Solar by state
Solar in Arizona, by the numbers
Utilities and their rates, adoption, ten years of growth, batteries, ownership, state rules and installer licensing in Arizona, from federal 2024 data.
Arizona in brief
10.11% of Arizona homes had rooftop solar in 2024, the 4th-highest of 51 (3.55% nationally). Power cost 14.91¢/kWh, below the national 16.48¢, and the average system was 7.18 kW. Arizona Public Service Company serves 40.2% of homes.
Where does Arizona stand out?
The four measures, beyond price and adoption, on which Arizona sits furthest from the middle of the ranking.
Arizona solar in numbers, 2024
Every Arizona figure next to the national one, with its place in the ranking (highest first, out of the jurisdictions reporting it).
| Measure | Arizona | United States | Rank |
|---|---|---|---|
| Homes with a metered rooftop system | 10.11% | 3.55% | 4th-highest of 51 |
| Rooftop systems counted | 317,033 | 5,077,543 | 2nd-highest of 51 |
| Average system size | 7.18 kW | 6.74 kW | 20th-lowest of 51 |
| Residential price | 14.91¢/kWh | 16.48¢/kWh | 26th-highest of 51 |
| Average monthly bill | $160.24 | $142.26 | 9th-highest of 51 |
| Use per home | 12,899 kWh/yr | 10,359 kWh/yr | 8th-highest of 51 |
| Systems with a battery | 3.26% | 5.86% | 13th-highest of 47 |
| Leased or on a PPA | 34.1% | 29.1% | 10th-highest of 38 |
| Growth in systems, five years | 15.0% a year | — | 11th-lowest of 51 |
| Minutes without power per customer | 84 | 297 (median state) | 2nd-lowest of 51 |
| Homes on a time-varying rate | 39.1% | 11.1% | 5th-highest of 51 |
| Installed rooftop capacity | 2,277.7 MW | 34,226 MW | — |
Source: US EIA, Form EIA-861, 2024 final release, retrieved 2 September 2026. The Arizona ratios and ranks are HyreSolar calculations from EIA inputs.
Which utility serves Arizona, and what does it charge?
The 8 largest utilities selling to Arizona homes, by residential customers, with the price full-service customers paid and how many run net-metered solar.
| Utility | Type | Homes served | Price per kWh | Use per home, monthly | Net-metered systems |
|---|---|---|---|---|---|
| Arizona Public Service Company | Investor-owned | 1,256,120 (40.2%) | 16.45¢ | 1,034 kWh | 182,632 (14.5%) |
| Salt River Project | Public power district | 1,053,407 (33.7%) | 13.46¢ | 1,211 kWh | 59,735 (5.7%) |
| Tucson Electric Power Company | Investor-owned | 412,747 (13.2%) | 15.63¢ | 800 kWh | 51,299 (12.4%) |
| UNS Electric | Investor-owned | 95,191 (3.0%) | 16.02¢ | 924 kWh | 10,228 (10.7%) |
| Trico Electric Cooperative | Co-op | 52,450 (1.7%) | 14.17¢ | 942 kWh | 5,536 (10.6%) |
| Sulphur Springs Valley E C | Co-op | 46,008 (1.5%) | 13.49¢ | 742 kWh | 1,137 (2.5%) |
| Mohave Electric Cooperative | Co-op | 41,009 (1.3%) | 11.20¢ | 987 kWh | 2,183 (5.3%) |
| Navopache Electric Co-op | Co-op | 40,076 (1.3%) | 13.43¢ | 612 kWh | 542 (1.4%) |
Source: US EIA, Form EIA-861 2024, Sales to Ultimate Customers and Net Metering, utility level, retrieved 5 October 2026. Shares are of 3,127,896 Arizona residential accounts. Each Arizona price is residential revenue divided by sales for full-service customers (HyreSolar calculation); a wires company’s price is its default-service price.
What do the Arizona utility figures mean for a solar quote?
EIA-861 lists 19 utilities serving homes in Arizona in 2024, across 3,127,896 residential accounts. The three largest, Arizona Public Service Company, Salt River Project and Tucson Electric Power Company, served 87.0% of those homes. By ownership: investor-owned utilities 56.5%, public power districts 34.9% and electric cooperatives 6.0%.
All 3,127,896 Arizona residential accounts bought energy from the utility that delivers it; EIA counted none on a competitive supplier. So a Arizona utility’s own tariff sets both the price you avoid and the credit for what you export.
Arizona Public Service Company, the largest, served 1,256,120 Arizona homes (40.2%). Its full-service residential customers paid 16.45¢ per kWh, above the Arizona average of 14.91¢, and used 1,034 kWh a month on average. 182,632 of its customers ran net-metered rooftop solar, 14.5% of its homes against 10.11% statewide.
Among the 13 Arizona utilities with at least 5,000 residential customers and a full-service price, the price ran from 11.20¢ at Mohave Electric Cooperative to 19.49¢ at USBIA-San Carlos Project.
At the Arizona average of 12,899 kWh a year, that 8.29¢ gap is worth about $1,069 a year (our arithmetic), so the same system offsets more money in one territory than the other.
Price a quote on your own utility’s rate, not the 14.91¢ Arizona average.
Rooftop solar is concentrated: Arizona Public Service Company alone accounts for 182,632 net-metered residential systems, about 58% of the 317,033 counted in Arizona, and 14 Arizona utilities reported any at all.
What does power cost in Arizona, and why does it matter?
Residential electricity in Arizona averaged 14.91¢ per kilowatt-hour in 2024, the 26th-highest of 51 and below the national 16.48¢. The price sits near the middle of the 51. With the retail rate unremarkable, what your utility pays for exported power can decide the result.
