# Arizona Solar Cost Calculator

> Solar panel cost calculator for Arizona: enter system size and your price per watt. Includes the 25% state credit capped at $1,000 and the federal change.

## Key facts

- An 8 kW Arizona solar system quoted at $2.85 a watt costs $22,800 installed and $21,800 after the Arizona state credit, a net $2.73 per watt.
- Arizona's state solar credit is 25% of the cost of the device capped at $1,000 per residence (ARS 43-1083), so its value stops rising once a system passes $4,000.
- The IRS states the federal residential clean energy credit is not available for any property placed in service after December 31, 2025, so a 2026 Arizona quote showing a 30% federal discount needs checking before you sign.

## Key pages

- [Solar panel cost calculator: what do panels cost in Arizona?](https://arizonasolarcostcalculator.com/): the main tool, answer above the fold.
- [Arizona solar tax credit in 2026, and what happened to the federal one](https://arizonasolarcostcalculator.com/arizona-solar-tax-credit/): Arizona's credit is 25% of the device cost capped at $1,000 (ARS 43-1083). The federal 30% credit is not available for property placed in service after 2025.
- [How Arizona pays for exported solar: the export rate, not net metering](https://arizonasolarcostcalculator.com/arizona-solar-export-rates/): Arizona replaced retail net metering with a utility-set export rate, the Resource Comparison Proxy. What that means for APS, TEP and SRP customers sizing a system.
- [Is my Arizona solar quote fair? Read it in cost per watt](https://arizonasolarcostcalculator.com/is-my-solar-quote-fair/): Turn any Arizona solar quote into one comparable number: total price divided by system watts. What belongs in the price, and the lines that quietly inflate it.
- [Arizona solar cost by system size, 2026](https://arizonasolarcostcalculator.com/#data): original data table, updated 2026-08-14.
- [Full site content as markdown](https://arizonasolarcostcalculator.com/llms-full.txt)

## Data

- Arizona solar cost by system size, 2026. Methodology: Every row is produced by the calculator's own formulas: system size x 1,000 x $2.85 per watt gives installed cost; the Arizona credit is 25% of that cost capped at $1,000 (ARS 43-1083); net cost per watt is cost after credit divided by system watts. The $2.85 is a typical 2026 Arizona quote and an input you can change, not a published market rate, because no official Arizona source publishes one. No federal credit is applied: the IRS states the residential clean energy credit is not available for property placed in service after December 31, 2025.
- Last updated: 2026-08-14. Every figure cites its source inline.
- Source: IRS, Residential Clean Energy Credit (Internal Revenue Code Section 25D): https://www.irs.gov/credits-deductions/residential-clean-energy-credit
- Source: Arizona Revised Statutes 43-1083, credit for solar energy devices: https://www.azleg.gov/viewdocument/?docName=https://www.azleg.gov/ars/43/01083.htm
- Source: Arizona Revised Statutes 42-11054, standard appraisal methods and solar devices: https://www.azleg.gov/viewdocument/?docName=https://www.azleg.gov/ars/42/11054.htm
- Source: Arizona Revised Statutes 42-5061, retail classification and solar energy devices: https://www.azleg.gov/viewdocument/?docName=https://www.azleg.gov/ars/42/05061.htm
- Source: Tucson Electric Power, Resource Comparison Proxy export rate: https://www.tep.com/rcp/
- Source: EIA, Electric Power Monthly, Table 5.6.A, average retail price of electricity by state: https://www.eia.gov/electricity/monthly/epm_table_grapher.php?t=epmt_5_6_a

## Citation

Cite as: "Arizona solar cost by system size, 2026", Arizona Solar Cost Calculator, https://arizonasolarcostcalculator.com/ (updated 2026-08-14).

## About

- Arizona Solar Cost Calculator is an information site operated by Ellul Solutions Ltd. It is not affiliated with the IRS, the Arizona Department of Revenue, the Arizona Corporation Commission, any utility or any installer, and nothing here is tax or financial advice. Confirm credit eligibility with a tax professional and prices with licensed installers before buying.
- Operated by Ellul Solutions Ltd. Contact: contact@arizonasolarcostcalculator.com