Landfill Methane Outreach Program
St. John's Landfill
- Portland, Oregon
- End User(s):
- Ash Grove Cement Company
- St. John's Landfill
- Landfill Size:
- 12 million tons waste-in-place (1999)
- Project Type:
- Direct Thermal (lime kilns)
- Project Size:
- 3,500 standard cubic feet per minute (scfm)
- Environmental Benefits:
- Carbon sequestered annually by 9,300 acres of pine or fir forests, annual greenhouse gas emissions from 8,300 passenger vehicles, or carbon dioxide emissions from 101,500 barrels of oil consumed. Annual energy savings equate to heating 11,900 homes. Estimated emissions reductions of 0.0119 million metric tons of carbon equivalents.
- LMOP Partners Involved:
- Ash Grove Cement Company, Metro, Palmer Capital Corporation
- Last Updated:
The power of partnerships led to the success of the St. John's Landfill project in Portland, Oregon. Metro, a regional planning authority then known as Portland Metro, joined forces with Portland Landfill Gas Joint Venture Partners, a group comprising Ash Grove Cement Company and Palmer Capital, to make a first-of-its-kind landfill gas (LFG) energy project a reality. This innovative project was named LMOP Project of the Year in 1998.
Portland Landfill Gas Joint Venture Partners pipes LFG from St. John's Landfill to Ash Grove's Rivergate lime plant. Prior to completion of the St. John's Landfill project, the kilns were fueled by natural gas and recycled fossil fuels. Utilizing LFG posed an opportunity for Kansas-based Ash Grove Cement to lower utility costs and reduce emissions.
The project's highlights include the following:
- First time use of LFG as sole power source for lime kilns.
- Lower utility costs and lower emissions.
- Stable, competitively-priced fuel source.
Until Portland Landfill Gas Joint Venture Partners approached Metro, methane generated by the landfill was collected and flared on site, allowing a valuable, renewable energy resource go to waste.
It takes a lot of energy to fire our kilns, but the 17,000 therms per day produced by the St. John's project is enough to power the kilns 24 hours a day. LFG has proven to be a viable, and reliable, source of energy for Ash Grove. —Gary Wright, Plant Manager, Ash Grove Cement