The average Arizona household bill was $160.24 a month ($1,923 a year), the 9th-highest of 51, against $142.26 nationally. That $1,923 is the ceiling on what solar could save a typical Arizona home, before fixed monthly charges.
In Arizona, 39.1% of homes were on a time-varying rate in 2024.
On those rates the hour you use or export power changes its value, so ask for a proposal modeled on your own tariff.
93.4% of Arizona residential meters were smart meters (83.8% nationally), and a time-varying rate needs one. How time-of-use changes solar.
How many Arizona homes have solar?
Arizona had 317,033 rooftop systems on net metering in 2024, across 3,134,733 residential accounts: 10.11% of homes, the 4th-highest of 51. Arizona is one of the most established rooftop markets in the country. A market this size can mean more installers to compare and permit offices used to solar applications.
The Arizona market counted 21,892 more systems in 2024 than in 2023 and has grown 15.0% a year over five years, the 11th-lowest of 51. Where growth has turned nationally.
How has Arizona solar changed since 2014?
Arizona counted 51,282 net-metered rooftop systems in 2014 and 317,033 in 2024, 6.2 times as many. The share of homes with one moved from 1.93% to 10.11%. The biggest one-year addition came in 2022, with 41,168 more systems than the year before.
| Year | Rooftop systems | Share of homes | Average size | Residential price |
|---|---|---|---|---|
| 2014 | 51,282 | 1.93% | 6.1 kW | 11.90¢ |
| 2016 | 86,288 | 3.17% | 6.5 kW | 12.15¢ |
| 2018 | 137,536 | 4.90% | 6.4 kW | 12.77¢ |
| 2020 | 180,847 | 6.24% | 6.6 kW | 12.27¢ |
| 2022 | 256,424 | 8.51% | 7.0 kW | 13.02¢ |
| 2024 | 317,033 | 10.11% | 7.2 kW | 14.91¢ |
Source: US EIA, Form EIA-861 annual files 2014–2024, net-metered residential systems, retrieved 2 September 2026. Arizona shares and sizes are HyreSolar calculations.
What does the Arizona trend mean for a savings estimate?
Over the same years the Arizona residential price went from 11.90¢ to 14.91¢ per kWh, up 25%, and the average system from 6.1 kW to 7.2 kW. A rate that has risen that far makes a 2024 bill a conservative base for a Arizona savings estimate only if the trend continues, which nobody can promise.
How big is a typical Arizona system?
The average Arizona system was 7.18 kW in 2024, the 20th-lowest of 51, against 6.74 kW nationally. Arizona homes used 12,899 kilowatt-hours a year each, the 8th-highest of 51.
A Arizona home using 12,899 kWh is an average, not a design input: size from your own twelve months of bills and usable roof with cost by system size and the system size calculator.
Who owns the systems in Arizona?
In Arizona, 34.1% of systems were third-party owned in 2024: leased, or on a power purchase agreement (PPA), rather than owned by the household. That is the 10th-highest of 38, against 29.1% nationally.
Leases and power purchase agreements are a large share of the Arizona market, so expect one to be offered alongside a purchase. Whoever owns a Arizona system claims any tax credit on it: Section 48E explained.
Do Arizona homes add batteries?
In Arizona, 3.26% of solar systems were paired with a battery in 2024 (10,345 systems), the 13th-highest of 47. Arizona’s share is below the national 5.86%.
On reliability, the average Arizona customer went 84 minutes without power in 2024 counting major storms, and 70 minutes without them. The median state saw 297. Outages in every state.
Whether a battery pays in Arizona turns on your utility’s export credit and your own outage history: what a home battery does.
Which Arizona solar laws have we read?
Arizona statutes we read ourselves. Any rule not listed here is one we have not read, not one that does not exist.
How long you have to cancel a contract
3 business days, from signing; a solar agreement must also grant at least 3 business days to cancel before installation. This is the general home solicitation rule, which reaches solar sales.
A.R.S. §§ 44-5002, 44-1763. Read at source September 2, 2026. Solar sales rules by state
Property tax on the added value
Exclusion from assessed value for devices primarily for on-site consumption; an export-oriented system falls outside.
A.R.S. § 42-11054(C). Read at source September 2, 2026. Property tax exemptions
What an HOA can and cannot block
The Arizona access statute tests an association’s restriction two ways. On cost: no figure: a rule must not adversely affect the cost. On output: no figure: a rule must not impair the system’s functioning.
A.R.S. §§ 33-1816, 33-439 and 44-1761. Read at source September 2, 2026. Solar access rights by state
How do you check a solar company’s license in Arizona?
We checked 65 Arizona solar companies from June to August 2026 against the Arizona Registrar of Contractors. None of those showed an expired or revoked license when checked.
The license classes we found on Arizona solar work are CR-11, R-11, CR-5. Ask which one a company holds, then confirm the number with the issuing authority yourself.
These counts describe the companies we checked on those dates, not every company in Arizona, and a license current then may have lapsed since. How to verify a solar license.
Which states are closest to Arizona on adoption?
The six jurisdictions nearest to Arizona’s 10.11% share of homes with rooftop solar.
Where do the Arizona numbers come from?
The Arizona figures are HyreSolar calculations from the Form EIA-861 annual files: 317,033 net-metered residential systems counted against 3,134,733 residential accounts, sizes as means, and 19 utility-level rows for the utility table, matched to net-metering records by EIA utility number.
The method and limits cover all 51; the Arizona row is in the data as a CSV.
No Arizona figure here is an estimate for one home: your roof, usage, utility tariff and tax position decide that.
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Questions
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Do Arizona homeowners add batteries to solar?
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