Alstom GT11NMC® 100MW, 60Hz gas turbine unit

The Alstom GT11NMC EV gas turbine is a proven, heavy-duty industrial gas turbine designed for reliable power generation, cogeneration, and combined cycle applications. Building on the successful GT11 platform developed by ABB and later Alstom, the GT11NMC incorporates a modified compressor design and advanced EV (Environmental) dry low-NOx combustion technology, delivering increased output, improved efficiency, and reduced emissions for utility, industrial, and independent power producer (IPP) installations.

The GT11N remains a valuable asset for operators seeking dependable baseload, intermediate-load, or cogeneration performance. The unit features a robust axial-flow compressor, four-stage turbine design, and low-emissions combustion system capable of meeting stringent environmental requirements without the need for water or steam injection. This makes the GT11NMC EV an attractive solution for power plants focused on lowering operating costs while maintaining high availability and reliability.

The GT11N is widely recognized for its durable engineering, long service life, and strong global installed base. Many existing GT11 fleets have been upgraded to the NMC configuration to increase compressor airflow, improve cycle performance, and support modern operational requirements. The platform continues to be supported through service, maintenance, repair, and upgrade programs, making it a practical choice for both plant modernization projects and replacement equipment needs.

HTS, an AP4 company, currently has four GT11NMC EV gas turbine units available for individual or package sale and offers comprehensive refurbishment services for all hot gas path components. In addition to turbine supply, HTS delivers complete project solutions, including auxiliaries, control systems, static frequency converters (SFCs), automatic voltage regulators (AVRs), installation and commissioning, combustion tuning, and mechanical field services. Backed by extensive GT11 expertise, HTS supports customers with equipment supply, plant modernization, and lifecycle services designed to enhance performance, maximize reliability, and extend long-term asset value.