Biggest ever US clean energy project is complete after nearly two decades

The largest clean energy project in U.S. history, known as SunZia, has finally become fully operational after almost 20 years of development. The $11 billion project combines a massive wind farm with a 550-mile transmission line, delivering electricity from New Mexico to Arizona and California. [reuters.com]
With a capacity of 3,650 megawatts, SunZia can supply power to around one million homes and is significantly larger than any other wind project in the country. [reuters.com]
The project faced long delays due to complex permitting processes and regulatory challenges before construction began in 2023. Its completion highlights the growing demand for electricity in the U.S. and the need for both renewable energy production and improved infrastructure to deliver power efficiently. [reuters.com]
However, the milestone comes at a time when political priorities are slowing the approval of new renewable energy projects, sparking debate about how quickly the U.S. can expand clean energy in the future. [reuters.com]
Overall, SunZia is seen as a major achievement, proving that large-scale clean energy infrastructure is possible—but also showing how long and complicated the process can be.