Arizona

Through a first-of-its-kind program, inverters improve overall reliability for customers This week, hundreds of APS Solar Partner Program customers will help their utility make history. Advanced technology installed along with participants’ solar panels is beginning to collect data that will help APS better understand and manage the energy flowing into neighborhoods across the state. APS […]

Thirteen states are suing the Environmental Protection Agency (EPA) and the U.S. Army Corps of Engineers over the recently finalized Clean Water Rule, which they say illegally puts the federal government in charge of a majority of water and land resources in the U.S.  North Dakota, Alaska, Arizona, Arkansas, Colorado, Idaho, Missouri, Montana, Nebraska, Nevada, […]

Several Arizona and New Mexico–based utilities will be required to install pollution controls at the coal-fired Four Corners Power Plant to curb sulfur dioxide (SO2) and nitrogen oxide (NOx) under a settlement reached with the Environmental Protection Agency and the Justice Department. The settlement involves the Arizona Public Service Co. (APS), the operator and primary […]

The Palo Verde Nuclear Generating Station led the U.S. in electrical generation in 2014, as it has done for 23 consecutive years, with a total output of 32.3 million MWh. That bested its previous record set in 2012. The Palo Verde plant is located about 45 miles west of Phoenix, Ariz. (Figure 5). It has […]

Regulators from six states shared starkly different views on the Environmental Protection Agency’s (EPA’s) proposed carbon rules for existing power plants at a House hearing on Tuesday. Some state-level officials said the EPA’s overall emission targets and suggested means to achieve them are based on unworkable and unrealistic assumptions about how state and regional power […]

A make-shift explosive device found last week at a power plant south of Tucson, Ariz., caused a small, temporary fuel leak in a 50,000-gallon distillate oil tank—not a large explosion as previously reported in initial accounts.  However, the incident has triggered investigations by the FBI, the U.S. Bureau of Alcohol, Tobacco, Firearms, and Explosives, and […]

By 2029, renewable sources in Arizona’s energy mix will double and natural gas’s share will surpass coal’s and nuclear’s, the state’s largest utility, Arizona Public Service (APS) projects in its newly released “Integrated Resource Plan.”  The report, which foresees that the state’s energy needs will grow 52% while peak demand will surge 60% compared to […]

Owners/operators: Sempra U.S. Gas & Power and Consolidated Edison Development Courtesy: Sempra U.S. Gas & Power California has been pursuing renewable generation since enactment of its Renewable