Limestone Renewable Natural Gas Facility

EDL is the owner and operator of the Limestone Renewable Natural Gas (RNG) Facility, which is located adjacent to and works collaboratively with the Republic Services Carbon Limestone Landfill, near Youngstown, Ohio. When fully operational in 2024 it will be capable of converting waste gases from landfill into approximately 1.7 million MMBtu (million British thermal units) per year of pipeline-quality RNG.

EDL is using technology to process landfill gas to RNG and the facility began operating in July 2023. When fully operational in 2024 it will be capable of converting waste gases from landfill into approximately 1.7 million MMBtu per year of pipeline-quality RNG. RNG from the Limestone facility will be used as a cleaner fuel source for powering vehicles, heating homes through the natural gas system, or electricity generation.

At a glance

  • Project name:

    Limestone RNG Facility

  • Owner, operator:

    EDL

  • Start of operation:

    August 2023 (LFG to RNG)

  • Location:

    Youngstown, Ohio, United States of America

  • Primary fuel:

    Landfill gas

  • RNG produced p.a.:

    up to 1.7 million MMBtu by 2024

  • Avoided emissions:

    The equivalent of about 5.5 million gallons of diesel p.a. when used in vehicle transport

  • Equivalent cars off the road:

    up to 13,521 p.a.

  • Data sourced from :

    CY2023

About the RNG facility

EDL upgraded the existing power plant that converted waste gases from the Republic Services Carbon Limestone Landfill into electricity, to develop a new RNG facility.

At operating capacity, the RNG facility will extract landfill gas and convert it into approximately 1.7 million MMBtu/year of pipeline quality RNG. Using this RNG instead of natural gas will displace about 61,000 tCO2-e (tons of carbon dioxide equivalent emissions) per year that would have otherwise resulted from combusting comparable fossil fuels.

The Limestone RNG facility started processing gas in July 2023, and will ramp-up to full operating capacity in 2024. During plant commissioning and at certain times during operations a visible flare flame will be noticeable. This is a normal part of the commissioning process.

A flare is a device that controls gas emissions by igniting and burning excess unburnt LFG before it can be released to the atmosphere.

Flares are used to control LFG emissions during start up and downtime of the energy recovery system and to control gas that exceeds the capacity of the energy conversion equipment.

Throughout all commissioning activities and into operation, EDL will continue to ensure safety and operational practices meet the highest standards.

There are no risks to area residents associated with the flare. The plant meets or exceeds all local, state, and federal safety standards, including those set by the Ohio EPA, Ohio DOT, OSHA, and local regulations.