Siemens gas turbines to power 940MW combined cycle plant in Ohio

Siemens will supply two SGT6-8000H gas turbines as part of a US$800 million contract for a 940MW combined cycle power plant (CCPP) in Lordstown, Ohio, USA. Siemens will be the turnkey supplier for Lordstown Energy Center, the new natural gas-fired CCPP, which is expected to supply power for approximately 800,000 households.

Siemens will deliver two SGT6-8000H gas turbines, one SST6-5000 steam turbine, two air-cooled SGen6-1200A generators, one hydrogen-cooled SGen6-2000H steam generator, and two NEM heat recovery steam generators to the facility, which is likely to become operational in summer 2018.

Siemens will also supply the electrical equipment and the instrumentation control system SPPA-T3000. The gas turbines and steam turbine will be manufactured at Siemens’ Charlotte, N.C., USA, Energy Hub, which is the main production facility for Siemens’ 60 Hz power generation. The plant design includes Siemens Flex-Plant combined cycle features, including fast gas turbine start which reduces start up emissions up to 95% and Siemens Clean-Ramp technology designed to maintain low emissions while load following.

The 289 ton SGT6-8000H is said to have a gross power output of 296 MW and can achieve a heat rate of 8999 kJ/kWh. The SGT6-8000H is designed to achieve efficiencies of more than 60% in combined cycle (CC) operation. It has an exhaust mass flow of 640 kg/s and is 10.5 m long, 4.3 m tall and 4.3 m wide.

Siemens has also signed a long-term service agreement to help ensure the reliability, availability and operational performance of the units. The service will include Siemens advanced remote monitoring and diagnostics, part of the Siemens Digital Services portfolio. Siemens Financial Services co-funded the development loan and will provide a 27% equity investment alongside Macquarie Infrastructure and Real Assets to help realize the project.