If you can navigate this site, just turn on translation in the browser, naf does testing in summer and winter. Here's results from 2022: https://www.naf.no/elbil/bruke-elbil/test-rekkevidde-vinter-2022
2024 here: https://www.naf.no/elbil/elprix-nytt/elprix-vinter-2024
Most gas stations are rebranding to energy stations and swapping out fuel pumps for ev fast charges