FOR IMMEDIATE RELEASE
Arizona Corporation Commission Decision Creates Economic Uncertainty for Rooftop Solar Solar advocates criticize ACC's decision. WATCH Our Press Conference Here Phoenix, Arizona — Yesterday, the Arizona Corporation Commission (ACC) held a meeting to discuss the value of solar. The agenda included a vote on reopening the Value of Solar proceeding, whether to change the 10-year buyback rate lock-in period for solar customers and the rule limiting the reduction in buyback rates to no more than 10% per year, and reversing course on the grandfathering of legacy net metering customers. Thousands of people wrote to the Commission, and dozens provided oral testimony during the meeting, overwhelmingly opposed to the ACC reopening the value of solar proceeding or increasing the step-down rate. Those in opposition included solar homeowners, solar workers, clean energy advocates, ratepayer advocates, and every regulated utility in the state. The Commission decided not to re-open the Value of Solar case, which dictates how solar owners who installed in 2017 or later are credited for the surplus energy they contribute to the grid. However, the Commission did vote to open a new docket to re-evaluate the 10% step-down limitation and lock-in period for future solar customers. The original 2017 Value of Solar decision, reached after a lengthy evidentiary hearing and extensive deliberation and compromise, was designed to ensure predictable compensation for solar owners while providing stability to Arizona's rooftop solar market. Current solar customers will maintain their rates. Autumn Johnson, Arizona Solar Energy Industries Association (AriSEIA), said, "We are very disappointed in the decision to open a new proceeding on the value of solar. Even opening the docket plunges the market into uncertainty. The new hearing to design a rate case for future customers could have a lasting and detrimental impact on both the solar industry and consumers. Solar is not just a source of clean energy; it's a driver of economic growth, job creation, and energy independence. It's essential to remember that the solar industry has been a significant contributor to Arizona's economy, providing thousands of jobs and attracting investments that benefit local communities." While the ACC did not re-open the export rate proceeding today, the potential changes could still substantially reduce compensation for solar energy and erode critical protections for homeowners investing in solar power. The step-down limit and lock-in period give homeowners predictability about the compensation they will receive for energy exported to the grid, which is critical when deciding to invest in solar. Changing these rules would directly impact the Arizona solar industry during a period of heavy federal investment in clean energy. “We're deeply concerned that any changes to how solar owners are credited for their extra power will jeopardize the future of rooftop solar in Arizona. Without the assurance of stable and predictable savings, many Arizonans will lack the confidence to go solar. Low-income and historically disadvantaged communities, especially, will be unable to access solar savings. The decline in rooftop solar growth would harm all ratepayers since rooftop solar creates a more affordable, efficient, and reliable power grid for everyone. It's crucial that we continue to work together to ensure a fair and equitable energy future with rooftop solar at the cornerstone,” said Adrian Keller of Solar United Neighbors. Prior to the meeting, stakeholders hosted a webinar and press conference to shed light on the need to maintain the established rates solar customers are paid by their utility for the extra power they provide to the grid. Experts from Vote Solar, AriSEIA, and Solar United Neighbors provided comments during the ACC meeting. "It's disheartening to witness some Commissioners actively seeking to undermine the value of distributed generation and disrupt the stability that consumers have come to rely on. We firmly believe in the value of distributed generation, like rooftop solar, as a crucial component of a clean and resilient energy future. We'll remain steadfast in our commitment to advocate for policies that prioritize the interests of consumers, the growth of renewable energy, and the protection of energy independence. We are proud of the thousands of people who sent in comments and the dozens who testified against these harmful decisions. We will work together in the new hearing to ensure equitable access to clean energy solutions.” said Kate Bowman, Vote Solar. Commissioners Nick Myers, Jim O'Connor, and Kevin Thompson all voted in favor of the new proceeding. Commissioners Lea Márquez Peterson and Anna Tovar voted against reassessing the stepdown and lock-in rates. The dates for the new hearing are forthcoming, with the six-month proceeding to take place next year. ### For media inquiries, interviews, or further information, please contact: Autumn Johnson autumn@ariseia.org 520-240-4757 Arizona Solar Energy Industries Association (AriSEIA) is a 501(c)(6) trade organization and the state affiliate of the Solar Energy Industries Association (SEIA). AriSEIA works to develop and support policies that create opportunities to advance Arizona’s economy through solar energy, storage, and electrification. We advocate for sustainable job creation and encourage utilization of Arizona’s greatest natural resource, the sun. Solar United Neighbors is a 501(c)3 nonprofit organization that works in Arizona and nationwide to represent the needs and interests of solar owners and supporters. Solar co-ops are part of the organization’s mission to create a new energy system with rooftop solar at the cornerstone. Solar United Neighbors holds events and education programs to help people become informed solar consumers, maximize the value of their solar investment, and advocate for fair solar policies. Vote Solar is a 501(c)3 non-profit organization. Vote Solar advocates for state policies and programs needed to repower our electric grid with clean energy. Vote Solar works to remove regulatory barriers and implement key policies needed to bring solar to scale. Vote Solar works to realize a 100% clean energy future through a solutions-driven, people-first approach.
