An interesting question is whether the need for sustainable buildings will ever create an authentic solarpunk aesthetic. I notice various new apartment buildings now featuring green glasses (e.g. in balconies) for that entirely fake feel good factor. On the other hand new materials for insulation, new (old) techniques for cooling etc. certainly give enough ideas. There is even a new european bauhaus :-) [1]

[1] https://new-european-bauhaus.europa.eu/index_en