I've been using this approach myself, albeit manually, with ChatGPT. I first ask my question, then open a new chat and ask it to find flaws with the previous answer. Quite often, it does improve the end result.
When I searched, none of the electricity providers included nuclear energy in their list. I tried doing some research and found this definition for the European Environment Agency: "Electricity produced from resources such as solar, wind, geothermal, biomass, and low-impact hydro facilities is often referred to as 'green electricity'."
It's good to see as you point out that the situation is evolving. Strategic is better than nothing!
I had a similar realization a few weeks back while trying to purchase a new electricity contract. In the EU, this is made even worse by the definition of green electricity which includes biomass but excludes nuclear energy. For those curious, I wrote up what I found here: https://integralreview.com/green-electricity/