Greenhouse gases are bad.
We make them something good.
As a society, we produce a lot of waste. This is a problem because when organic matter decomposes, it naturally releases methane, one of the greenhouse gases most detrimental to the environment. In the United States, landfills and livestock manure are responsible for nearly a quarter of all methane emissions. Rather than allow this methane to escape into the atmosphere and contribute to global warming, we capture it and turn it into renewable natural gas (RNG), a low-carbon fuel for heavy-duty trucks, buses, refuse fleets, and other large vehicles.
Clean Energy actively produces RNG at numerous dairy farms around the country. The manure is collected and placed into a digester, which captures the biogas as the waste decomposes. Next, the biogas is processed and purified until it is chemically indistinguishable from conventional natural gas. Then RNG simply drops into the existing interstate pipeline system and is routed to Clean Energy stations nationwide.
A turbo boost on the road to net zero.
To truly evaluate any alternative fueling solution, you have to look beyond tailpipe emissions and also consider the source.
Carbon intensity, or CI value, is a calculation of the total greenhouse gas emissions generated throughout a fuel’s entire lifecycle: from production, refinement, transportation, to combustion in an engine.
A negative carbon-intensity rating means that the fuel avoids more emissions during its lifecycle than it generates. RNG from dairy manure has a deeply negative CI value because it prevents large quantities of methane from entering and damaging the atmosphere. That’s why Clean Energy invests so heavily in dairy RNG production.
