TAN ETF is basically this if you think about it

Check with your public power company they are the only ones that let you buy into a solar farm you will never see that from a private company which is nearly all of the solar/wind mega's.

Putting panels on your roof is not an investment it's power freedom from serge pricing models. It's a home not an investment.

Look into community solar: https://www.energy.gov/eere/solar/community-solar-basics

Or virtual power plants.

Or at bigger scales, you can invest in commercial solar companies or engage in carbon trading. It's all a bunch of intertied markets.

You can buy stock in a solar "yieldco", which is exactly this. It holds the assets of solar farms and pays out the cashflows. There were a lot circa 2018, I believe Brookfield bought up a bunch, so there may be fewer options now.

Have you thought about building a Solar CRM?

For most investment vehicles, $10k is not worth interacting with and investors with only $10k is unattractive because of the expectations such investors tend to have in aggregate.

Good luck.

Many utilities do pay divadends.