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Line Siting Committee
Arizona Corporation Commission 1200 W. Washington Street Phoenix, AZ 85007-2996 RE: Obed Meadows CEC, Docket No. L-21254A-23-0184-00222 Chairman and Committee Members, The Arizona Solar Energy Industries Association (AriSEIA) submits this letter in opposition to requiring a System Impact Study (SIS) in advance of obtaining a Certificate of Environmental Compatibility (CEC). The legal briefs of the applicant, Arizona Public Service (APS), and Tucson Electric Power (TEP) all agree that such a requirement is outside the authority of the Line Siting Committee. Further, such a requirement would needlessly delay gen-tie applications. The legislature via HB 2496 and the Commission via dockets RLS-00000A-23-0251 and ALS-00000A-22-0320 and the Governor’s Office via signature of HB 2496, have all indicated that the goal of the State of Arizona is to expedite these renewable energy projects, not add additional bureaucratic hurdles and delay. The Line Siting Committee has been issuing CECs without SISs and it is not clear why that would need to change now. Testimony in this case, as well as the legal brief of APS, make clear that the absence of a SIS is not the fault of the applicant. There is a backlog of these studies, which is outside the control of renewable energy developers. Transmission Providers throughout the state of Arizona, including the state’s two largest utilities: APS and Salt River Project (SRP), are currently working through significant queue reforms to address interconnection backlogs. Proposed queue reforms will materially impact the timeline of interconnection studies, the requirements for projects to enter and stay in the interconnection queue, and the commercial expectations of projects when bidding into Request for Proposals (RFPs). Such queue reform is expected to introduce withdrawal penalties that will fundamentally change the way a project is developed, creating a new model whereby a project is incentivized to first acquire all its permits (including a CEC), obtain off-take, and then enter the interconnection queue. Having a SIS prior to filing for a CEC would be counter to the intent of queue reform, and a third-party power flow study would be expensive and redundant to already required utility interconnection studies. While the timeline around queue reform implementation is uncertain, FERC Order 2023 indicates an effective date is likely by the end of 2023 or in early 2024. AriSEIA strongly advocates that the Line Siting Committee adhere to the purpose and intent of the Line Siting statute (A.R.S. 40-360.06); its prior decisions on applications that did not have a SIS; the clear intent of the legislature, Governor’s Office, and Commission to reduce Line Siting delay; and the Federal Energy Regulatory Commission’s (FERC) queue reform process and not require a SIS prior to obtaining a CEC. A requirement to have a SIS may have unintended consequences that limit the ability for projects to reach operations in a timely manner. Sincerely, /s/ Autumn T. Johnson Executive Director AriSEIA (520) 240-4757 autumn@ariseia.org Arizona Corporation Commission
1200 W. Washington Street Phoenix, AZ 85007 Re: Application of APS (Docket No. E-01345A-23-0110), TEP (Docket No. E-01933A-23-0108), and UNSE (Docket No. E-04204A-23-0109) for Approval of Revisions to Resource Comparison Proxy Chairman and Commissioners, The Arizona Solar Energy Industries Association (AriSEIA) previously filed comments in the Arizona Public Service (APS) and Tucson Electric Power (TEP) dockets in this matter on August 4th.[1] That filing covered the history of the Resource Comparison Proxy (RCP), the dramatic increase to consumers for electricity, and the economic impact of high interest rates paired with a declining RCP rate on Arizona’s solar industry. We urge you not to decrease the RCP rate as proposed by Commissioner Myers’ Proposed Amendments No. 1 in each of the above referenced dockets.[2] This Commission has stated multiple times that it supports “regulatory certainty.” On January 3, 2017 the Commission issued Order 75859 in Docket No. E-00000J-14-0023, the Commission’s Investigation of the Value and Cost of Distributed Generation. That matter stemmed from a 2013 APS filing on net metering.