Related:

How Bitcoin Contributions Funded a $1.4M Solar Installation in Zimbabwe
#9675
https://www.coindesk.com/business/2022/01/26/how-bitcoin-contributions-funded-a-14m-solar-installation-in-zimbabwe/

Had my eye on this for a while just haven’t pulled the trigger. Is their a minimum investment?

This is a really cool project. The returns are pretty good, ~3x in 20 years on this project for instance https://thesunexchange.com/project/karoo-fresh (which beats a 5% return annually), and it's a noble cause.