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In the last part of our HA gas turbine educational blog series, you will learn about the HA gas turbine’s global performance and reliability.

Our previous blogs addressed how the high-efficiency HA gas turbines currently play a crucial role in supporting the energy transition through innovation and technological updates, along with the evolution of the HA gas turbines, showcasing the technological milestones and innovations. The HA-class can support the energy transition and achieve these milestones because of its proven reliability, which makes it one of the leaders in the power industry.

HA gas turbines’ reliability and availability

Operational reliability in gas power generation is crucial, especially as the world transitions toward decarbonization.1 Helping to ensure a more stable, sustainable, affordable, and flexible dispatchable power supply remains a priority, and the HA gas turbines have played a significant role in helping to stabilize global power grids and will likely continue to do so. The HA gas turbines actively support efforts to meet decarbonization goals and contribute to critical, strategic projects by providing dependable and flexible energy solutions worldwide.

The HA fleet has surpassed 3 million fired hours (FH) and over 20,400 fired starts (FS) worldwide. GE Vernova’s HA fleet’s experience across different operating environments showcases the higher operational reliability and availability of the HA gas turbines. Factors such as advanced combustion systems and continuous operational monitoring contribute to the performance of the HA gas turbines. The 7HA and 9HA gas turbines have a combined operational reliability of 98.5%.2 Continuous monitoring, diagnostics, and operational data analytics of the 119 commercially operating HA gas turbines, help GE Vernova enable ongoing enhancements to the HA-class.

Ohio, USA

Long Ridge Energy Terminal announced plans to transition its 485 MW combined-cycle power plant to run on carbon-free hydrogen utilizing a 7HA.02.

Taiwan

GE Vernova's 7HAs are helping Taiwan Power Company phase out nuclear power by 2025 and increase natural gas and renewable energy usage.

Germany

As part of the European energy transition, two German plants have installed 9HA gas turbines to convert from coal-to-natural gas and, eventually, hydrogen.

United Kingdom

The NZT Power facility will integrate GE Vernova’s 9HA.02 gas turbine with carbon capture technology to generate low-carbon power.

Malaysia

The Sultan Ibrahim Power Plant (Track 4A) runs on GE Vernova’s first commercial operation, 9HA.02 combined-cycle heavy-duty gas turbines.

Junliangcheng/China

China’s first 9HA.01 commercial operation was a coal-to-natural gas transition supporting ambitions to be carbon-neutral by 2060.

HA success stories

Proven reliability and availability

The HA gas turbine fleet has proven its operational reliability and availability worldwide. From China's coal-to-gas transition to Germany’s coal-to-hydrogen to transition deployments in various regions around the world, the HA gas turbine is helping to reshape the energy mix.

HA gas turbines’ global footprint

As demonstrated in the customer success stories highlighted above, the HA fleet has a significant position in the global energy industry, with a growing number of installations around the globe. The fleet includes over 178 units on order, with more than 119 of them currently in post COD (Commercial Operation Date). Out of the over 178 units sold globally, Asia has 75 HA gas turbines, approximately 42% of the global fleet. These units span across multiple configurations, including HA-heavy duty gas turbine frames that come in 50Hz (9HA) and 60Hz (7HA) segments, single-shaft and multi-shaft, single-fuel and dual-fuel, and several configuration variants such as 7HA.01, 7HA.02, 7HA.03, 9HA.01, and 9HA.02.

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ODC00401-11-HA-global-footprint

*Single shaft/combined-cycle (SS), multi-shaft/combined cycle (MS), simple cycle (SC), fired hours (FH), and fired starts (FS). 
**Data last updated March 2025.

 

Looking ahead and continuous improvement

As the energy industry continues to change and lean towards lower-carbon intensity energy sources, the need for a more reliable, sustainable, and available energy source that can integrate and complement renewables, will continue to grow. The HA gas turbine fills this gap as it helps to ensure a stable power supply for the grid and provides a firm dispatchable power generation complementing renewables, making them a crucial part of the energy transition.

As the power industry continues to evolve, so will the way GE Vernova’s HA-class gas turbines operate. Operational data from the 119 commercially operated HA fleet globally and our comprehensive gas turbine testing facility, GE Vernova’s Test Stand 7 in Greenville, South Caroline, USA, drives continued development and reliability refinements. In Asia, real-time data has recently led to improved operational efficiency and reduced outages. The continuous operation of HA gas turbine frames has been a significant driver in ensuring availability of reliable and dependable power by significantly reducing power shortages in growing and evolving economies worldwide. 

With continued innovation in gas turbine technology leading to improved efficiency, operational flexibility and reliability, and reduced emissions, the HA gas turbines should continue to help enhance grid stability as the world heads toward a more sustainable energy landscape.

  1. Decarbonization, as used in this document, is intended to mean the reduction of carbon emissions on a kilogram per megawatt hour.
  2. Availability and reliability figures are on a cumulative basis and not for guarantee.
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Som Shantanu

Executive, Gas Power Engineering Leader -Asia, GE Vernova Gas Power

As the Asia Engineering Leader, Som is responsible for leading the engineering functions to help deliver on our customer needs and their business priorities, by supporting the entire engineering lifecycle of GE Vernova’s Gas Power technologies in Asia. He, also supports the decarbonization initiative for Asia region, including opportunities in carbon neutral fuels like Hydrogen, Ammonia, and carbon capture technologies, among others.

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