[3] It then created a generic docket, known as the value of solar docket, that commenced on January 27, 2014 and ran for nearly two years before an evidentiary hearing was scheduled. The evidentiary hearing ran for two months in the spring of 2016 with more than eighteen parties participating. A 4-1 decision of an entirely republican Commission was issued in January 2017, three years after the docket was opened. Commissioner Burns was the lone dissenter. Implementation of the specific RCP methodologies was then resolved in subsequent rate cases for each utility. Decision 75859 states, There were also concerns raised in regard to the possibility of dramatic changes in the export rate and resulting uncertainty. However, to allow the export rate developed using this methodology to change gradually, it will be updated annually after it is initially set in a rate case proceeding or separate rate design phase. At the time that the initial DG export rate is set, a Plan of Administration that provides the mechanism for annual modifications to that initial rate also will be adopted. The annual updates accomplished between rate cases should be formulaic exercises where the Resource Comparison Proxy Methodology and the Avoided Cost Methodology established in the rate case is updated; however the reduction to the compensation rate under the RCP methodology shall not exceed ten percent per year.[4] Further, while the Commission outlined directions for calculating the RCP in Decision 75859, the Plan of Administration for each utility’s RCP rate requires the utility to submit an updated RCP calculation annually for Commission approval and specifies that the RCP “may not be reduced by more than 10% each year.”[5] The table below highlights the proposed RCP stepdown as recommended by Commission Staff versus the Myers amendments. These reductions run contrary to Decision 75859 and the Plans of Administration for each utility. As such, they do not adhere to the Commission’s own stated goal of “regulatory certainty” and also have not been noticed in accordance with A.R.S. 40-252.[6] Regulatory certainty should apply to all matters before the Commission, not only select matters. Further, it is likely a due process violation to take an RCP methodology from a multi-year process and modify it in an Open Meeting with no testimony, witnesses, or evidence and only two days’ notice, which has the potential to result in litigation. Any deviation greater than 10% from the established RCP methodology should be determined in an evidentiary hearing. AriSEIA’s previous filing highlighted the economic development importance of the solar industry to Arizona. There are more than 300 solar companies operating in Arizona. These companies employ more than 8,000 people in Arizona alone and have contributed $16.5 billion dollars to the state, with $1.5 billion invested just last year.[7] Declines in the solar industry will have ripple effects throughout the economy impacting many other high quality, blue collar jobs, such as in energy efficiency, HVAC, roofing, windows, and insulation. There is no evidence to support Commissioner Myers’ assertion that decreasing the RCP rate by 37-56% will not have a catastrophic impact on an important industry in one of the sunniest states in the country. A table reflecting an increase in DG adoption despite a 10% stepdown in prior years does not mean that increases will continue in the future with a 10% stepdown and certainly not with a stepdown 3-4 times prior decreases. Further, there is no evidence in this docket that the RCP has not dampened growth of this important industry. Because installation rates continue to creep up in TEP and UNSE’s territories does not mean they are not impacted, it simply means the industry has not completely stagnated due to burdensome regulation. APS’ DG penetration is better than TEP and UNSE’s but is still only looking at 1% growth annually since the RCP framework was adopted. Finally, AriSEIA does not agree that the RCP is a “subsidization.” The utilities pay for the power produced that benefits the grid. That power has a number of benefits that are different than utility scale solar. DG does not require new transmission; lengthy Line Siting and zoning proceedings; major land use implications that impact other industries, such as agriculture; or other major infrastructure improvements. The systems are entirely paid for by individual consumers. They are only compensated for the power they provide to the utility that benefits the entire grid, improves resiliency, and can be utilized with storage in demand response programs. If the Commission wishes to reevaluate the value of DG, an evidentiary hearing, not an open meeting, is the appropriate place to do so. Also, both the TEP and APS rate cases have also reflected numerous incidences of the utilities purchasing wholesale power above the RCP rate. Therefore, it is incorrect to assume that DG is somehow above the market rate for power. AriSEIA opposes the Myers Amendments 1 and continues to advocate for an RCP stepdown less than 10%, which is permissible under Order 75859 and the Plans of Administration. Respectfully, /s/ Autumn T. Johnson Executive Director AriSEIA (520) 240-4757 autumn@ariseia.org [1] AriSEIA, Solar United Neighbors, and Vote Solar Joint Letter, Dockets E-01345A-23-0110 and E-01933A-23-0108, filed August 4, 2023, available here https://docket.images.azcc.gov/E000029205.pdf?i=1692739207146. [2] Commissioner Myers Proposed Amendments 1, filed August 22, 2023, in Docket No. E-01933A-23-0108, available here https://docket.images.azcc.gov/E000029934.pdf; Docket No. E-01345A-23-0110, available here https://docket.images.azcc.gov/E000029933.pdf; and Docket No. E-04204A-23-0109, available here https://docket.images.azcc.gov/E000029935.pdf. [3] Arizona Public Service, In the Matter of the Application of the APS for Approval of Net Metering Cost Shift Solution, Docket No. E-01345A-13-0248, available here https://edocket.azcc.gov/search/docket-search/item-detail/18039. [4] Arizona Corporation Commission, Order 75859, Page 151, Line 24 through Page 152, Line 4 (emphasis added), Filed January 3, 2017, available here https://docket.images.azcc.gov/0000176114.pdf?i=1692725715837. [5] See Appendix H, Arizona Corporation Commission, Decision No. 76295, (Aug. 18, 2017), https://docket.images.azcc.gov/0000182160.pdf?i=1657139837798 (emphasis added). [6] Arizona Revised Statutes, 40-252, available here https://www.azleg.gov/ars/40/00252.htm. [7] Solar Energy Industries Association (SEIA), Arizona Solar Census, Q1 2023, available here https://www.seia.org/sites/default/files/2023-07/Arizona.pdf. Arizona Corporation Commission
1200 W. Washington Street Phoenix, AZ 85007 Re: Application of APS & TEP for Approval of Revisions to Resource Comparison Proxy (Dockets No. E-01345A-23-0110 & E-01933A-23-0108) Chairman and Commissioners, Vote Solar, Solar United Neighbors, and the Arizona Solar Energy Industries Association (AriSEIA) urge you to support Arizona families and businesses who wish to invest in their own energy resources by reducing the proposed step down of Arizona Public Service’s (APS) and Tucson Electric Power’s (TEP) Resource Comparison Proxy (RCP) rate for 2023. The Commission outlined directions for calculating the RCP in Decision 75859, and the Plan of Administration for each utility’s RCP rate requires the utility to submit an updated RCP calculation annually for Commission approval and specifies that the RCP “may not be reduced by more than 10% each year.”[1] The Commission has the opportunity to provide consumers looking to save money on their energy bill with relief by reducing the RCP step down less than 10%. This also provides the Commission with the opportunity to support businesses in Arizona by saving jobs. Arizona families and businesses continue to face unusual economic challenges driving up the cost of basic necessities like electricity. Over the last year, consumers experienced a 6% increase in electricity costs[2] following on the heels of a 12% increase in electricity costs the year prior, the largest 12 month increase in nearly 20 years.