The Colorado mountain town was already more than 75 percent along in its goal and achieved the full transition Thursday when it signed a contract with a wholesale energy provider.

The goal of 100 percent renewable energy was stated in the city's Canary Initiative that was launched 10 years ago.

Burlington, Vermont  and Greensburg, Kansas  were the first two cities to go to 100 percent renewable energy.

Read more about renewable energy here.

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Tracy Woodard from InTown Cares (left) and Lauren Hopper from Mercy Care organization work with residents at the Copperton Street encampment in August 2024. 
(Miguel Martinez / AJC)

Credit: Miguel Martinez