In the United States, the transition towards a clean energy matrix has ceased to be an aspiration and has become a tangible reality. Although still few, some cities have managed to supply all their electricity demand with renewable sources such as solar, wind, hydroelectric, and biomass.
This change not only reduces greenhouse gas emissions but also improves air quality, strengthens the local economy, and positions these communities as leaders in the fight against climate change.
More than 180 American cities have committed to achieving 100% clean electricity. While some have already achieved it, others are advancing with firm policies and innovative projects.
The pioneers of 100% renewable
Currently, three cities operate entirely on renewable energy:
Burlington, Vermont
- First city to achieve it (2014).
- Uses a combination of local biomass, hydroelectric, wind, and solar.
- The McNeil Generating Station uses sustainable wood, while the Winooski One hydroelectric plant was acquired with a USD 12 million bond.
- Has not increased energy rates in eight years, ensuring clean and affordable electricity.
- Complements its model with charging stations for electric vehicles and urban resilience programs.
Aspen, Colorado
- Has been operating with 100% renewable energy since 2015.
- Mainly supplied by hydroelectric plants, wind farms, and landfill gas.
- Promotes energy efficiency with incentives for heat pumps and building improvements.
- The Ridgway hydroelectric plant provides an additional 8 MW of clean energy.
- Its model combines sustainability with the protection of natural resources, key for a tourist city.
Rock Port, Missouri
- First locality to cover all its demand with wind energy.
- Takes advantage of the region’s abundant winds through local wind farms.
- Community leadership reduced fossil dependency and generated jobs in the renewable sector.
- An example of how even small communities can achieve energy self-sufficiency.
Other cities on the way
In addition to the pioneers, several cities are moving towards 100% renewable:
- Greensburg (Kansas): rebuilt its infrastructure after a natural disaster with efficiency criteria.
- Denton (Texas): combines wind energy with a natural gas plant to stabilize prices.
- San Francisco and San Diego (California): expanding solar and wind projects with total supply goals.
- Seattle (Washington): bets on hydroelectricity and electrification in transportation and buildings.
- Honolulu (Hawaii): integrates solar, wind, and marine energy with the goal of self-sufficiency by 2045.
The cases of Burlington, Aspen, and Rock Port demonstrate that the energy transition is possible and replicable. These experiences reinforce the idea that committed local management, investment in renewable resources, and technological innovation can radically transform the energy matrix.
The movement towards 100% renewable cities is not only a step against climate change but also an opportunity to build more resilient communities, with strengthened local economies and a better quality of life.
