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Many landfill gas (LFG) electricity projects are reaching the end of their power purchase agreements (PPAs) in an unfavorable electricity market. LMOP’s LFG energy project database shows there are more than 280 currently operating electricity projects that are at least 10 years in age, a typical PPA length. LMOP is committed to helping project owners in this situation find solutions to continue reducing landfill methane emissions.
LMOP will provide an overview of our Toolkit for Expiring LFG Electricity PPAs, a new web resource presenting electricity project owners with a variety of options and including criteria, pros and cons, and economic considerations. For example, an owner may decide to renegotiate a PPA, pursue a new project type, or if necessary, shut down an electricity project but continue mitigating LFG emissions.
Two additional speakers will share their experiences in (1) supplementing a microgrid with LFG electricity and (2) using biofilters to mitigate methane emissions. While not in response to an ending PPA, these two projects provide LFG electricity project owners applicable examples of potential paths forward.
The Marine Corps Air Station (MCAS) Miramar’s microgrid is partially powered by 3.2 megawatts of LFG electricity via a 6.5-mile power line from the West Miramar Landfill in San Diego, California. Mick Wasco of MCAS Miramar will speak on the operations and benefits of a microgrid that incorporates renewable energy.
Peter Bannister of Aspect Consulting will present on the installation and use of biofilters at the Jefferson County Landfill in Washington after the LFG flow rate declined to the point that flaring was no longer feasible. Fourteen wood mulch biofilters oxidize methane and biodegrade hydrogen sulfide as LFG passes through.