The renewable energy exhibition, a collaboration between year 8 students at CHS and five primary schools: Binda, Bigga, Laggan, Taralga and Crookwell Public Schools, has been worked on since July.

It was funded by the NSW Department of Education and the STEM Industry School Partnership Program.

The science, technology, engineering and mathematics research project provides students in regional areas hands-on learning opportunities and skills, project officer at Regional Development Australia Southern Inland (RDA), Camilla Staff said.

RDA has worked with the schools and businesses in the renewable energy sector to assist students to develop a renewable energy project; as well as Gullen Range Wind and Solar Farm, Crookwell 2 Wind Farm, GoTerra, Pearson Engineering, Cullerin Wind Farm and Woodlawn Bioreactor.

Students designed a prototype or working model and looked at global issues, like climate change.

"Using solar panels, solar cars, wind technology, and software, students presented working models that included a solar-powered esky, a solar reflective barbeque, a hydro-powered submarine, and a solar-powered boat," Ms Staff said.

"As well as a prototype or working model, students also needed to design an advertisement to sell their idea."

She said the projects were diverse and creative.

"Renewables are a topical issue at the moment and will continue to be well after these students leave school.

"Hopefully this project has helped to plant the seed and encourage some to pursue a career in STEM or even renewable energy."

This year, the project was introduced at Mulwaree High School, Wollondilly and Bradfordville Public Schools in Goulburn.

Special guests included Upper Lachlan Shire Council mayor John Stafford, Derek Powell from Gullen Range Wind and Solar Farm, Ben Pearson from Pearson Engineering and Geoff Llyod from Cullerin Wind Farm.