Arizona

Geothermal

Geothermal energy gets boost from new coalition of Western governors

Arizona, Colorado, New Mexico, and Utah are joining forces to accelerate deployment of clean, around-the-clock geothermal energy in the region.

By Maria Gallucci .

21 May 2026

Steam from four towers of a geothermal plant on a grassland plain with mountains in the distance — Steam rises from the cooling towers of the Blundell Geothermal Power Plant, in Utah. (Jon G. Fuller/VW Pics/ Universal Images Group via Getty Images)

Virtual power plants

As utility costs rise, can ‘background’ smart thermostats offer relief?

Millions of smart thermostats auto-adjust temperatures to cut power bills or prioritize clean energy. Some utilities are mulling how that tech can help the grid, too.

By Jeff St. John . 20 April 2026
Clean energy

Arizona cuts key renewables policy as clean energy market takes off

Regulators said ending the state’s renewable portfolio standard would save customers money, but the official economic analysis undermines that assertion.

By Julian Spector . 31 March 2026
Batteries

Which states have the most grid batteries?

California and Texas continue to lead the way on utility-scale storage, but the sector is growing rapidly in Arizona thanks to the state’s abundant solar.

By Dan McCarthy . 13 March 2026
Energy storage

Kore Power has a new plan after canceling $1.2B battery plant in Arizona

Amid political chaos, the company ditched long-simmering efforts to build a factory from scratch. Now, it’s hunting for an existing plant where it can set up shop.

By Julian Spector . 7 February 2025
Politics

Republicans sweep key utility regulator races in Arizona and Louisiana

Public utility commissions hold significant sway over state energy systems. Clean energy advocates failed to break through in elections this year.

By Julian Spector . 7 November 2024
Politics

Clean energy is on the ballot in these utility regulator races

Ten states elect their public utility commissions, which make big decisions about energy. This November, the stakes are high, especially in Arizona and Louisiana.

By Julian Spector . 25 October 2024
ENN

Hualapai Tribe fights to extend ban on lithium drilling it says jeopardizes a sacred site

A federal judge granted a temporary ban, and will rule soon on stopping drilling until a lawsuit is resolved

By Shondiin Silversmith . 20 September 2024
ENN

Coal ash crackdown continues as EPA denies extensions for six power plants

The move signals the agency’s commitment to enforce 2015 federal rules that had been widely flaunted by companies and ignored by regulators.

By Kari Lydersen . 25 January 2023
ENN

How governors races may change energy, from EVs to renewables

Closely contested races in Pennsylvania, Arizona, Georgia and Florida will determine the future of emissions reduction pledges and clean energy development.

By Miranda Willson . 8 February 2022
ENN

Arizona lawmaker takes aim at policy barring campaign contributions by utilities

Arizona's Legislative Council suggested the state's utility regulator may have overstepped its authority by preventing its elected members from taking campaign contributions from utilities

By Jeremy Duda . 12 October 2021