Details of the event on Sunday are available in Project Dirt’s latest newsletter.
Other features include Truro and Falmouth Green Open Homes day (all next week) when people in Truro and Falmouth and places in between will be opening their homes to show what energy improvements they have made.
There will be a variety of homes, from eco houses to those who have made simple DIY improvements.
There is also a carbon neutral business and an experimental building on a university campus.
See more detail here.