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APS Solar Installation Slated for Sedona (Ind. Report)
APS Solar Communities
Date: 2019-12-11
In Arizona, the Sedona City Hall reports it will host a 150 kilowatt solar system under the Arizona Public Service's (APS) Solar Communities program that is expected to save the city roughly $90,000 and produce clean energy over the next 20 years.

APS will install, operate, and maintain the city's solar photovoltaic system free of charge, and the city will receive a monthly bill credit from APS. The program, which is designed to enable non-residential customers as well as limited- and moderate-income customers take advantage of clean solar energy. The project is scheduled for completion in late January. (Source: City of Sadona, APS Solar Communities, Signals AZ, Dec., 2019) Contact: City of Sedona,; APS, Solar Communities;,

More Low-Carbon Energy News Solar,  APS Solar,  Community Solar,  

Green Valley News Comments on Arizona Energy Efficiency Standard (Opinions, Editorials & Asides)
Energy Efficiency
Date: 2019-05-13
With the approaching demise of Arizona's Energy Efficiency Standard, the Arizona Corporation Commission should note that from 2010-17, every $1 of ratepayer money invested in energy efficiency by Arizona Public Service and Tucson Electric Power returned about $4 in benefits to ratepayers. The Standard also helped reduce water consumption and contributed to job creation.

The standard set aspirational yet rational requirements incorporating annual benchmarks and establishing accountability measures such as implementation plans. As the Commission deliberates its next steps on energy efficiency, here are a few considerations commissioners should keep in mind:

  • A strong standard will accomplish more than a goal. In large part, the reason Arizona's Energy Efficiency Standard has worked is due to requirements the Commission placed on utilities. Without a Standard, it is unlikely Arizona's utilities would have significantly increased the use of energy efficiency resources.

  • Arizonans support energy efficiency. According to an energy poll released earlier this year, 68 pct of those polled agree that regulations applied to utility providers, such as Arizona Public Service, Tucson Electric Power, UNS Energy Corporation, or Salt River Project should be increased to ensure they are offering energy efficiency to all their customers.

  • The recent trend among state policy makers and utilities in the Southwest is a shift to increased energy efficiency commitments. Just like it is realistic and no longer visionary to send a man (or a woman) to the moon; it is realistic and no longer visionary to increase Arizona's Energy Efficiency Standard.

    For the sake of ratepayers, air quality and public health, the Commission should vote on May 22 to advance Arizona’s Energy Efficiency Standard to at least 35 pct by 2030. (Source: Green Valley News, 12 May, 2019) Contact: Arizona Corporation Commission, (602) 542-3026,

    More Low-Carbon Energy News Energy Efficiency,  

  • APS Testing Woody Biomass for Power Generation (Ind. Report)
    Arizona Public Service
    Date: 2019-04-08
    Following up on our Mar. 23rd coverage, in Phoenix, Arizona's largest utility Arizona Public Service (APS) Co. reports it plans to convert its coal-burning Cholla Power Plant near Holbrook to burn woody biomass waste and pine wood chips. The test conversion is intended to address the potential loss of jobs occasioned by an expected 2025 shutdown of the coal-burning facility to meet environmental-emissions regulations and to help prevent the growing wildfire-forest fire threat.

    After a 60-day test period, AAPS will update the Arizona Corporation Commission regarding whether converting the coal generator to burn biomass would be cost efficient, officials said. According to the US EPA , electricity from forest biomass is carbon neutral and does not contribute to climate change. (Source: APS,, AP. 6 April, 2019) Contact: APS, Barbara Lockwood, VP,

    More Low-Carbon Energy News Arizona Public Service,  Woody Biomass,  Coal ,  

    APS Considers Coal-Fired Plant Conversion to Biomass (Ind. Report)
    Arizona Public Service
    Date: 2019-03-22
    In the Sun Devil State, Arizona Public Service (APS) reports it has advised the Arizona Corporation Commission (ACC) it is evaluating the feasibility and costs involved in the possible conversion of one unit of its 1962-vintage, four-unit coal-fired Cholla Power Plant in Joseph City to burning forest waste woody biomass. The plant is presently slated to close by 2025.

    The initiative is in keeping with the state's renewable energy portfolio and an important factor in forest health. Last December, the ACC ordered their staff to develop a proposed set of rules to create a market for the 1.5 million tons of branches, brush and debris created by thinning 50,000 acres of overgrown forest annually -- the goal set by 4FRI. The ruling provided for the production of 60 MW of power from bioenergy. Presently, only the 28-MW Novo Power in Snowflake produces bioenergy electricity in Arizona. (Source: Arizona Public Service, PR, White Mountain Independent, 22 Mar, 2019) Contact: Arizona Public Service,; Noveo Power,

    More Low-Carbon Energy News Novo Power,  Arizona Public Service,  Woody Biomass,  Forest Biomass,  

    APS Plans 850MW Solar Battery Storage (Ind. Report)
    Arizona Public Service
    Date: 2019-02-25
    US-based electric utility Arizona Public Service (APS) is planning to add battery storage to its fleet of solarpower plants, as well as build solar facilities with storage. As part of the initiative, the company plans to add 850MW of battery storage and at least 100MW of new solar generation by 2025.

