UK gov may give in to housebuilders on mandatory #solar. It needs a combination of rules and incentives. Homeowners will save in the long run and if it's standard then it will be no big deal. Do any countries have such rules for new builds?

https://www.theguardian.com/environment/2024/oct/23/labour-considering-weaker-rules-on-solar-panels-for-new-homes-in-england