In my local municipality I have no way to choose renewable energy apart from building my own power plant on my roof. That’s a complete failure of these government granted monopolies.
Which is a curious statement: why would a electrical utility want people to use less electricity?
The reason is because the regulatory agencies created incentives within the regulatory framework to encourage them to do it. Basically the regulators start with an outcome, bake that outcome into how utilities get paid, and then let the utility innovate to figure out how to do it. This led to meaningful reduction in energy usage across many markets.
You can learn more by looking into Demand Response programs and Demand Management programs around the country.