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  • - A radical idea to get a high-renewable electric grid

    This is an interesting approach to optaining very high penetration of renewables such as photovoltaics and wind.  At present most large installations operate under Power Purchase Agreements (PPA) wherein the economics are based on a sell all output at predetermined prices. This contrasts with standalone systems wherein the system size Read More
  • - Breakthrough Batteries Powering the Era of Clean Electrification

    - Breakthrough Batteries Powering the Era of Clean Electrification Battery Storage Costs Drop Dramatically, Making Way to a New Era. A recent Rocky Mountain Institute (RMI) report continues to confirm that clean electrification through batteries is advancing at impressive rates. Very interesting report: Breakthrough Batteries- Powering the Era of Clean Electrification Read More
  • - Interesting Technology

    An assortment of links to interesting information   Semiconductor Nanowires Could Double the Efficiency of Silicon Solar Cells A p/n semiconductor junction is not the only way of converting sunshine into useful electrical energy.  Light consists of a flow of photons of various energy levels (colors).  See this article-Solar Cells.  Nanowires Read More
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6/30/20220

Commissioners approved Tucson Electric Power Company’s (TEP) revised Distributed Generation Interconnection Manual. The creation of these manuals was required following the Commission passing rules dealing with the interconnection of distributed generation facilities. TEP’s manual lays out technical and safety requirements that customers within its service territory must follow when interconnecting a distributed generation system, such as residential and commercial solar projects, to the existing grid. The manual is meant to create a standardization process for customers.

TEP’s manual was initially approved at the Commission’s February 2022 Open Meeting, however, following the passage of AriSEIA proposed amendments at that meeting, a revision to the manual was necessary. After several meetings between AriSEIA, TEP, and ACC Staff, the manual was revised to include information regarding Meter Socket Adapters (MSA), detailing their use for generating facilities. The manual was updated to better preserve the Super-Fast Track and Fast Track designations, allowing for faster review tracks for qualified projects. The revised manual also clarifies study cost fees customers are responsible for prior to beginning any study. TEP’s revised manual does not prematurely require inverters to comply with the IEEE sections that are not yet developed or for which equipment is not yet capable of compliance. Further, the manual modified its requirements around transfer trip infrastructure so as not to be overly burdensome, thereby reducing costs for large installations. Finally, the revised manual includes an additional section that provides a list of scenarios meriting an extension of time.

All documents related to this agenda item can be found in the Corporation Commission’s online docket at https://edocket.azcc.gov and entering docket number E-01933A-20-0116.

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  • Welcome to the Arizona Solar Center

     This is your source for solar and renewable energy information in Arizona. Explore various technologies, including photovoltaics, solar water heating, solar architecture, solar cooking and wind power. Keep up to date on the latest industry news. Follow relevant lectures, expositions and tours. Whether you are a homeowner looking to become more energy efficient, a student learning the science behind the technologies or an industry professional, you will find valuable information here.
  • About The Arizona Solar Center

    About The Arizona Solar Center Arizona Solar Center Mission- The mission of the Arizona Solar Center is to enhance the utilization of renewable energy, educate Arizona's residents on solar technology developments, support commerce and industry in the development of solar and other sustainable technologies and coordinate these efforts throughout the state of Arizona. About the Arizona Solar Center- The Arizona Solar Center (AzSC) provides a broad-based understanding of solar energy, especially as it pertains to Arizona. Registered Read More
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