Southwestern Electric Power Co. on Nov. 16 filed a quarterly update with the Arkansas Public Service Commission that said the air emissions retrofit project at the coal-fired Flint Creek plant is tracking on time and under budget.
The quarterly update was written by Garver LLC, hired by the utility as the project’s independent monitor.
The Flint Creek pant is a baseload, pulverized coal-fired unit with a net generating capacity of 528 MW. The plant was put into commercial operation in 1978. The single unit at the plant is co-owned equally by SWEPCO and Arkansas Electric Cooperative. The unit has a balanced draft configuration with forced draft and induced draft fans.
The ongoing FGD project includes the installation of an Alstom Novel Integrated Desulphurization (NID) system to comply with the Mercury and Air Toxics Standards (MATS) and in anticipation of the Best Available Retrofit Technology (BART) rule. The NID system and associated equipment are being constructed adjacent to and on the south side of the plant. The project also includes an Activated Carbon Injection (ACI) system between the NID and the Unit 1 burners.
SWEPCO parent American Electric Power (NYSE: AEP) has secured a one-year extension to the MATS deadline (out to April 2016) and has established design, procurement, and construction schedules that will bring the upgraded plant fully on line by May 29, 2016.
The total estimated cost at completion of the project was lowered from $371.5 million to $366.5 million due a contingency reduction. This reduction in contingency is significant because the estimated cost at completion is now lower than the original 2012 filing with the Arkansas Public Service Commission. At that point, the total estimated project cost was $408.7 million, which included $25 million for landfill improvements and $16 million for Low NOx burner improvements. The landfill and Low NOx scopes are excluded from the FGD project, which brings the original estimated cost to $367.7 million. The FGD project is now $1.2 million less than originally estimated.