• New Discovery Could Improve Organic Solar Cell Performance

    While there is a growing market for organic solar cells ­­– they contain materials that are cheaper, more abundant, and more environmentally friendly than those used in typical solar panels – they also tend to be less efficient in converting sunlight to electricity than conventional solar cells. Now, scientists who are members of the Center for Computational Study of Excited-State Phenomena in Energy Materials (C2SEPEM) a new Read More
  • Know Your Rights

    Arizona law protects individual homeowners’ private property rights to solar access by dissolving any local covenant, restriction or condition attached to a property deed that restricts the use of solar energy. This law sustained a legal challenge in 2000. A Maricopa County Superior Court judge ruled in favor of homeowners in a lawsuit filed by their homeowners association seeking to force the homeowners to remove Read More
  • Home Battery Systems

    Rooftop solar panels are common in Arizona thanks to abundant sunshine, but to get even more use from the technology, homeowners are beginning to pair them with large home batteries. Batteries allow homeowners to store their surplus electricity, rather than send it to the grid in exchange for credit from their electric company. Read More
  • Solar Hot Water

    There are two types of solar water heating systems: active, which have circulating pumps and controls, and passive, which don't. The typical solar water heater is comprised of solar collectors and a well-insulated storage tank. The solar collector is a network of pipes that gathers the sun's energy, transforms its radiation into heat, and then transfers that heat to either water or a heat-transfer fluid. Read More
  • Federal Residential Renewable Energy Tax Credit

    (Information provided by DSIRE - Last reviewed 02/19/2009) Incentive Type: Personal Tax Credit State: Federal Eligible Renewable/Other Technologies: Solar Water Heat, Photovoltaics, Wind, Fuel Cells, Geothermal Heat Pumps, Other Solar Electric Technologies Applicable Sectors: Residential Amount: 30% Maximum Incentive: Solar-electric systems placed in service before 2009: $2,000Solar-electric systems placed in service after 2008: no maximumSolar water heaters placed in service before 2009: $2,000Solar water heaters placed Read More
  • Solar Building Design in Arizona

    The idea of using the sun to meet the energy needs in our buildings has been with us since the time of the Greeks, with some of the design manifestations even evident in the prehistoric structures of Arizona and the Southwest. There is a great historic tradition for Arizona buildings that utilize our most abundant resource, and the current increases in The idea of using Read More
  • How Not to- Battery Connections

    Photo shows the situation after a battery discharge test at 300 amps was terminated on a 1530 AH IBE battery string when one post melted. During the discharge test all cell voltages are logged. The sum of the cell voltages was 2.73 volts lower than the 48-volt string voltage. This is an average of 118 mv per inter-cell connection, 5-10 mv is the normal range Read More
  • 1 New Discovery Could Improve Organic Solar Cell Performance
  • 2 Know Your Rights
  • 3 Home Battery Systems
  • 4 Solar Hot Water
  • 5 Federal Residential Renewable Energy Tax Credit
  • 6 Solar Building Design in Arizona
  • 7 How Not to- Battery Connections

Blogs

  1. Solar Center Blog
Brian Czech
17 February 2019

What’s Really Green and What’s Really New

Ask Americans what the Green New Deal is all about, and you’ll get two basic answers. Most often you’ll hear, “It’s about moving to renewable energy in order to fight climate change.” You’ll also hear, from a camp further right, “It’s all about socialism!”

Lucy Mason
06 January 2018

Wishing you a wonderful and Happy New Year!

The year 2017 has gone by quickly, and AriSEIA has accomplished a full and active agenda to further solar and renewable energy in Arizona. 


Featured (Note- Articles below shift Left-Right)

Some things to pay attention to in Arizona


Seeking Arizona agriculture producers who are using small solar systems in their operations in Arizona

Dr. Bonnie Eberhardt Bobb, Executive Director of the Western Sustainable Agriculture Working Group, is looking for agriculture producers who are using small solar systems in their operations in Arizona who might be willing to help her with preparing ACC testimony, discussion with representatives, writing letters of support, signing petitions, etc. to further their goal of increased renewables in agriculture. She would love to hear from ag producers and listen to their stories of how solar has benefited their operations. Thank you so much. Please contact drbonnie2002@yahoo.com if you can assist.

