Amy Dominguez


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Press Releases


Arizona Utilities APS and TEP Extend Risky Reliance on Coal and Gas in 2023 Plans

PHOENIX, AZ – Today Sierra Club filed its comments with the Arizona Corporation Commission (ACC) regarding the 2023 Integrated Resource Plans (IRPs) of Arizona Public Service Company (APS) and…

In Disappointing Ruling, Maricopa County Superior Court Upholds ACC’s Approval of Coolidge Gas Plant Expansion

Phoenix, AZ -- In a disheartening verdict, today the Maricopa County Superior Court ruled to uphold the Arizona Corporation Commission’s (ACC) decision to approve Salt River Project’s (SRP) revised…

Guadalupe School Secures Federal Funding for All Electric School Bus Fleet

Salt Lake City, UT – In a win for west side students, community members, and clean air advocates, this Tuesday, the Guadalupe School was awarded funding for four electric school buses as part of the…

ACC Approves Major Expansion of Gas-Fired Power Plant without allowing any Public Comment

Phoenix, AZ – Today, in an egregious move that undermines public process and transparency, the Arizona Corporation Commission (ACC) approved a major expansion of Arizona Public Service Company’s…

Public Service Commission Limits Rocky Mountain Power’s Rate Increase and Maintains Cost Sharing Mechanism for Volatile Fuel Costs

Cheyenne, WY – The Public Service Commission (PSC) orally announced today its decision on Rocky Mountain Power’s proposed rate increase. A written decision is expected to follow.The PSC’s…

Rocky Mountain Power Rate Case Hearing Wraps Up After Significant Public Input

Cheyenne, WY – After months of feedback from concerned Rocky Mountain Power customers opposed to the utility’s unprecedented rate hike, yesterday marked the conclusion of the Public Service…

Clean Energy Advocates Fight for Utah’s Clean Energy Future

Salt Lake City, UT – Today clean energy advocates convened at the Public Service Commission (PSC) to spotlight how Rocky Mountain Power continues to slow its transition to clean energy at the…

SRP’s Approved Integrated System Plan Prolongs Fossil Fuel Dependence, Igniting Climate Concerns

TEMPE, AZ -- Today the Salt River Project (SRP) Board of Directors voted to approve its Integrated System Plan (ISP) strategies which will guide how the utility plans to generate its power. These…

Lawsuit Targets State of Utah for Failing to Protect the Great Salt Lake

SALT LAKE CITY, UT — Conservation and community groups sued the state of Utah today for its failure to ensure that enough water reaches the Great Salt Lake to prevent ecological collapse.Upstream…

Sierra Club Files Suit Challenging Arizona Corporation Commission’s Approval of Coolidge Gas Plant Expansion

PHOENIX, AZ -- Today, Sierra Club filed a suit in Maricopa County Superior Court challenging the Arizona Corporation Commission’s (ACC) decision to approve Salt River Project’s revised proposal to…