Here are some sources. You can also run your own study yourself by just googling "average kwh price nuclear" and "average kwh price wind" and see how it looks. You can also google "average co2 eq emissions total lifetime nuclear" and likewise for wind/solar PV.

2022 Electricity ATB Technologies and Data Overview, annual technology baseline:

https://www.dw.com/en/fact-check-is-nuclear-energy-good-for-the-climate/a-59853315

Mycle Schneider, author of the World Nuclear Industry Status Report: "Nuclear power plants are about four times as expensive as wind or solar, and take five times as long to build. When you factor it all in, you're looking at 15-to-20 years of lead time for a new nuclear plant."

Differences in carbon emissions reduction between countries pursuing renewable electricity versus nuclear power, published in nature energy: "We find that larger-scale national nuclear attachments do not tend to associate with significantly lower carbon emissions while renewables do. "