Recent Updates

  • 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 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 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 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 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 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 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
  2. Guest Blogs
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. 

Geoff Sutton
25 November 2017

In the desert south-west the intense sunshine and long summer days result in uncomfortable and even dangerously high temperatures for about four months.


Will add Guest Blog content here
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Featured

Some things to pay attention to in Arizona

Reminder- Arizona tax credit information is available here: Arizona Tax Incentives

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The Arizona Corporation Commission has posted a PROPOSED RULEMAKING REGARDING INTERCONNECTION OF DISTRIBUTED GENERATION FACILITIES.

Proposed new rules covering connecting to the utility power grids in Arizona has been posted and a notice by the Hearing Division to hold oral proceedings to receive public comment on the Notice of Proposed Rulemaking on March 28. 2019. at 10:00 am. or as soon as practicable thereafter. in Room 722 at the Commissions offices in Tucson. Arizona and on March 29, 2019. at 10:00 a.m. or as soon as practicable thereafter, in Hearing Room No. I at the Commissions offices in Phoenix. Arizona.

A somewhat complex NOTICE can be downloaded at http://docket.images.azcc.gov/0000195373.pdf

UPDATE 1-24-19: ACC approved new draft interconnection rules At their Jan. 16 meeting, Commissioners preliminarily approved a set of rules that could help link renewables and batteries to the grid, making it easier for customers across the state to utilize.

There is a good description of these new rules and their significance at: https://tinyurl.com/ya24baws

SRP is proposing three new Price Plans for Rooftop Solar

SRP is proposing three new price plans for residential customers who produce their own energy with rooftop solar and other technologies. Two of these options have no demand charge associated with them. See the SRP Proposal. Be sure to open the 'View graphics'. Specific rates are not shown. The Arizona Solar Center will have further details later.

APS announces 2018 ended with 16,479 applications and 14,818 installations: 

APS 2018 PV

Note: APS applications peak in August due to deadlines to freeze APS purchase rates for 10 years.

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/


Upcoming:


Events

War On Solar

Solar Roots Documentary - Movie Trailer

Renewable Energy: An Overview - The Greenhouse Effect

Ninety-three million miles away, the sun blazes energy toward Earth. When this energy reaches Earth, the energy transmitted in short wave-lengths (visible light, ultraviolet, etc.) penetrates our atmosphere and strikes the Earth's surface. Energy in long wavelengths (such as infrared, thermal radiation or heat) is absorbed by carbon dioxide and other gases in the atmosphere. When penetrating short wavelengths strike Earth, they are converted into long wavelengths (in the form of heat radiation) and reflected back toward space. Some thermal radiation escapes, but most of it remains trapped inside our atmosphere. These long waves build up and keep Earth warm. This phenomenon, known as the greenhouse effect, enables life to flourish on Earth.

greenhouse

Its future effects are also the subject of much discussion.As carbon dioxide and certain other gases increase in the atmosphere, more and more of the heat that should escape and radiate into space remains trapped. This trapped heat is the subject of debate within the scientific community. Scientists, lined up on each side of the issue disagree as to whether this heat may cause a rise in global temperatures.

According to the late Carl Sagan, a world-renowned environmental author, the typical global temperature difference between an ice age and an interglacial period is three to six degrees Celsius (5 degrees to 11 degree Fahrenheit). Sagan theorized that if global temperatures were to rise three to six degrees C, water would become warmer and expand, melt polar ice caps and raise sea levels. Under these conditions, many islands would disappear and the oceans would flood such coastal cities as New York, Los Angles and Tokyo. Just a three-foot rise in sea level would triple the size of San Francisco Bay.

Global warming may change precipitation patterns as well. Rainfall could decrease in some areas, causing water shortages and failing crops, while increasing in other areas with attendant flooding and soil erosion. Plants and animals that do not adapt quickly to the changing environment could become endangered species.

