Renewable natural gas - Wikipedia
https://en.wikipedia.org/wiki/Renewable_natural_gasRenewable natural gas (RNG), also known as sustainable natural gas (SNG) or biomethane, is a biogas which has been upgraded to a quality similar to fossil natural gas and having a methane concentration of 90% or greater. By increasing the concentration of methane to a similar level as natural gas, it becomes possible to distribute the gas to customers via the existing gas grid and use in existing appliances. Renewable natural gas is a subset of synthetic natural gas or substitute n…
Biogas | Biomethane | ENGIE
www.engie.com › en › activitiesEnergy for the good of the planet. Produced locally, this energy supports the energy transition. Made from organic matter, biogas is a 100% renewable energy allowing a significant reduction in greenhouse gas emissions and improving air quality.