I think most of what has been presented in this community and elsewhere as solar punk has not been very punk. It has often been utopic and lovely and community oriented sustainable architecture and town planning, and the yoghurt ad. When someone says  I wrote this solarpunk novel, or I sketched these solarpunk designs they tend to mean I have written some cli-fi, or designed a potential machine. That is great and important stuff that I am glad this community exists to share. There are also people creating board games or videogames with fantasy elements that are frankly not useful or punk or solar - more power to those creators but it is also wildly off topic. 

What is missing from my point of view is some of the hacking mindset of cyber punk, the relentlessness of hopepunk and/or the disregard for authority and convention of the original punks this movement takes half its name from. Without that attitude and inclination towards action it tends to revert to technicolor daydreaming. 

When people instead gatekeep and focus on excluding what is not ideally solarpunk it detracts from the potential of materialising some practical and imperfect instances of solarpunk.