Renewable Gas / Bio Gas

Renewable Natural Gas (RNG), also known as bio-methane or biogas, is pipeline quality gas derived from biomass that is fully interchangeable with natural gas. The future natural gas network could include renewable gas from dairy farms, waste water treatment plants, landfills, wood waste and food waste plants.

In the Northeast, there is growing interest and initiatives toward implementing RNG. Vermont Gas is the first utility in the nation with a retail RNG offering. National Grid has been an active proponent for several years of incorporating biogas into the natural gas system. In a position paper a few years ago, National Grid observed that "the biggest driver of renewable gas is GHG reduction, but what makes renewable gas more compelling is that it also enhances diversity of supply while providing a solution for using local waste resources to produce renewable energy." NGA is working in New York State on an "(RNG) Interconnect Guidance Document" intended to enhance understanding of both technical and policy issues to ensure RNG project interconnect success.

Source: National Grid

The U.S. Department of Energy notes that "like conventional natural gas, RNG can be used as a transportation fuel in the form of compressed natural gas (CNG) or liquefied natural gas (LNG). RNG qualifies as an advanced biofuel under the Renewable Fuel Standard."

The Gas Technology Institute (GTI) notes that "Bio-methane and liquid biofuels provide an opportunity to supply affordable, clean, domestically-sourced energy to U.S. and global energy customers. These renewable energy sources can help companies comply with renewable portfolio standard (RPS) requirements, low carbon fuel standards, and other policy-driven efforts intended to promote the use of renewable and sustainable energy resources for power generation, transportation, and other end use market applications."