Williams received approval from the FERC to move forward with its Leidy South Project that will create 582,400 Dth/d of additional pipeline capacity and provide enough natural gas to serve the equivalent of more than 2.5 million homes and further enable power plants to convert from coal to cleaner-burning natural gas.
I am not sure most people would agree with Williams that a Natural Gas pipeline is considered "clean energy".
The project will connect abundant supplies of natural gas produced by Cabot Oil & Gas Corp. and Seneca Resources Company, LLC in the Marcellus and Utica regions of Pennsylvania with demand markets along the Atlantic Seaboard by the 2021-2022 winter heating season. UGI Utilities Inc. is a local distribution company that will be using its capacity to directly serve its customers in northeast Pennsylvania.