Among the winners were a world-first portable solar system, Australia's first and largest community solar project and a family-owned northern rivers macadamia producer.
The Young Sustainability Champion award went to Liverpool Girls High’s Seda Hamoud for her devotion to raising awareness of sustainability issues.
The Sustainability Champion award acknowledged the tireless and passionate work of Dr Chris Reardon, who passed away in November last year.
An independent panel of environmental experts helped select the winners. The awards are considered the leading environmental awards in NSW and have been running for 16 years.