The 800-megawatt Unit 1 and all common facilities of the two-unit complex at Luminant’s new supercritical Oak Grove Power Plant in Robertson County are online having recently achieved substantial completion, according to Irving-based Fluor Corp.

Unit 1 passed the required performance and emissions compliance tests. Unit 2 is scheduled for completion in mid-2010.

Site-based personnel employed by Fluor peaked at nearly 2,400 workers. Oak Grove Units 1 and 2, when complete, will have lower emission rates than any existing lignite plant in Texas and are expected to be at least 70% lower than the average coal plant in the U.S. The two units will be capable of generating 1,600 MW, according to Fluor.

In addition to environmental control equipment that will reduce nitrogen oxide emissions, sulfur dioxide and particulate matter, Oak Grove is the nation’s first pulverized coal plant fueled by lignite to utilize new activated carbon sorbent injection technology to remove mercury.