Apologies for the delayed reply. I wanted to follow up and see if I could be of any help. I found an article with more details on Nest Renew. Please let me know if you have any questions from here, as I would be happy to take a closer look and assist you further.
That article talks about Nest Renew and how Google buys Renewable Energy Credits (RECs). It has nothing to do with the question, which was "I have solar panels on the house and how does this affect the information that Renew collects?"