National Grid plc is working to replace all fossil fuel in its New York and Massachusetts gas networks with renewable natural gas (RNG) and hydrogen as a part of its path to net-zero emissions by 2050, the company announced.

The London-based gas and electric utility announced the plans as a part of its overall blueprint for tackling greenhouse gas (GHG) emissions from heating buildings. By transitioning its gas network and creating new heating solutions, management said it could greatly reduce the source of 39% of GHG emissions in Massachusetts and New York.

National Grid has been using RNG in its gas systems since 1981, but it plans to exponentially grow its procurement of the gas captured from sources like farms and landfills over the next several decades. The utility reported it...