    Large-scale solar plants owned by APS across the state will be upgraded with 200MW of battery storage systems. A team from Invenergy, an Illinois-based energy company will install six new battery systems at solar plants in Maricopa County and Yuma by 2020, with the balance to be complete by 2021. The utility is also planning to construct 500MW of solar storage and standalone battery storage by 2025 as part of its long-term clean-energy transition objective. (Source: APS, PowerTech, 25 Feb., 2019) Contact: Arizona Public Service Company,

    More Low-Carbon Energy News Arizona Public Service,  Solar,  Energy Sorage ,  

    APS Plans 1GW Solar, Battery Resources by 2025 (Ind. Report)
    Arizona Public Service
    Date: 2019-02-22
    Arizona Public Service (APS) reports it will add 850 MW of battery storage and 100 MW or more of solar generation by 2025. To that end, APS will equip existing utility-owned solar projects with 200 MW of batteries, deploy 500 MW of new battery resources, and contract for 150 MW of third party-owned storage. This work builds on the dispatchable 50-MW battery and 65-MW solar power project APS is building with First Solar that is scheduled for completion in 2021.

    Initially, APS has selected Invenergy to install 141 MW of new battery systems at six solar sites, with the first expected to begin service by the summer of 2020. The remaining retrofits will be completed by 2021. According to its website, APS expects 15 pct of its electric power mix to be from renewables by 2025. (Source: APS, gtm, 21 Feb., 2019) Contact: APS, Brad Albert, VP Resource Management,

    More Low-Carbon Energy News Arizona Public Service,  Solar,  Battery,  Energy Storage,  

    Arizona Utilities Encouraged to Increase Energy Efficiency Investments (Ind. Report)
    US PIRG, Tucson Electric Power
    Date: 2018-12-12
    With just days before the Arizona Corporation Commission is expected to vote on Tucson Electric Power's (TEP) Demand-Side Management Plan, Tucson business owners are encouraging the Commission to increase investment in energy efficiency. The Arizona PIRG Education Fund and the Southwest Energy Efficiency Project, who have been speaking with business owners across Tucson, are hopeful the Commission will restore and increase energy efficiency funding for TEP ratepayers.

    In a letter to the Commission, three dozen business owners cited the return on investment, the creation of local jobs and reduced energy waste attributed to energy efficiency. According to the letter, since 2010, energy saving programs implemented by TEP and Arizona Public Service Company (APS) deliver approximately $3.90 in benefits for every $1 invested by ratepayers. Additionally, the APs and TEP energy-saving programs have cut energy waste by delivering demand savings greater than eight 100MW peaker power plants. (Source: US PIRG, PR, 11 Dec., 2018) Contact: US PIRG, Aaron Kane (602) 252-9227,; Arizona Corporation Commission,; Tucson Electric Power, (520) 571-4000,; Arizona Public Service Company,

    More Low-Carbon Energy News US PIRG,  Energy Eficiency,  Tucson Electric Power,  

    TEP Warns AZ Clean-Energy Policy Doable but Costly (Ind. Report)
    Tucson Electric Power,Arizona Corporation Commission
    Date: 2018-07-16
    In Arizona, Tucson Electric Power Co. (TEP) is warning that although the state "energy modernization" plan requiring utilities to generate 80 pct of their power from renewable sources by 2050 is doable, it could raise costs for the company and its ratepayers by more than $800 million through 2030, and cause the eventual closure of TEP-owned power generation stations. The higher costs would mainly include an additional $673 million in investments in energy-storage systems and about $53 million for new biomass energy projects.

    The Arizona Corporation Commission plan aims to encourage the development of renewable generating plants with energy storage. It would also count energy from Arizona Public Service's Palo Verde Nuclear Generating Station as clean energy.

    TEP says it generally backs the objectives of energy modernization plans and favors coordinated, integrated resource energy policies overseen by elected officials. The utility also notes it is already pursuing clean energy goals that exceed existing state requirements. The utility has 21 megawatts of battery energy storage currently operating, and has contracted for 30 MW of four-hour battery storage as part of a 100 MW solar farm slated to reach commercial operation in late 2020. TEP says it is also considering purchasing or contracting for up to 200 MW of the proposed Big Chino Valley pumped-storage hydro project north of Prescott, which is expected to be online in 2025. (Source: TEP,, 15 July, 2018) Contact: TEP, Renewable Energy Dir., Carmine Tilghman, Dir. Energy Supply and Renewable Energy, (520) 571-4000,,

    More Low-Carbon Energy News Arizona Corporation Commission,  Tucson Electric Power,  Renewable Energy,  Clean Energy,  

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