These are some smaller Aussie renewable energy companies I know of, using everything from wind, hydro, & sun, to silicon:RiseRenewables
AlturaGroup
LyonGroup
EPSEnergy
UPCRenewables Australia
Listed on the ASX:Tilt Renewables - TLT
1414 Degrees – 14D
Previously listed on the ASX but taken over in 2020 byIberdola, a Spanish multinational.
InfigenEnergy - IFN