This an independent organisation – working to address the climate emergency. Not a funding source but with links to funding.
Here you will find lots of information as well as tools to help you evaluate your needs, links to funding sources and suggestions for saving money by switching suppliers. It covers not only home improvements but also low carbon travel.
UK Government grant for rural communities
The Rural Community Energy Fund (RCEF) is a £10 million programme which supports rural communities in England to develop renewable energy projects, which provide economic and social benefits to the community. A scheme has been revamped from 2019 and grants are available of: