Along the trajectory of the 10,000-mile Transco Pipeline—the nation’s largest natural gas transmission system by volume—more than 80 power plants generate electricity using coal. That’s a number Tulsa-based Williams wants to reduce by providing those plants with pipeline access to kickstart their coal conversions. Now, after cancelling project plans this year to construct two gas pipelines in the Eastern corridor that would have added much-needed capacity for electrical utilities and end-users, Williams has received a spot of good news.

Williams Companies

The Williams Companies, Inc., is an American energy company based in Tulsa, Oklahoma. Its core business is natural gas processing and transportation, with additional petroleum and electricity generation assets. A Fortune 500 company, its common stock is a component of the S&P 500.

With FERC approval in tow, the $531 million Leidy South Expansion officially has a greenlight. The project will include two pipeline loops, the replacement of 6.3 miles of Transco’s 24” Leidy Line A with 36” pipe, two compressor upgrades, and two greenfield compressor stations across four Pa., counties. Construction is set to begin early 2021 with completion by year end and will increase takeaway of natural gas from the Marcellus and Utica by 582.4 MMCFD—enough gas to serve more than 2.5 million homes. Williams says Leidy South will increase the company’s footprint in the gas-rich Marcellus while leveraging its recent expansions on Williams’ Northeast Gathering and Processing assets in Pa.

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