First, thanks to Richard and the team for setting up this forum - so many good ideas!
I wondered if we might look at whether the village hall or village shop could possibly have solar panels or other renewables installed. Need to protect the character of buildings of course. But it would contribute to reducing carbon emissions and, for an initial capital outlay, reduce energy bills. Generally, I think these things tend to pay back in 6-8 years.
Hopefully a helpful suggestion.