GE Vernova’s HA Gas Turbine Fleet Achieves Operational Milestone

The HA turbine model was developed for a fundamental shift in the global power sector, involving the replacement of aging coal-fired generation with flexible, low-emission power. GE Vernova announced that its HA gas turbine fleet surpassed 4 million commercial operating hours globally, signaling a major milestone for an advanced and efficient gas turbine technology in the power industry. Since the first unit entered commercial operation in 2016, the fleet has grown to 128 units across 21 countries and has generated approximately 74 GW of power plant capacity—equivalent to the power needed for over 55 million U.S. homes. “Surpassing 4 million commercial operating hours is a validation of the HA fleet’s performance, reliability, and relevance in today’s energy landscape,” said Eric Gray, CEO of GE Vernova’s Power Segment. “This milestone reflects the confidence our customers have placed in GE Vernova’s HA technology and its established role in supporting flexible power generation around the world. As electricity demand rises and energy security is seen as national security, customers are increasingly focused on solutions that can deliver reliable, efficient, and more flexible power.” This achievement also highlights GE Vernova’s HA services, as each new turbine commissioned is usually accompanied by a long-term maintenance and performance contract that grows the company’s high-margin services backlog. The HA turbine model was developed for a fundamental shift in the global power sector, involving the replacement of aging coal-fired generation with more efficient, lower-emission, and flexible power while allowing greater renewable energy integration. Flexible generation is becoming increasingly important as electrification, industrial expansion, and rising demand from data centers and AI drive pressure on global power systems. Under these circumstances, GE Vernova is recording continued demand for gas power technologies as customers prioritize solutions to deploy at scale, operate efficiently, and support grid reliability. As the HA fleet expands, GE Vernova also sees services opportunities as customers seek to maintain performance, availability, and operating flexibility across asset lifecycles. The company is investing across its manufacturing and services footprint, including in Greenville and Schenectady, to bolster capabilities needed for the future. GE Vernova’s approximately $300 million in planned investments underscores the company’s commitment to helping customers deliver reliable, efficient, and more flexible generation at scale. This investment falls under a $700 million plan to meet unprecedented customer demand across the company. In the United States, the HA gas turbine has experienced record success. An example is Duke Energy securing 20 advanced HA gas turbines, several of which are included in a framework agreement executed in 2025. Apart from traditional customers, a non-utility customer archetype is emerging from data centers—this includes hyperscalers and other project developers which represent approximately 20% of total gas turbine contracts. Earlier this month, ENKA and GE Vernova officially kickstarted commercial operations at the 852-MW Kirklareli power plant in Türkiye, approximately 20 miles from the Bulgarian border. GE Vernova supplied its combined-cycle power generation equipment, including a 9HA.02 gas turbine with H78 generator, an STF-D650 steam turbine, and a triple-pressure heat recovery steam generator. The company also signed a multi-year, long-term maintenance agreement to enhance asset visibility, reliability, and availability. All engineering, procurement, construction, and commissioning activities were executed by ENKA’s in-house teams, with about 8 million hours of effort over a 36-month execution timeline. The Kirklareli facility is expected to be among the most efficient combined-cycle gas power plants in Türkiye, achieving over 63% net efficiency in combined-cycle mode. The facility is the first HA-power plant domestically and represents a milestone in the modernization of Türkiye’s power generation fleet.