Arizona Corporation Commission 

See our information on PROPOSED RULEMAKING REGARDING INTERCONNECTION OF DISTRIBUTED GENERATION FACILITIES

AZCC logo

Renewable Energy Standard and Transition Plan (REST)

Stakeholder Meeting and Workshop March 10-11, 2020

Hearing Room One
1200 W. Washington St., Phoenix, AZ 85007

Commissioner Sandra D. Kennedy has submitted the Kennedy Renewable Energy Standard and Transition Plan II (KREST II), that calls for improving the existing REST to:


50 percent Renewable Energy Standard by 2028 and

100 percent Carbon Emissions Free Standard by 2045.

More Details

 

Utility Information

During March 2019, SRP wrapped up their public pricing process at a final rate setting board hearing.

The board approved new rates for SRP customers, which will translate to a $1 to $4 decrease in monthly bills.
The board also voted to lower rates for solar customers, approve three new options for solar customers, and adopt a new battery/storage incentive.

https://www.azcentral.com/story/money/business/energy/2019/03/25/salt-river-project-decreases-rates-customers-but-solar-debate-rages/3245669002/.

Arizona Public Service Co. has announced that it plans to produce all of its electricity from carbon-free sources by 2050 and will get 45% of its power from renewable sources like solar and wind by the end of this decade.

This is a good improvement from the point of view of sustainable energy.  There are still a lot of details to be worked out such as the role that distributed energy will take.  Will APS APS improve its policies in regard to residential and small commercial systems.

There are several good news articles and the APS press releases on this announcement:

APS:APS sets course for 100 percent clean energy future

Arizona Republic: APS will eliminate carbon emissions by 2050 and close coal plant ahead of schedule, CEO says

The Washington Post: Arizona’s biggest utility says it will get all of its electricity from carbon-free sources by 2050

 

FRAUD ALERT

Attorney General Warns About Deceptive “Solar Initiative” Flyers

PHOENIX – Attorney General Mark Brnovich issued a warning today about deceptive flyers appearing on residences in the Phoenix area that promote a solar energy effort.

The flyers claim to be a “Public Notice” from the “Maricopa County Solar Initiative,” and claim that “Arizona and the Federal Government ITC (26 USC § 25D) are paying to have solar energy systems installed on qualified homes in this neighborhood.” The flyers tell consumers to call to schedule their “site audits.” Consumers who call are subjected to a solar sales pitch by a private company. In addition, the Maricopa County Solar Initiative’s website improperly uses a modified version of the county seal, but the “Solar Initiative” is linked to a private business and is not associated with the county. The “Solar Initiative” is also not registered to do business in Arizona.

Similar flyers previously appeared in Clark County, Nevada, this summer, and law enforcement officials there have warned that the “Clark County Solar Initiative” notices are deceptive.

Arizona Attorney General Mark Brnovich has aggressively prosecuted businesses masquerading as government agencies, including obtaining consent judgments against “Mandatory Poster Agency” and “Compliance Filings Service,” resulting in full restitution for Arizonans totaling hundreds of thousands of dollars.

A picture of the “Public Notice” is below:
A picture of the improperly modified county seal used by the “Solar Initiative” is below:

 If you believe you are a victim of consumer fraud, you can file a complaint online at the Arizona Attorney General’s website. You can also contact the Consumer Information and Complaints Unit in Phoenix at (602) 542-5763, in Tucson at (520) 628-6648, and outside of the metro areas at (800) 352-8431.

Source:https://www.azag.gov/press-release/attorney-general-mark-brnovich-warns-about-deceptive-solar-initiative-flyers

Also covered at: https://www.azcentral.com/story/news/local/arizona/2018/11/26/deceptive-flyers-circulate-arizona-promoting-solar-energy-effort/2115597002/


Interesting Technology Updates;

 

 

 

 


Events

Interesting Videos

Phoenix Solar Requirements- 2019

The City of Phoenix as adopted an Citywide Interpretation concerning New Solar PV Live Loads on Existing Building Roof Structures.

The sub-title is: Adding a new solar Photovoltaic (PV) panel system to an existing building's roof structure where the existing building is not undergoing a change of occupancy.


