Arizona

Demolition of the Navajo Generating Station, a 2,400-MW coal-fired power plant that generated electricity for several cities in the U.S. Southwest, continued Dec. 18 as explosions brought down the facility’s three large smokestacks. The plant was closed in November 2019. The NGS, located near Page, Arizona, is being demolished by Salt River Project (SRP). The […]

It’s a rite of spring for the U.S. nuclear power industry. Plant operators schedule refueling outages, taking a reactor offline not only to refuel but also to perform repairs or other maintenance, and facility upgrades. It’s a task made more problematic this year, as social distancing and travel restrictions brought on by the COVID-19 pandemic […]

Arizona Public Service (APS) announced Jan. 22 that it plans for all its power generation to be carbon-free by 2050, and also said it plans to produce nearly half its power from renewable sources by 2030. APS joins other U.S. utilities who have put forth similar goals in recent years. APS, which has been criticized […]

The 2,250-MW coal-fired Navajo Generating Station (NGS) in Arizona will permanently close likely this week, ending a long and bitter fight to keep the plant and its affiliated coal mine open. The plant’s utility owners—Salt River Project (SRP), Arizona Public Service Co., Tucson Electric Power Co., and NV Energy—in February 2017 voted to shut down […]

TEMPE, Ariz., July 30, 2019 — US-headquartered First Solar, Inc. (FSLR) today announced that its Sun Streams 2 photovoltaic (PV) solar plant will power new energy-efficient datacenters being built by Microsoft Corp. in Goodyear and El Mirage, Arizona. The 150-megawatt (MW)AC facility, is being developed and constructed by First Solar in Maricopa County and will […]

Demand growth for natural gas for power generation may have slowed in the U.S., as renewable resources continue to take market share. With U.S. production continuing to hit record highs, and new gas-fired

After a Navajo tribal council on March 21 voted 11–9 to block acquisition of the Navajo Generating Station (NGS) and Peabody Energy’s Kayenta coal mine, the Navajo Transitional Energy Co. (NTEC) announced it would drop its bid to keep the 2.3-GW coal-fired plant near Page, Arizona, open.  NTEC, a company wholly owned by the Navajo […]

Arizona’s largest utility wants to support its renewable power portfolio by adding as much as 850 MW of battery storage capacity to its solar power plants by 2025. Arizona Public Service Co. (APS) made the announcement February 21. Don Brandt, the utility’s chairman and CEO, in a statement said, “Arizona is already a national leader […]

The midterm elections yielded mixed results for power-related matters across the U.S. Voters in Arizona shot down a measure that would have expanded the state’s renewable portfolio standard (RPS) to 50% by 2030, but voters in Nevada overwhelmingly backed a similar measure, adding it to a growing list of states that have sought 50% RPS […]

The companies negotiating to purchase the largest coal-fired power plant in the southwestern U.S. have ended their pursuit, which means the 2,250-MW Navajo Generating Station (NGS) near Page, Arizona, remains scheduled to close by year-end 2019. Avenue Capital, a New York-based global investment firm focused on distressed assets, and Chicago-based Middle River Power on September […]

Palo Verde is the largest nuclear-generating site in the U.S. It has three of the five largest nuclear units in the country, with each pressurized water reactor licensed at almost 4,000 MWth. Like many plants

Two planned solar projects in Nevada would be the first in that state to include battery storage, part of an increasing trend toward such projects to help mitigate issues with integrating renewable energy into the larger transmission grid. Both projects are scheduled to begin construction next year pending regulatory approval, with the Bureau of Land […]

The Navajo Nation on July 12 said it has identified a potential buyer for the 2,250-MW Navajo Generating Station (NGS) in Arizona, the largest coal-fired power plant in the western U.S. The Navajo Nation Council, in a joint news release with the Navajo Nation’s Office of the President and Vice President, said the Hopi Tribe […]

While 29 states and the District of Columbia currently have Renewable Portfolio Standards (RPS)—goals for power producers to provide a certain amount of power from renewable sources by a specific date—a growing number of states are also instituting standalone targets and mandates for energy storage procurement. Sources: Energy Storage Association, North Carolina Clean Energy Technology Center, Lawrence Berkeley […]

A 200-MW solar power plant is being planned at a 2,000-acre site near Warner Robins, Georgia, a project that at present would be the largest standalone solar facility in the U.S. Southeast. First Solar, a Tempe, Arizona-based global provider of photovoltaic (PV) systems, announced the project on February 21. The plant already has a power […]

50-MW solar plus storage facility will serve APS customers during hot summer months PHOENIX–(BUSINESS WIRE)–Two homegrown leaders in renewable energy, Arizona Public Service and First Solar (Nasdaq: FSLR), are bringing a first-of-its-kind 50-megawatt (MW) solar-fueled battery to the desert to provide clean power to Arizonans on hot summer days. This project will make Arizona home […]

Peabody Energy on October 2 said several investors are interested in taking over the Navajo Generating Station in Arizona, a coal-fired power plant on tribal land whose current owners, including Salt River Project (SRP), voted earlier this year to close the facility. Peabody’s Kayenta Mine supplies fuel for the plant. Lazard Freres & Co., a […]

A coal-fired power plant in northeastern Arizona can continue operating until at least the end of 2019 after the Navajo Nation Council approved a lease extension for the facility. The three Arizona utilities and one Nevada utility that own the plant along with the federal Bureau of Reclamation had said in February 2017 they would […]

The utility owners of the Navajo Generating Station (NGS) in Arizona have voted to shut down the 2,250-MW coal-fired power plant in December 2019. The decision to close the plant on tribal land near Page along the border with Utah was based on the “rapidly changing economics of the energy industry,” which has seen natural […]

IRVINE, Calif., Oct. 13, 2016 /PRNewswire/ — Vasari Energy, Inc. a California based solar energy provider, signed a contract to purchase 450 acres of land in Maricopa County, Arizona for the development of a project with up to 68 MW of solar power. The project will be developed through Sonoran Solar Development Partners, LLC, a wholly […]

HERNDON, Va.–(BUSINESS WIRE)–Greensmith Energy, the leader in energy storage software and integration services, announced it will partner with E.ON Climate and Renewables and Tucson Electric Power (TEP) to design and deliver a grid-scale energy storage system located at the University of Arizona Science and Technology Park southeast of Tucson. The 10 megawatt (MW) site will […]

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