Last month, the company announced electricity had been generated in the first of the facility's two gasifiers.
The company announced earlier this month it was completing maintenance on the first gasifier at the plant, which followed six weeks of successful syngas production including generation of the plant's first electricity using syngas.
The remaining major milestones for the IGCC include successful carbon capture and integration of all systems necessary for both combustion turbines to simultaneously generate electricity with syngas. The expected date for the plant to be placed in service is Dec. 31.