[3] Rooftop solar is an important tool that ratepayers can utilize to help reduce their utility bills and increase energy resiliency at their home. As interest rates continue to increase to their highest levels in decades, Arizona families and businesses who must rely on long-term financing to afford the upfront cost of a solar installation may find that going solar is no longer an affordable option. Currently, any homeowner looking to finance rooftop solar will find interest rates as high as 11.99%. This makes solar very unaffordable for any homeowner who cannot buy their system outright. Any further reductions of the RCP will reduce the number of Arizona households who are able to benefit from their private investment in solar. Additionally, further reductions to the RCP will depress solar adoption in Arizona and limit opportunities to leverage distributed energy resources for demand response purposes to benefit grid resiliency. Increasingly, customers who invest in solar choose to pair their installation with distributed battery storage. This creates an opportunity for utilities to leverage customer-sited battery storage as a “virtual power plant” that can help provide reliable power to the grid in the evening hours or during summer heat waves. As investments in solar become less affordable, the growth of other innovative distributed energy resources like battery storage will stagnate. Further, there are more than 300 solar companies operating in Arizona. These companies employ more than 8,000 people in Arizona alone and have contributed $16.5 billion dollars to the state, with $1.5 billion invested just last year.[4] Residential rooftop solar installers are reporting a nearly 20% decline in business year over year since 2022, with nearly 35% declines in revenue. This is likely to result in workforce reductions of 20%. Individual installers are considering job cuts of dozens of jobs with an average, annual pay of $62,500 a year. A decline in solar will also result in declines in the roofing industry and other energy efficiency contractors, such as HVAC, windows, and insulation. High interest rates paired with a declining export rate will exacerbate this problem, resulting in a significant impact to the state’s economy. We respectfully request that the Commission reduce the step downs proposed by APS and TEP, as included within the Staff’s proposed order, in an effort to support families and businesses and provide them with an extended opportunity to capitalize on the power of the sun to reduce their energy bills. Thank you for your consideration of this important matter. Sincerely, Autumn T. Johnson Executive Director AriSEIA autumn@ariSEIA.org Adrian Keller Arizona Program Director Solar United Neighbors (SUN) akeller@solarunitedneighbors.org Kate Bowman Interior West Regulatory Director Vote Solar kbowman@votesolar.org [1] See Appendix H, Arizona Corporation Commission, Decision No. 76295, (Aug. 18, 2017), https://docket.images.azcc.gov/0000182160.pdf?i=1657139837798 (emphasis added). [2] U.S. Bureau of Labor Statistics, Consumer Price Index Summary, (May 2023), https://www.bls.gov/news.release/cpi.nr0.htm. [3] U.S. Bureau of Labor Statistics, Consumer Prices Up 8.6 percent over year ended May 2022, TED: The Economics Daily, (June 14, 2022), https://www.bls.gov/opub/ted/2022/consumer-prices-up-8-6-percent-over-year-ended-may-2022.htm. [4] Solar Energy Industries Association (SEIA), Arizona Solar Census, Q1 2023, available here https://www.seia.org/sites/default/files/2023-07/Arizona.pdf. AriSEIA filed surrebuttal testimony today in the APS rate case at the Arizona Corporation Commission. The testimony focuses in large part on the APS response to our Bring Your Own Device/Virtual Power Plant program, revisions to rates with storage, and the solar cost of service study.
Before the Arizona Corporation Commission
