous gas turbine modularization
improvements help minimize installation times, significantly
de-risking construction
•  Modular packaging configuration shortens the critical path
installation cycle by 8 weeks
The 7HA.03 offers several specific design features
Compressor: First developed for the 7F.05 gas turbine, this
advanced compressor has accumulated more than 1 million
operating hours. It retains the same 14-stage design, same
airfoil counts, same material sets, and same pressure ratio
from the 7HA.02 gas turbine. The compressor airflow has been
increased with the continued use of a Titanium R1 blade row.
Combustor: The 7HA.03 leverages GE Vernova’s latest
combustion technology, the DLN 2.6e. GE Vernova first
introduced Dry Low NOx (DLN) combustion technology more
than 46 years ago. Globally more than 1150 gas turbine are
operating with GE Vernova’s DLN system. Gas turbines with
this DLN family of combustors have accumulated more than 75
million operating hours.
The DLN 2.6e combustion system continues to use staged
fuel combustion, or axial fuel staging (present on all HA gas
turbines). An advanced premixer doubles the fuel flexibility
with validated ability to operate on both rich and lean natural
gas variants. The design continues to use unibody construction
where the liner and transition piece have been combined.
The DLN 2.6e design yields a combustor with higher firing
temperature capability, lower emissions, higher durability,
lower turndown via a park mode, and higher fuel flexibility.
Turbine: The 7HA.03 has a 4-stage turbine architecture
originally introduced in the early 2000’s on the steam cooled
H but eliminates steam cooling from the hot gas path. The
evolved HA design uses passive cooling and proven alloys
from both GE Vernova’s F and H-Class with over 70M fired
hours of experience. It does not rely on externally cooled air
or the associated heat exchangers that other OEMs require
for their advanced gas turbines, offering power producers
reduced plant capital costs, a smaller footprint, lower auxillary
loads, and decreased operation and maintenance costs
through greater availability and reliability.
7HA.03
SC Plant
Performance
SC Net Output (MW) 430
SC Net Heat Rate (Btu/kWh, LHV) 7,897
SC Net Heat Rate (kJ/kWh, LHV) 8,332
SC Net Efficiency (%, LHV) 43.2%
CC Net Output (MW) 640
CC Net Heat Rate (Btu/kWh, LHV) 5,342
1x CC Plant
Performance
CC Net Heat Rate (kJ/kWh, LHV) 5,636
CC Net Efficiency (%, LHV) 63.9%
Plant Turndown – Minimum Load (%) 33.0%
Ramp Rate (MW/min) 75
Startup Time (RR Hot, Minutes) <30
CC Net Output (MW) 1,282
CC Net Heat Rate (Btu/kWh, LHV) 5,331
2x CC Plant
Performance
CC Net Heat Rate (kJ/kWh, LHV) 5,624
CC Net Efficiency (%, LHV) 64.0%
Plant Turndown – Minimum Load (%) 15.0%
Ramp Rate (MW/min) 150
Startup Time (RR Hot, Minutes) <30
NOTE:  All ratings are net plant, based on ISO conditions and natural
gas fuel. Actual performance will vary with project-specific
conditions and fuel.
7HA.03 Combined Cycle Power Plant
GE Vernova has global expertise managing large scale power
projects — for more than 70 years we’ve designed combined
cycle power plants, longer than any other OEM. We draw on a
rich history of technology and innovation, developing advanced
materials, cooling, aerodynamics, combustion and controls
technologies to enhance gas turbine-based power generation.
The 7HA.03 combined cycle power plant is now available at
>64% net combined-cycle efficiency; higher than any other
60 Hz competing technology today on an industry standard
basis. Performance of the HA combined cycle power plants
has exceeded expectations, proven by comparing actual
tested output and efficiency to contractual guarantees. The
first 40 HA gas turbine plants operating in the field today
have met or exceeded performance guarantees and are
successfully generating electricity at various site conditions
on their grids around the world.
GE Vernova works with EPC partners to design power plants
that are flexible in their operation and include features
our customers care about—fast start, load ramping, low
turndown, fuel variation, and high part-load efficiencies. This
flexibility delivers improved plant economics:
• Reduced capital, operations and maintenance costs
• Shorter installation times
• Faster revenue production