I recently signed up for Community Solar through Neighborhood Sun, one of many such organizations around the country.
They sell the customer solar credits from a grid-connected solar farm at 5% less than the regular utility price. They take 80% of your average electric bill to bill you for solar credits. Then they transfer the credits to your regular utility bill so it is lower. Unlike the utility bill, you can pay the solar company with a credit card with no fee.
Since they are selling solar credits, standard utility fees do not apply.
There’s the convenience of automatic payment by rewards cards for much of the bill and contributing to clean energy.
For this project, it’s a three year contract but a guaranteed 5% discount means that’s not much of a concern to me. If you move out of the utility area there is no cancellation fee.
The contract length varies somewhat with the solar project.