Some scientists, however, believe that an increase in global temperature could result in increased crop yields. Higher carbon dioxide levels associated with global warming could be beneficial for plants. If carbon dioxide levels doubled, it is theorized that plants could improve productivity by as much as one-third. Some evidence shows that a rise in carbon dioxide could increase a plant's optimal temperature and allow plants to thrive in warmer temperatures.

Those that subscribe to the greenhouse theory and global warming believe the primary cause of global warming is high emissions of carbon dioxide from industrial processes and the burning of fossil fuels. The U.S. is the world's largest carbon dioxide emitter. The greatest amount of carbon dioxide emitted comes from burning oil, coal and natural gas to produce the electricity that maintains the American standard of living. Transportation is the second largest contributor to the problem. Each car in the United State emits more carbon dioxide per year than the weight of the car.

Some models used by scientists support the theory that an increase in atmospheric carbon dioxide produces global warming. Scientists have been making attempts to measure any difference in global temperature. Researchers at NASA as well as other scientists believe there has been a 0.5 degree C (0.9 degree F) increase in the average global temperature over the last 100 years. Other scientists remain unconvinced. Researchers using the TIROS-N weather satellite to measure the temperature of the lower portions of the atmosphere during the 1980s did not find any detectable warming.

Despite the controversy over whether the global temperature is rising, the greenhouse effect is a well-established theory in atmospheric science. For example, Venus has a dense carbon dioxide atmosphere that could account for its surface temperatures of 426 degrees C (800 degrees F). Mars, with a thin carbon dioxide atmosphere, has an average temperature of -53 degrees C (-63 degrees F). This temperature difference, however, may also be partially explained by the distance of these planets from the sun.

APS STAR Center

 

APS STAR Center redeployed
(December 2011, text provided by APS)

For the last 25 years, the Solar Test and Research (STAR) Center is where Arizona Public Service has worked with manufacturers, universities and government labs to propel technological advancements in converting solar energy into electricity. The goal? To find technologies that would allow solar energy to become a viable resource option for customers.

Success on that front means the STAR Center takes on a new role.

Personnel and focus have transitioned from technology research to solar operations and maintenance. The chief focus is to provide cost-effective support to ensure optimal system production and research the long-term reliability of our solar investments.

Today, more than 21,500 megawatts of solar have been developed globally, with APS having more than 500 megawatts either online or in development. Manufacturers the world over produce roof-integrated tiles; mono- or poly-crystalline photovoltaic panels; solar box ovens; evacuated tube collectors and glazed flat plate collectors; hybrid solar-thermal systems; hybrid solar lighting systems; solar pumps, fans, and switchable windows; mirrors and tracking systems used in trough/parabolic mirror concentrators; and thermal storage systems. And while listing innovations, I’d be remiss not to mention the increasing deployment of passive solar design – well-known to historians and architects, but never studied on site.

This technological cornucopia has overflowed since the STAR Center opened in 1985, and innovation will doubtless continue.

Now, APS is looking to find solutions to the next set of challenges associated with renewable energy. Namely, how the intermittency from solar and wind resources affects APS’s ability to provide reliable and affordable electricity to customers.

So, while the STAR Center will no longer be open to testing and research of new solar technologies, the solar installations currently in place will remain in operation. A majority of the solar panels at STAR will continue to operate and provide clean energy to customers on the APS grid. Those panels that were removed were re-deployed to other solar projects or returned to the manufacturers.

Further, the STAR Center is now also serving as a working laboratory for those learning to install solar electric systems – or for installation companies who are pursuing continuing education opportunities. Though its mission has changed, APS STAR Center will enjoy a long future of service to APS customers and the solar industry.

Contributed by Renee Guillory, DE Partnership Manager, Arizona Public Service

 

     

Past and Present Research

apsstr1
Dish/Stirling

apsstr2
High-concentration PV

apsstr4
PV Test Rig

apsstr3
80 kW PV Power Plant

apsstr5
Inverter Testing

 

Technology Menu

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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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