What are the indirect CO2 emission reduction benefits from replacing fossil fuel-derived energy with energy generated from LFG?
The benefits of LFG energy in terms of greenhouse gas emission reductions are substantial. For example, a 3 megawatt LFG energy facility requires approximately 1,075 standard cubic feet per minute (scfm) of LFG to operate.3 Not only does the combustion of this quantity of methane in an LFG energy facility result in direct methane emission reductions, but also in indirect CO2 emission reductions of about 14,300 metric tons per year, depending on the type of fuel that was used to generate the displaced electricity. The indirect environmental benefits of fossil fuel displacement through LFG energy can amount to nearly 13 percent of the direct greenhouse gas emission reduction benefits from methane combustion. The direct and indirect CO2 equivalent (CO2e) emission reductions from a direct-use project utilizing 1,000 scfm of LFG are approximately 105,900 and 12,470 metric tons per year, respectively.
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