Two groups from Fitzroy School won the Aggregate and Quarry Association (AQA) Rock our Future schools competition.
The groups, called Little Eggs Inc group and Storm Industries, designed a quarry that could operate on renewable energy.
AQA ran the competition to mark their 50th anniversary.
AQA chief executive Wayne Scott says the entries from the Little Eggs Inc group and Storm Industries were the stand outs in the competition.
"They needed to generate 20,000 kilowatts an hour of power to run a quarry. Both proposed using solar, wind and water turbine power.