GE’s 7HA high efficiency, air cooled gas turbine is an industry leader among H-class offerings and is available in two models—the 7HA.01 at 280 MW and the 7HA.02 at 346 MW.

Industry-Leading Operational Flexibility

Features a 10-minute ramp-up from start command to full load, and up to 50 MW/min in a 1x1 configuration or 100 MW/min in a 2x1 configuration.

Less Complex H-Class Offering

Simpler configuration and modular systems facilitate easier installation with 10,000 fewer man-hours than the 7F.03 gas turbine.

Full-Load Validation

The 2016 testing of the 7HA technology in GE's full-speed, full-load test facility in Greenville, SC, reinforces the impressive performance and robust capabilities of these units.
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7HA.01 / 7HA.02

The economies of scale created by the 7HA, combined with its more than 62 percent combined-cycle efficiency, enables the most cost-effective conversion of fuel to electricity to help operators meet increasingly dynamic power demands.

  • Streamlined maintenance with quick-removal turbine roof, field-replaceable blades, and 100 percent borescope inspection coverage for all blades 
  • Simplified dual-fuel system uses less water, eliminates recirculation, and utilizes enhanced liquid purge for improved reliability and dependability
  • 14-stage advanced compressor with 3D aerodynamic foils with superfinish, 3 stages of variable stator vanes, and field-replaceable blades
  • DLN 2.6+ combustor with axial fuel staging is proven through 45,000 starts and >2 million hours
  • Combustor enables improved turndown and greater fuel flexibility
  • Reduces need for on-site gas compression; fuel pressure requirements as low as 435 psi/30 bar
  • Fuel flexible to accommodate gas and liquid fuels with wide gas variability, including high ethane (shale) gas and liquefied natural gas

 

FORMER NAMES:
Frame 7H, 7F 7-Series, 7F-7, 7FA.06, FE60


Explore the HA's Modular Gas Turbine Enclosure

GE’s HA gas turbine auxiliary systems are pre-configured, factory assembled and tested modules engineered to reduce field connections, piping, and valves. This translates to a simpler installation that reduces field schedule and installation quality risks while improving overall installation times—up to 25% quicker compared to GE F-class gas turbine enclosures.

Explore the HA's Modular Enclosure


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Product Specifications

7HA

Fact Sheet

01 02
50/60 60 HZ 60 HZ
SC Output
(MW)
280 346
SC Net Heat Rate
(Btu/kWh, LHV)
8180 8080
SC Net Heat Rate
(kJ/kWh, LHV)
8630 8525
SC Efficiency
(%, LHV)
41.7% 42.2%
Compressor Pressure Ratio 21.6 23.1
Exhaust Temp
(°F/°C)
1159/626 1153/623
Exhaust Energy
(MMBtu/hr)
1338 1617
GT Min. Turn Down Load
(%)
25% 30%
NOx Emission
(@ 15% O2 ppm)
25 25
CO Emission
(ppm)
9 9
Exhaust Energy
(MM kJ/hr)
1412 1705
GT Ramp Rate
(MW/minute)
50 50
Wobbe Variation
(%)
+/- 10% +/- 10%
Startup Time - Conventional / Peaking (min.) 21/10 21/10

7HA

Fact Sheet

01 02
Block Configuration
(GTs x STs)
1x1 1x1
CC Net Output
(MW)
419 509
CC Net Heat Rate
(Btu/kWh, LHV)
5520 5500
CC Net Heat Rate
(kJ/kWh, LHV)
5824 5803
CC Net Efficiency
(%, LHV)
61.8% 62.0%
Bottom Cycle Type 3PRH 3PRH
HP Throttle Pressure
(psia/bar)
2606/180 2606/180
HP Throttle Temp
(°F/°C)
1112/600 1112/600
Reheat Temp
(°F/°C)
1085/585 1085/585
ST Configuration (Type) ST-D650 ST-D650
GT Generator Type (Cooling) TOPGAS TOPGAS
ST Generator Type (Cooling) TOPAIR TOPGAS
Plant Turndown - Minimum load
(%)
33% 38%
Ramp Rate
(MW/minute)
50 50
Startup Time
(RR Hot, minutes)
<30 <30

7HA

Fact Sheet

01 02
Block Configuration
(GTs x STs)
2x1 2x1
CC Net Output
(MW)
842 1021
CC Net Heat Rate
(Btu/kWh, LHV)
5500 5480
CC Net Heat Rate
(kJ/kWh, LHV)
5803 5782
CC Net Efficiency
(%, LHV)
62.0% 62.3%
Bottom Cycle Type 3PRH 3PRH
HP Throttle Pressure
(psia/bar)
2583/178 2611/180
HP Throttle Temp
(°F/°C)
1112/600 1112/600
Reheat Temp
(°F/°C)
1085/585 1085/585
ST Configuration (Type) ST-D650 ST-D650
GT Generator Type (Cooling) TOPGAS TOPGAS
ST Generator Type (Cooling) TOPGAS TOPGAS
Plant Turndown - Minimum load
(%)
16% 18%
Ramp Rate
(MW/minute)
100 100
Startup Time
(RR Hot, minutes)
<30 <30
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