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In a move to promote more sustainable energy practices in the state, Arizona public utility regulators announced new policies on October 22, 2025, that will require all public utilities to increase their use of renewable energy sources. The Arizona Corporation Commission, which oversees the regulation of utilities in the state, approved a set of rules that will push utilities to reduce their reliance on fossil fuels and invest in clean energy technologies.Under the new regulations, public utilities will be required to obtain at least 50% of their electricity from renewable sources by 2030. This is a significant increase from the previous mandate of 15% by 2025. Additionally, utilities will need to develop plans to achieve 100% clean energy by 2050.Commissioner Sandra Kennedy, who proposed the new regulations, emphasized the importance of transitioning to renewable energy in order to combat climate change and reduce air pollution. "We have a responsibility to future generations to create a more sustainable energy future," she said. "By increasing our use of renewable energy sources, we can reduce our carbon footprint and protect the environment for years to come."In response to the new policies, several major public utilities in Arizona have announced plans to invest in solar and wind energy projects. Arizona Public Service, the state's largest utility, pledged to triple its solar energy capacity and expand its wind energy portfolio. Tucson Electric Power also committed to increasing its renewable energy investments and accelerating the retirement of its coal-fired power plants.Environmental groups have praised the Commission's decision to prioritize renewable energy, citing the potential benefits for both the environment and the economy. "Transitioning to clean energy will create jobs, stimulate economic growth, and improve public health," said Michael Brune, Executive Director of the Sierra Club. "We commend Arizona for taking this important step towards a more sustainable future."The new regulations are set to go into effect immediately, with utilities required to submit their renewable energy plans to the Commission for approval within the next year. Arizona joins a growing number of states across the country that are setting ambitious clean energy goals in an effort to reduce greenhouse gas emissions and combat climate change.