The Energy Communities Repository and the Rural Energy Community Advisory Hub are two new initiatives by the European Commission to support energy communities - much like the EU islands secretariat, but with a focus on energy communities. As part of their activities, both initiatives offer technical assistance to starting and established energy communities. Their calls for applications are open now, with two cut-off dates: 31 October and 31 December 2022.
If you're an urban energy community, apply with the Energy Communities Repository
If you're a rural energy community, apply with the Rural Energy Community Advisory Hub
(If you're not sure which category you fall under, both initiatives have a description of the criteria for rural & urban on their website)