Ripple Energy (https://rippleenergy.com/) in the UK are offering exactly that, but with Wind Farms. You buy into a cooperative that builds and owns the wind farm. The generated energy is sold back to your utility and taken off you energy bill. It's very much like having local renewable generation, but can be used by those like me who live in an apartment and have no way to install solar.

Many power companies offer the option to pay a bit extra each month to be supplied 100% renewable energy

This is often not as impressive as it seems.

I was paying extra for green energy from my local power utility (ENMAX) and it turns out, by green they meant they were burning biomass and using some form of carbon offset for it at the time I was paying. (https://www.enmax.com/home/electricity-and-natural-gas/easym...)

That's greenwashing and I won't have any of it.

I am getting panels put in this year; for some people that isn't an option.

I mean that sounds a lot like investing in solar to me...