State utility regulators on Thursday invited the top executive of Arizona Public Service to answer questions at next month’s Arizona Corporation Commission meeting with the clear implication that, if he doesn’t come willingly they, will force the issue.

Customers of the state's largest electric company are apparently stuck with the bills they're getting now, at least for the foreseeable future.

With three seats open and five Republicans already filed to run who have ties to Arizona Public Service, the Arizona Corporation Commission is shaping up for a big election in 2020. Kim Owens, the latest Republican candidate to jump into ...

The newest state utility regulator wants an outside investigation of the heat-related death of an Arizona Public Service customer and the policies of the Arizona Corporation Commission and the actions of its staff that may have contributed to that.

The Arizona Corporation Commission voted to require electric companies to give those who fall behind up to four months after Oct. 15 to repay their outstanding balance. But it bars the utilities from charging interest or late fees.

Taken by surprise by reports that an elderly woman died a heat-related death after her power was cut off last summer, state utility regulators are now moving to curb the ability of electric companies to shut off power during the hottest months of the year.

Gov. Doug Ducey said Monday the Arizona Corporation Commission has been getting into areas beyond its constitutional authority to set utility rates.

The state’s largest electric utility admitted late Friday that it gave $10.7 million to organizations that spent heavily in the 2014 race for the Arizona Corporation Commission, which regulates energy companies.

More than two dozen local elected officials are facing personal fines for their official opposition to a 2018 ballot measure on renewable energy.

State utility regulators are making another bid to find out how much money the state's largest electric utility is spending on political campaigns and lobbying.