The power co is building solar farms, because frying birds and collecting green credits makes their ESG hard.
So, they give you the option to pay into the solar farm. The plan my company had was also stupid but like tipple stupid...
1) you paid into the construction - forever - so, I guess construction AND maintenance - for like 10$ a month - 0 promise of a return, so its just a 10$ a month addition
2) you paid a % of a credit - so a credit counts for $100 of electricity you pay $50 you get half of that credit - I think there is some really lame multiplyer like 1.1 or 1.25 - so lets say you buy a complete credit for 100$ you could get back 110 or 125 in your actual bill credit...IF...
3) the power generated by the solar farm only produces the credits you can buy or invest in, AFTER it "covers" the cost of operating the plan and farm
4) Credits generated (after that random number) then are distributed by average... so 100 people bought 100 credits, and 50 credits were produced, so that 50 credits is spread across the 100 people as half credits.
so, if you bought 1 full credit for 100$, you pay monthly 110$... and the MOST you could get is 110 or 125 or whatever the ratio was. The program was completely stupid.
oh, but you get a little new box on your bill that tells you how many green solar credits you get, so I think lefties use that like porn? so I suppose there is some value out there to someone.