Gas, Gas Turbines, New Projects, O&M, Plant Optimization, Retrofits & Upgrades

Siemens completes gas turbine section exchange at McWilliams plant

Siemens Gas and Power has completed its first large gas turbine section exchange in the U.S. at a power plant in Alabama.

The company replaced the gas turbine section (V84.2) at PowerSouth’s McWilliams power plant with a newer SGT6-2000E. Both the utility and Siemens saw this project, known as a Brownfield Engine Exchange Program, as an economically viable alternative to keep replacing parts and older maintenance schedules.

“This is a terrific example of how ingenuity, technical expertise and a commitment to making energy cleaner come together to provide measurable benefits to customers and consumers alike,” said Vinod Philip, CEO Service Power Generation at Siemens Gas and Power. “As the world pays closer attention to how energy is produced and consumed, it is incumbent upon companies like Siemens to help our customers address these concerns with innovative, cleaner energy solutions such as the Brownfield Engine Exchange program.”

The McWilliams plant is now equipped with Si3D blades. The plant is producing 114 MW, nearly 12 percent higher than before the exchange. The gross simple cycle efficiency also improved from 31 to approximately 35 percent, while NOx emissions were decreased by about 50 percent to 10 parts per million.

More than 30 engine exchange projects are either completed or underway worldwide, according to the company.

Siemens also worked on another project focused on making fossil energy greener in Brazil. In the modernization project for Braskem, two SGT-600 gas turbines are co-fired up to 60 percent with hydrogen.

This will result in greater efficiency for the production process of the industrial unit of the Petrochemical Complex and an emission reduction, the company says.