Basically an interpretation of the 2018 IEBC 303, 502.4, 503.3, 806.2 code. Designers of PV systems ahould review the Interpretation at:

https://www.phoenix.gov/pddsite/Documents/TRT/dsd_trt_pdf_00844.pdf

There is also Interpretation covering Solar Panel Connections:

https://www.phoenix.gov/pddsite/Documents/TRT/dsd_trt_pdf_00702.pdf

Walmart Says Tesla’s Solar Panels Caught Fire On Multiple Store Roofs

The retail giant is suing Tesla alleging breach of contract after fires on the roofs of at least seven stores.

Walmart has claimed in a lawsuit that Tesla-supplied solar panels on the roofs at several of its stores caught fire because of the tech company’s “widespread, systemic negligence” and its “failure to live up to industry standards.”

The retail giant is suing Tesla alleging breach of contract after fires on the roofs of at least seven Walmart stores with solar panels installed by Tesla’s solar business. These fires, which occurred at stores in several states from 2012 to 2018, cost Walmart hundreds of thousands of dollars, said the lawsuit, filed Tuesday in a New York court.

To state the obvious, properly designed, installed, inspected, and maintained solar systems do not spontaneously combust, and the occurrence of multiple fires involving Tesla’s solar systems is but one unmistakable sign of negligence by Tesla,” the complaint said, according to CNN Business.

Walmart is seeking damages from Tesla and is demanding the company remove all of its solar panels from its stores. The retailer said that Tesla has installed panels on the roofs of more than 200 of its outlets.

Tesla has not responded to HuffPost’s after-hours request for comment.

The lawsuit comes just days after Tesla founder Elon Musk announced the relaunch of its solar rental business. The move, according to TechCrunch, appears to be an attempt by Tesla to revive the “flagging fortunes” of its renewable energy business, which has steadily been losing market share in recent years.

As Reuters noted, the Walmart lawsuit isn’t the only fire-related problem currently affecting Tesla.

The company is also being probed by the National Transportation Safety Board following several deadly accidents involving Tesla Model X and Model S cars that burst into flames.

From CNN

In recent years, Walmart (WMT) installed solar panels from Tesla Energy Operations on the more than 240 stores across the country. The two companies agreed that Walmart would lease or license its roof space to Tesla (TSLA) for the solar panels in exchange for lower energy costs, and Tesla would retain ownership of the panels and handle their maintenance, the filing states. It details fires at seven stores across the country, which Walmart contends all originated in Tesla solar panels and cost the retailer millions in repairs.

 Elon Musk sets bold goals. But has he delivered?

"To state the obvious, properly designed, installed, inspected, and maintained solar systems do not spontaneously combust, and the occurrence of multiple fires involving Tesla's solar systems is but one unmistakable sign of negligence by Tesla," the complaint states.

Walmart alleges that as of November 2018, seven stores had experienced fires as a result of the solar panels, with the first occurring in 2012 in Long Beach, California.


One fire, in March 2018 at a store in Beavercreek, Ohio, caused a large amount of black smoke, forcing employees and customers in the Walmart and in nearby stores to evacuate, the filing states. Walmart said the fire destroyed "significant amounts" of store merchandise, requiring thousands of dollars in replacements as well as building repairs, and the store had to close for eight days.

Walmart says two other, similar fires occurred during that month, after which point it asked Tesla to disconnect the solar panels out of fear "for the safety of its customers, its employees and the general public."

Tesla complied, but another fire occurred even after the panels were disconnected, Walmart claims. The complaint also states that Tesla's own inspections of the solar panel systems installed on Walmart roofs identified some "unsafe or potentially unsafe" conditions."

Walmart said no one was seriously injured in any of the fires.

 

legal doc

87. Many of the Tesla solar panels inspected by Walmart were suffering from
hotspots, resulting in cracking of the back sheets on solar modules and compromising electrical
insulation. This condition compounded the danger and substantially heightened the risk of fire:
the hotspots reflected an excessive build-up of heat in the solar modules, which in turn wore
down the insulation that was designed to keep electrical currents flowing within their proper
paths and to separate electric conductors from their surrounding materials. These conditions can
readily lead to electrical fires capable of spreading across an entire rooftop.