Commissioners Jim O'Connor – CHAIR Lea Márquez Peterson Anna Tovar Kevin Thompson Nick Myers IN THE MATTER OF THE APPLICATION OF ARIZONA PUBLIC SERVICE COMPANY FOR A HEARING TO DETERMINE THE FAIR VALUE OF THE UTILITY PROPERTY OF THE COMPANY FOR RATEMAKING PURPOSES, TO FIX A JUST AND REASONABLE RATE OF RETURN THEREON, AND TO APPROVE RATE SCHEDULES DESIGNED TO DEVELOP SUCH RETURN DOCKET NO. E-01345A-22-0144 SIERRA CLUB, ARIZONA SOLAR ENERGY INDUSTRIES ASSOCIATION (ARISEIA), AND SOLAR ENERGY INDUSTRIES ASSOCIATION (SEIA) JOINDER IN OPPOSITION TO ARIZONA FREE ENTERPRISE CLUB’S MOTION FOR LEAVE TO INTERVENE AND OPPOSITION TO THE MOTION TO RECONSIDER Sierra Club, AriSEIA, and SEIA join in Arizona Public Service’s (APS) opposition to the Motion for Leave to Intervene filed by the Arizona Free Enterprise Club (AFEC), which was filed on June 23, 2023. We also oppose AFEC’s Motion to Reconsider filed July 7, 2023. The Notice of Intent to File a Rate Case was filed on June 1, 2022. APS’ application was filed on October 28, 2022. A Procedural Order setting the intervention deadline as February 16, 2023, was filed on December 2, 2022. On December 8, 2022, the intervention deadline was moved to March 3, 2023. Direct testimony on the revenue requirement was due on June 5, 2023 and direct testimony on rate design was due on June 15, 2023. By that time, approximately 34 entities had been granted intervention in this matter, public comment sessions have been held, and significant media attention has been applied to this proceeding. Additionally, the hearing is already scheduled to run for 5 weeks. AFEC filed for intervention 16 weeks after the intervention deadline, 3 weeks after the revenue requirement testimony filing deadline, and more than a week after the rate design testimony filing deadline. To grant intervention now would prejudice other parties because we will not have adequate time to review and respond to the interests AFEC purports to have in this proceeding without delaying the hearing. Further, discovery is well underway. Allowing intervention at this point creates the potential for voluminous and burdensome discovery requests to any other party in the proceeding only 5 weeks before the discovery deadline. Finally, and most concerning, there is a substantial risk that AFEC’s interests could increase the duration of the hearing, thereby increasing costs to ratepayers, the Commission, and all of the other parties. This is especially concerning to nonprofit organizations with finite resources as additional hearing days can dramatically increase the cost to intervene. AFEC says they “do not intend to provide testimony or cross examine witnesses, our intention with intervention is for the ability to present evidence to support our perspective and ensure the interests of ratepayers are adequately represented.”[1] This fundamentally misunderstands the nature of rate cases. A party cannot introduce “evidence” absent a witness, because due process requires the person sponsoring an exhibit to be cross-examined. If AFEC solely wants to present public comment, they do not need to be an intervenor in the case. Further, there are multiple parties already in the case who represent the interests of ratepayers, such as RUCO and Wildfire. AFEC has not provided any information as to how they are better suited to represent ratepayers than the organizations whose primary function is to do so or how they can possibly “present evidence” without delaying or prolonging the proceeding. AFEC had the same opportunity as all of the other parties to timely intervene in this proceeding. For these reasons, we ask that AFEC’s Motion to Reconsider be denied. RESPECTFULLY SUBMITTED this 7th day of July 2023. By /s/ Patrick Woolsey Louisa Eberle - AZ Bar No. 035973 Patrick Woolsey (Pro Hac Vice) Nihal Shrinath (Pro Hac Vice) Attorneys for Sierra Club By /s/ Autumn Johnson Autumn Johnson (035811) Attorney for AriSEIA and SEIA [1] Arizona Free Enterprise Club Motion to Reconsider, Docket No. E-01345A-22-0144, Filed July 7, 2023, P.3, L. 15-18. AriSEIA filed direct testimony on rate design today in the APS rate case. The testimony covered a BYOD/VPP program proposal, a recommendation to disallow cost recovery for APS' uncompetitive microgrid program, rate design changes to several commercial storage rates, a change to how demand charges work for commercial customers installing EV chargers, a robust critique of APS' solar cost of service study, and community solar.
