What are ways Renters (of a house) can get into alternative energy?

https://lemmywinks.com/post/48440

What are ways Renters (of a house) can get into alternative energy? - lemmywinks.com

Are there portable wind turbines and/or solar panels I can put up in my very bright dusty back yard?

You probably can’t get anything that properly powers your house because that would need to connect to the grid, but there are small solar arrays you can get for stuff like camping or boats which could probably power some devices. Might have to be via a battery as I suspect the output is variable.
So a camping set up moving to a battery that I can charge smaller things like phones off of?