The largest wind farm in US history started operating this month, a massive complex of spinning turbines in New Mexico that will power more than a million homes in the Southwest. SunZia, as it’s called, will be the country’s last landmark wind project for some time. After this year, annual onshore wind power additions are forecast to decline until 2030, according to BloombergNEF. The biggest reason is President Donald Trump’s assault on renewable energy, and wind in particular.