Support for Arizona Public Service (APS) and Tucson Electric Power (TEP)’s Request for an Extension of Integrated Resource Plan (IRP) Filing Deadline
The Joint Signatories, all members of APS and/or TEP’s IRP Advisory Council, write to support APS and TEP’s request to extend the deadline for filing their IRPs from August 1st, 2023, to November 1st, 2023, contingent on timely access to the modeling software and training. The APS and TEP Resource Planning Advisory Councils (RPAC) comprise a diverse group of stakeholders and community representatives the RPACs have been providing input to APS and TEP on their next IRP on behalf of residential and business customers, local governments, public schools, the limited-income community, and the solar and environmental community, among others. We have been meeting monthly since the spring of 2021 for APS, and the fall of 2022 for TEP, to share perspectives and provide input to help both utilities chart a long-term integrated resource plan that maintains reliable, affordable electric service through a balanced, flexible resource mix, which also advances sustainable outcomes. Meetings have addressed topics vital to developing a comprehensive, integrated resource plan, such as load forecasting, existing resource fleet and transmission systems, technology options and costs, and environmental impacts. During these meetings, stakeholders have been invited to listen, offer feedback, and pose questions. Participants have also been encouraged to present their own views. All meeting materials, agendas, and summaries are publicly available on APS and TEP’s RPAC websites. Also, pursuant to the Commission’s Decision 78499, APS and TEP are preparing to provide access to modeling licenses for RPAC members so that they will have the ability to conduct their own modeling analysis to better inform and provide feedback to the final IRP scenarios. However, APS and TEP have not yet provided RPAC members with the model licenses or data necessary to start the modeling efforts. Because the three months remaining before the August 1st deadline is not enough time to give this process the due diligence it deserves, a three-month extension to November 1st, 2023, is justified. This new engagement model provides value to the Commission, APS, TEP, and other stakeholders by:
Because this is the first time this kind of advisory structure with modeling access has been implemented, ensuring that all RPAC participants have a solid understanding of various complex energy issues is essential. As such, many of the RPAC’s initial meetings have focused on education and information sharing. While these educational sessions have been valuable and necessary, the RPAC members have yet to receive the modeling licenses or modeling data and have not begun reviewing and providing input on the dozens of modeled IRP portfolios that APS and TEP produce. Approving APS and TEP’s request to extend the deadline for the filing of their IRPs from August 1st, 2023, to November 1st, 2023, and providing RPAC members access to the modeling license no later than May 2023, would enable the completion of this vital work. This deadline extension should be contingent on the utilities timely providing license access and training. The extension should require APS and TEP to provide access to the model and the requisite training within 30 calendar days of the decision. Thank you for considering our comments, and we encourage the Commission to discuss this matter during the May Contingency Open Meeting date on May 11th. Arizona Corporation Commission
1200 W. Washington Street Phoenix, AZ 85007-2996 RE: Resource Planning and Procurement in 2021, 2022, and 2023 (Docket No. E-99999A-22-0046) and In the Matter of Resource Planning and Procurement in 2019, 2020, and 2021 (Docket No. E-00000V-19-0034) Chairman O’Connor and Commissioners, At the February 2022 Open Meeting, scheduled for February 8th and 9th, 2022, the Commission voted to acknowledge the 2020 Integrated Resource Plans (IRPs) of Tucson Electric Power (TEP) and Arizona Public Service (APS).[1] In addition to acknowledging the IRPs, the Commission placed numerous other requirements on the utilities, including a requirement to provide stakeholders and Commission Staff with the requisite tools to meaningfully participate in the subsequent modeling process. IT IS FURTHER ORDERED that Arizona Public Service Company, Tucson Electric Power Company, and UNS Electric, Inc. shall in future Integrated Resource Plans negotiate a project-based licensing fee that permits up to 12 Resource Planning Advisory Council members and Staff the ability to perform their own modeling runs in the same software package as these load serving entities, and to provide all necessary data and support to fully utilize the models. The load serving entities shall absorb the cost of the licensing fees.