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Landfill Methane Outreach Program

Note: EPA no longer updates this information, but it may be useful as a reference or resource.

Project Profile

Delaware Solid Waste Authority Cherry Island Landfill Gas Energy Project

LMOP Award Winner
Wilmington, Delaware
End User(s):
Connectiv Power
Cherry Island Landfill
Landfill Size:
11.8 million tons waste-in-place (2009)
Project Type:
Boiler/Steam Turbine
Project Size:
4,444 standard cubic feet per minute (scfm)
Reduces annual natural gas demand by 1.7 billion cubic feet
Environmental Benefits:
Carbon sequestered annually by 112,200 acres of pine or fir forests, annual greenhouse gas emissions from 100,600 passenger vehicles, or carbon dioxide emissions from 1,223,400 barrels of oil consumed. Annual energy savings equate to powering 6,800 homes. Estimated emissions reductions of 0.1435 million metric tons of carbon equivalents.
LMOP Partners Involved:
Delaware Solid Waste Authority
Last Updated:

The Delaware Solid Waste Authority (DSWA) continued its commitment to excellence in solid waste management when it began collecting and selling landfill gas (LFG) to an electric utility in 1995. In addition to the Cherry Island project, DSWA has brought on line LFG energy projects at their Central Solid Waste Management Center Landfill (3.18 megawatts) and Southern Solid Waste Management Center Landfill (4.24 megawatts). Such leadership earned DSWA LMOP's State Partner of the Year award in 1999 and again in 2006.

The project's highlights include:

  • Reduces natural gas demand.
  • Generates clean, renewable energy.
  • Promotes public-private cooperation.

With nearly 7 million tons of waste in place in 2001, EPA estimated the landfill would produce more than 100 million tons of methane gas per year in the coming years. To keep up with such high production, DSWA took action. They upgraded the LFG compressors, upgraded the LFG header piping, and added new wells. They even added a larger back-up flare. The equipment improvements boost the efficiency of the control system and reduce odors.

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