Related to Biomass Icon
Related icons are the icons with matching tags, as well as all industry icons. All icons are in the same flat style. You can either download free PNG icons or buy SVG vectors
Icons for green/renewable energy sources. The two I'm looking for are a Wind Turbine and Solar Panels. Other possible ideas are Hydroelectric, Geothermal, and Biomass, but those icons may be more difficult to portray with a simple icon.