Carbon dioxide (CO2) emissions declined by about 14% when 35% of hydrogen by volume was blended with natural gas to generate electricity in a demonstration project commissioned by the New York Power Authority (NYPA), and could fall further with more hydrogen added to the mix. However, more work needs to be done to study the impact of blending on other greenhouse gasses.

Hydrogen Production

NYPA carried out the hydrogen blending on an LM6000 gas turbine at its Brentwood Power Station on Long Island in partnership with the Electric Power Research Institute Inc.’s Low-Carbon Resources Initiative and General Electric (GE). The GE turbine was operated on green hydrogen blends ranging from 5% to 44% by volume. Based on the early results, CO2 emissions could decline to zero at a 100% hydrogen cofiring...