Biomass Production
Biomass refers to living and recently dead biological material that can be used
as a fuel source. Examples include switchgrass, hemp, wood wastes such yard
clippings or bark, and even livestock manure.
Energy is released from biomass by burning it. Historically the heat released
was used to boil water. The steam produced was used to turn turbines which
generated electricity. Some biomass, such as wood wastes, can be burned
directly. Others such as manure and garbage, however, release methane gas as
they decompose. The methane gas must be captured first and then burned. Biomass
can also be converted into biofuels which can then be burned in a variety of
engines. In recent years newer technologies, such as plasma gasification, have
emerged to take advantage of biomass energy.
Using biomass can help to reduce carbon dioxide (CO2) emissions. Plants store
CO2 as they grow and release it when they are burned. So using biomass and
replanting helps to close the carbon cycle and eliminate net CO2 emissions.
Companies that produce wood products and paper have taken advantage of biomass
energy for decades. Wood wastes not needed for product manufacturing (along with
other wastes created during the logging process) are chipped and burned to fire
a boiler. The energy created is used to power the wood products plant and excess
energy is transmitted to the surrounding community. HGA has been involved with
numerous biomass power plants such as these.