[2] To date, nearly 15 months after this vote, neither utility has complied with the Order. Stakeholders have been requesting access since Q4 2022. Stakeholders are still waiting on Nondisclosure Agreements (NDAs) from TEP and were told by APS that training on the software would occur in April 2023. Only the utilities have the ability to execute NDAs, provide the licenses and data, and conduct the requisite training. Without these tools, stakeholders are unable to meaningfully participate in the manner desired by Order 78499. We ask the Commission to direct both TEP and APS to provide all of the above mentioned tools no later than May 31, 2023. Additionally, because of this lengthy delay, we ask for the IRP filing deadline to be extended past August 1, 2023. That is simply not enough time to conduct modeling and provide meaningful feedback on the results. Finally, we ask that the Commission take this issue up as soon as possible, at either the May 2nd Open Meeting or the May 11th Contingency Meeting, because the June Open Meeting is too close to the IRP deadline to permit resolution of these issues with sufficient time to carry out the analysis envisioned in the Commission’s Order. Respectfully, Autumn T. Johnson Executive Director Arizona Solar Energy Industries Association (AriSEIA) 520-240-4757 autumn@ariseia.org [1] Open Meeting Notice, Docketed February 3, 2022, Agenda Item 26, available here: https://docket.images.azcc.gov/0000205866.pdf?i=1682712327380. [2] Decision No. 78499, Docketed March 2, 2022, Page 14, Lines 9-14, available here: https://docket.images.azcc.gov/0000206081.pdf?i=1682710289643. Arizona Corporation Commission
1200 W. Washington Street Phoenix, AZ 85007 Re: Support for Approval of Revisions to Rate Schedule E-32 L SP, Docket No. E-01345A-22-0281 Chairman O’Connor and Commissioners, Vote Solar and the Arizona Solar Energy Industries Association (AriSEIA) are supportive of the Arizona Public Service (APS) Company’s Application for the approval of revisions to rate schedule E-32 L SP and encourage the Commission to approve this rate. APS’ proposed revisions are pursuant to Decision No. 78317 (November 9, 2021), which directed APS to engage in a collaborative with interested stakeholders to explore possible improvements to E-32 L SP (Large General Service Storage Pilot).[1] Following a series of collaborative meetings that took place from February to October 2022, APS has proposed revenue-neutral design changes that improve upon the Large General Service Storage Pilot rate. The Large General Service Storage Pilot rate is a pilot rate available to large commercial customers who choose to adopt energy storage systems. The purpose of E-32 L SP is to promote the economic dispatch of customer-sited energy storage systems in a manner that aligns with high peak load. To date, no customers have chosen to take service on E-32 L SP. APS’ revisions to the rate include higher energy charges during all hours and months of the year, and significantly higher energy charges during summer on-peak periods between 4:00 and 9:00 PM. Demand charges have been reduced commensurately, resulting in a rate design that is overall revenue-neutral. APS’ revisions address a flaw in the current E-32 L SP by increasing the emphasis on volumetric energy rates. As a result, the revised Large General Service Storage Pilot will provide greater investment certainty for commercial customers. Demand charges present operational challenges for customers seeking to reduce their energy bills because they are calculated based on the customers’ highest 15-minute period of energy usage throughout the month. A customer who proactively dispatches their energy storage system during all but a single 15-minute period of the month will pay a demand charge equal to what they would have paid had they not adopted energy storage at all. Demand charges can penalize customers who adopt energy efficient technology, especially new and unfamiliar technology, because it is challenging to forecast savings and there is significant risk that small changes in operation of the energy storage system could threaten forecasted savings. In contrast, emphasis on volumetric rates gives customers the opportunity to save money on their utility bill in a manner that is proportional to the benefit they are providing through dispatch of energy storage during times of peak load. APS’ proposed revisions - particularly the increases in the summer on-peak energy rate from 6.5 cents per kilowatt-hour to 17.6 cents per kilowatt-hour - maintains a strong price differential that will encourage the dispatch of customer-sited storage during periods of high load in the summer. We recommend one additional change to the E-32 L SP tariff. While the current tariff defines the on-peak period as 4:00 to 7:00 PM on weekdays, the revised tariff re-defines the on-peak period as 4:00 to 9:00 PM every day. We recommend narrowing the on-peak window to weekdays, as this better aligns with the hours when APS is most likely to experience high customer load and normal hours of business operations. The Commission could direct APS to evaluate this change as part of their current rate case in Docket No. E-01345A-22-0144. We do not wish this evaluation to delay approval of the revised tariff at the May 2 Open Meeting. Arizona is poised to lead on the adoption of distributed battery storage through the development of rates that encourage economically efficient adoption of customer-sited batteries. Increased adoption of customer-sited batteries gives utilities an additional tool to flexibly and cost-effectively meet their customers’ energy needs and can provide significant cost and grid resilience benefits for all ratepayers. We appreciate APS’ efforts to work with stakeholders to improve the E-32 L SP tariff. We urge the Commission to approve APS’ Application today and consider whether changes to the on-peak hours are warranted through evaluation as part of APS’ rate case. Thank you for your consideration of this important matter. Respectfully, Kate Bowman Interior West Regulatory Director Vote Solar kbowman@votesolar.org 703-674-8637 Autumn Johnson Executive Director AriSEIA autumn@ariseia.org 520-240-4757 [1] Decision No. 78317, November 9, 2021, page 441 lines 15 - 21. |
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