In 2019, coal power is still an important form of electricity in the United States, accounting for 23.5%, which provides the infrastructure for coal-fired coupled biomass power generation. Biomass power generation only accounts for less than 1%, and another 0.44% of waste and landfill gas power generation is sometimes included in biomass power generation.

In the past ten years, the U.S. coal power generation has declined significantly, from 1.85 trillion kWh in 2010 to 0.996 trillion kWh in 2019. Coal power generation has been reduced by almost half, and the proportion of total power generation has also increased from 44.8. % Reduced to 23.5%.

The United States began research and demonstration projects for biomass-coupled power generation in the 1990s. The types of boilers for coupled combustion include grate furnaces, cyclone furnaces, tangential boilers, opposed boilers, fluidized beds and other types. Subsequently, about one-tenth of more than 500 coal-fired power plants have carried out biomass-coupled power generation applications, but the ratio is generally within 10%. The actual operation of biomass-coupled combustion is also non-continuous and fixed.

The main reason for biomass-coupled power generation in the United States is that there is no uniform and clear incentive policy. Coal-fired power plants intermittently consume some low-cost biomass fuels such as wood chips, railroad ties, saw foam, etc., and then burn biomass. Fuel is not economical. With the vigorous development of biomass-coupled power generation in Europe, related suppliers of the biomass industry chain in the United States have also turned their target markets to Europe.