Slash//

On Friday, Amazon.com Inc. said a June 2018 blaze on the roof of one of its warehouses in Redlands, California, involved a solar panel system that Tesla's SolarCity division had installed. The Seattle-based retail giant said by email that it has since taken steps to protect its facilities and has no plans to install more Tesla systems. Tesla didn't immediately respond to a request for comment, but said earlier on Friday that it had discovered flaws in a part that the company had used in some of its systems. The part known as a "connector," manufactured by Amphenol Corp., led to "failures and disconnections at a higher rate than our standards allow," Tesla said in an emailed statement. The company has worked to replace it. 11 Amazon sites are generating energy and are monitored and maintained.

 

also a home problem

https://www.facebook.com/dave.burek/posts/10101061232214385

https://www.businessinsider.com/tesla-solar-panel-fires-become-nightmare-some-homeowners-2019-10

 https://pv-magazine-usa.com/2019/10/29/navy-engineer-wants-infrared-scanning-and-disciplined-data-as-solar-power-standards/

11-5-19

Walmart has dropped a lawsuit that accused Tesla of breach of contract and gross negligence after rooftop solar panel systems on seven of the retailer's stores allegedly caught fire. TechCrunch reports:
A settlement has been reached and stipulation of dismissal has been filed with the court, a Walmart spokesperson said in an email. It is unclear what the settlement entails. TechCrunch has requested more information and will update the article if new details emerge. The two companies issued a joint release Tuesday announcing that the issues raised by Walmart have been resolved. "Safety is a top priority for each company and with the concerns being addressed, we both look forward to a safe re-energization of our sustainable energy systems," the emailed statement reads.

Walmart said it sued Tesla after years of gross negligence and failure to live up to industry standards by Tesla, according to court documents. Walmart asked Tesla to remove solar panels from all 240 locations where they have been installed, as well as pay for damages related to fires that the retailer alleges stem from the panels. The lawsuit points to several fires on the retailer's rooftops that allegedly stem from Tesla solar panels.

 

 

 

Arizona’s Salt River Project Utility Challenged On High Rooftop Solar Rates

In 2015 SRP became anti-solar when it adopted special solar rates (E27) with some high demand charges, etc.  SolarCity, later acquired by Tesla, challenged SRP’s discriminatory solar rates on antitrust grounds. SolarCity/Tesla took the case to the Supreme Court after a lower court rejected its request to dismiss the case. SRP reached a settlement with Tesla before the Supreme Court hearing, and the discriminatory fees were left in place. As part of the settlement SRP agreed to purchase a 25 megawatt/100 MW-hour battery energy storage system from Tesla. This meant that the basic reasons for the lawsuit, challenging the discriminatory rates, were not subject to court review and a chance to rule against SRP. The Center for Biological Diversity filed an Amicus brief against SRP’s motion to dismiss in order to have the Supreme Court consider the antitrust grounds.  

The SRP rates have been proven to stifle rooftop solar, reducing new installations in SRP service areas while installations in other areas of Arizona increased.  SolarCity claimed that SRP’s discriminatory solar rate structure is an obstacle to clean energy transition, because it undermines the value of homeowner investment in these systems. The solar rates were not examined by the courts, SRP basically claimed that it was exempt from regulation in this situation.

The Center for Biological Diversity is an Arizona-based non-profit environmental organization dedicated to the preservation, protection and restoration of biodiversity, ecosystems, and public health. On behalf of its more than 1.5 million members and online activists nationwide, including more than 890 members, and over 15,000 supporters, who live in SRP service territory, the Center advocates for a rapid transition to a clean and just energy system that optimizes renewable energy sources such as distributed solar in order to reduce U.S. greenhouse gas (“GHG”) emissions and combat climate change.

The Center filed an Amicus brief to present three discrete arguments against SRP’s motion to dismiss. First, SRP should not be permitted to rely on state action immunity to shield its discriminatory rate structure from antitrust liability, and certainly not at the pleading stage. Second, state-action immunity for utilities like SRP should in any event be constrained to open the door for distributed solar competition. And finally, SRP is violating the Equal Protection clause because its anti-solar electricity rates have no rational basis.

Charles W. Thurston has a good article on this subject in CleanTechnica:Arizona’s Salt River Project Utility Challenged On High Rooftop Solar Rates

About

  • 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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