Biomass Fuel 2 topics · 2 sources ScienceEnergyBiomass converted directly to energy or converted to liquid or gaseous fuels such as ethanol, methanol, methane, and hydrogen.US DOE Office of Energy Efficiency & Renewable Energy — Glossary of Energy-Related Terms retrieved 2014-05-26 Cite Science› EnergyRenewable EnergyLiquid, solid or gaseous fuel produced by conversion of biomass.Oregon Dept of Energy — ODOE Glossary of Energy Terms retrieved 2014-06-15 Cite