Green firms installed renewable energy systems in Cornwall capable of providing enough power for hundreds of houses in the past year.
The systems can supply one megawatt of energy, enough power for 350 homes or about 1,000 people, says the Cornwall Sustainable Energy Partnership.
There are 14 local renewable energy companies in the region.
They include manufacturers of small wind turbines, solar panels and ground source heat pumps.
CSEP supports local renewable energy businesses in the region.