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AriSEIA, Has published several articles or letters that are of interest to our Arizona solar community:

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Some things to pay attention to in Arizona (Select Tab)

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 Interesting Arizona Solar Stories 

Coming soon, submit stories to webmaster@azsolarcenter.org


Other Announcements

 

 

 

Interesting Technology Updates -Click on a title below

  • - 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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General News

Caution- News leads open in new windows. Warning- These news links are automatically generated by others such as Google News and are not reviewed by the Arizona Solar Center, Inc. We are not responsible for link content.

Interesting Videos

Should you install solar on your home? 10 key considerations

Arizona's endless sunshine continues to make rooftop solar panels an enticing proposal for homeowners. Already, tens of thousands of Arizonans have installed panels to make electricity for them, and falling prices and new financing options continue to draw consumer interest.

But homeowners should consider several questions before deciding to install rooftop panels. Here are 10 primary considerations you should think about before signing a contract:

Worth a read:

https://www.azcentral.com/story/money/business/energy/2018/07/04/solar-panels-worth-10-things-consider-before-installing/733033002/

Summary of Residential Rate Plans for APS Customers with an On-Site Distributed Generation System

Summary of Residential Rate Plans for APS Customers with an On-Site Distributed Generation System

(Interconnect applications submitted after August 31, 2022)

This is not an official APS document, it is a summary of residential rate plans for APS customers with an on-site distributed generation system put together by the Arizona Solar Center from the rate schedules posted at https://www.aps.com/en/Residential/Service-Plans/Compare-Service-Plans. See the actual rates by following the links at the above APS web page link. These are the charges for energy purchased from APS, see below for backfeed credits (exports of power to the grid, "APS purchase rates" also known as RCP).

APS Rate Plan - Customers with an on-site distributed generation system

Updated July 23, 2021

Bundled rates

SAVER CHOICE

SAVER CHOICE PLUS

SAVER CHOICE MAX

SAVER CHOICE TECH

(Note 2)

Basic Daily Service

$0.427

$0.427

$0.427

$0.427

Energy Charges- per kWh

On-Peak Energy Charge-Summer

$0.24314

$0.13160

$0.08683

$0.05750

Winter

$0.23068

$0.11017

$0.06376

$0.04750

Off-Peak Energy Charge-Summer

$0.10873

$0.07798

$0.05230

$0.04750

Winter

$0.10873

$0.07798

$0.05230

$0.04750

Super Off-Peak Energy Charge

(November through April)

$0.03200

n/a

n/a

n/a

Demand Charges per kW (Note 1)

On-Peak Demand Charge:-Summer

none

$8.40

$17.438

$20.25

Winter

none

$8.40

$12.239

$14.25

Off-Peak Demand Charge:-Summer

none

none

none

$6.50

All above 5 kW

Winter

none

none

none

$6.50

All above 5 kW

APS Purchase Rates- per kWh

For application dates after August 31, 2022 the Tranche 5 RCP export rate will be $0.08465 per KWh

(Future rates to be determined)

$0.08465

$0.08465

$0.08465

$0.08465

Rate Periods for the above:

The On-Peak time period for residential rate schedules is 3 p.m. to 8 p.m. Monday through

Friday year round. Off-Peak time period is the rest of the day and holidays.

The Super Off-Peak period is 10 a.m. to 3 p.m. and applies to those plans with a rate shown above.

Holidays for Off-Peak:

  • New Year’s Day - January 1*
  • Martin Luther King Day - Third Monday in January
  • Presidents Day - Third Monday in February
  • Cesar Chavez Day - March 31*
  • Memorial Day - Last Monday in May
  • Independence Day - July 4*
  • Labor Day - First Monday in September
  • Veterans Day - November 11*
  • Thanksgiving - Fourth Thursday in November
  • Christmas Day - December 25*

*If these holidays fall on a Saturday, the preceding Friday will be Off-peak. If they fall on a

Sunday, the following Monday will be Off-Peak.

APS Residential bills will include the following adjustments:

  1. The Renewable Energy Adjustment Charge, Adjustment Schedule REAC-1. (
  2. The Power Supply Adjustment charge, Adjustment Schedule PSA-1.
  3. The Transmission Cost Adjustment charge, Adjustment Schedule TCA-1.
  4. The Environmental Improvement Surcharge, Adjustment Schedule EIS.
  5. The Demand Side Management Adjustment charge, Adjustment Schedule DSMAC-1.
  6. The Lost Fixed Cost Recovery Adjustment charge, Adjustment Schedule LFCR.
  7. The Tax Expense Adjustor Mechanism charge, Adjustment Schedule TEAM.
  8. Direct Access customers returning to Standard Offer service may be subject to a Returning Customer Direct Access Charge, Adjustment Schedule RCDAC-1.
  9. Any applicable taxes and governmental fees that are assessed on APS’s revenues, prices, sales volume, or generation volume.

And these Rate riders:

  • CPP -(RES) Critical Peak Pricing (Residential)
  • EPR-2 - Partial Requirements
  • EPR-6 - Partial Requirements – Net Metering (Residential Non-Solar)
  • RCP - Resource Comparison Proxy (This is for solar generation exports of power to the grid)
  • E-3 - Limited income discount
  • E-4 - Limited income medical discount
  • GPS-1, GPS-2, GPS-3 Â Green Power

Notes:

  1. The kW used to determine the demand charge above will be the Customer's highest amount of demand (kW) averaged in a one-hour On-Peak period for the billing month.
  2. The SAVER CHOICE TECH rate schedule is available to residential Customers with the following:
    1. 1. Two or more qualifying primary on-site technologies purchased within 90 days of the customer enrolling in the rate; or
    2. 2. One qualifying primary on-site technology purchased within 90 days of the customer enrolling in the rate and two or more qualifying secondary on-site technologies.

 

 

Eclipse Effect on Mesa PV System

This is a plot of PV system output on August 21, 2017 in Mesa, Arizona.  Note the morning dip caused by the partial eclipse. The red line is the calculated average for the date, based on historical data.

Sonnen Signs a Deal to Put Storage in New Arizona Housing Developments

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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