science.howstuffworks.comAre Any U.S Cities Running Completely on Green Energy? Just 3
Grant VirellanIt's no surprise that Colorado is home to one of the cities to run on 100 percent renewable energy. jdross75 / Shutterstock
The shift toward U.S. cities running completely on green energy is no longer theoretical.
Across the country, cities are proving that renewable energy sources like wind power, solar energy, and hydroelectric power can reliably generate electricity at scale while cutting carbon emissions.
These efforts reduce greenhouse gas emissions, improve air quality and move communities toward a clean energy future. As renewable energy production grows, cities are building a sustainable energy future powered by renewable resources instead of fossil fuels.
1. Greensburg, KansasGreensburg rebuilt after a major storm with a focus on clean energy projects and green energy. The city now features energy-efficient buildings and renewable electricity systems.
Its recovery plan emphasizes net-zero energy, sustainable development, and reduced environmental impact.
2. Denton, Texas
Denton sources power from several wind farms, making wind energy a major part of its energy production. Denton's power supply also includes a natural gas facility that the city describes as a critical component of its portfolio.
The city says its natural gas facility helps insulate customers from wholesale market price spikes.
3. San Francisco, California (Municipal Operations)
San Francisco powers its municipal operations with 100 percent renewable energy. This includes city buildings, transit systems and other public infrastructure.
The city continues expanding solar capacity through rooftop solar panels and utility scale solar development. These efforts help reduce carbon emissions and improve air quality.
4. Chicago, Illinois (Municipal Transition)
Chicago has shifted its city buildings to renewable electricity through large-scale energy projects. This move significantly reduces greenhouse gas emissions.
The transition supports a cleaner energy system while advancing climate solutions and improving overall air quality.
5. Seattle, Washington
Seattle relies heavily on hydroelectric power and continues to expand its renewable energy portfolio. The city is working toward carbon neutrality and a carbon free electricity system.
Investments in electric vehicles, energy efficiency, and renewable power strengthen its long-term sustainability goals.
6. Minneapolis, Minnesota
Minneapolis has committed to reaching 100 percent renewable electricity by 2030. The city promotes rooftop solar panels and partnerships with electric utilities.
Its policies support renewable portfolio standards and reduce greenhouse gas emissions across municipal operations.
7. San Diego, California
San Diego has set a goal to achieve 100 percent renewable energy by 2035. The city is expanding solar farms, offshore wind opportunities, and clean-energy projects.
Its strategy focuses on reducing carbon emissions, improving energy efficiency and building a resilient energy system.
8. Honolulu, Hawaii
Honolulu aims for 100 percent renewable energy by 2045 using solar radiation, wind turbines, hydroelectric power and ocean-based energy sources.
Its renewable energy development reflects the need for sustainable energy solutions in island environments with limited natural resources.
Across the United States, more than 180 cities have committed to transitioning to 100 percent renewable electricity. Growth in renewable energy production—supported by wind and solar technologies—continues to reshape the country’s electricity supply.
Renewable energy already makes up a significant share of the country’s electricity, and continued investment in solar development, wind farms and clean energy infrastructure will help cities achieve carbon neutrality and reduce their environmental impact.
9. Georgetown, Texas
Georgetown signed long-term contracts for wind and solar power for its municipal utility, but the city later reported that it no longer used the 100 percent renewable designation and remained exposed to natural gas and power-market risk.
The city council prioritized price stability and environmental impact. Georgetown's long-term contracts were intended to provide price stability, but city records show Georgetown remained exposed to commodity market price risk.
We created this article in conjunction with AI technology, then made sure it was fact-checked and edited by a HowStuffWorks editor.
