So far we've got an email list of ~150 (mainly London based) tech workers who are passionate about the environment. We've also sent out jobs for companies such as https://therestartproject.org, https://www.openutility.com and http://opentrv.org.uk.
I've published charts of the skill breakdowns (both sides) on the project's Twitter profile: https://twitter.com/CleanwebJobs
Questions, comments and ideas more than welcome!