Solar in Tucson, AZ: TEP Net Billing, Real Costs, and Arizona Incentives

Rooftop solar panels on a Tucson desert home with saguaro cactus and the Catalina foothills under bright clear sky

In most of the country solar pays because power is expensive. Tucson is the opposite case: the electricity rate is fairly average, but the sun is relentless, the install cost is among the lowest in the nation, and a south-facing roof here produces more per panel than almost anywhere. The catch for Tucson homeowners in 2026 is not whether solar works, it is the local rules: Tucson Electric Power (TEP) now pays you a fixed export rate under net billing instead of full retail net metering, you have to be on a Time-of-Use plan, and the math rewards using your own power during the day. This page lays out what solar actually costs in Tucson, how TEP credits what your roof sends back, the Arizona incentives you can still claim, and the local permitting and HOA rules, so you can decide before you ever fill out a form.

Tucson solar, the sunshine-first version (updated for 2026)

  • Sun, not high rates, is why solar pays in Tucson. A 6 kW system in Tucson is modeled at about 10,740 kWh a year (ZIP 85710), one of the strongest solar resources in the U.S. at roughly 6.6 sun-hours a day (NREL PVWatts, as of June 2026).
  • Arizona power is moderately priced, averaging about 15.48 cents per kWh for residential customers (EIA, as of April 2026), so the savings come from sheer output plus a low install cost.
  • TEP uses net billing, not net metering. New rooftop solar is paid a fixed export rate (the Resource Comparison Proxy, or Rider-14), reported near 5.13 cents per kWh (DSIRE, as of February 2026); confirm the current figure in TEP’s tariff.
  • You install cheap here. Arizona’s average installed price is about $2.15 per watt (EnergySage, as of June 2026), so a 6 kW system runs near $12,900 before incentives.
  • Arizona still has a state solar tax credit: 25% of the system cost, capped at $1,000, under A.R.S. 43-1083 (AZ Dept. of Revenue, as of 2026), plus sales-tax and property-tax exemptions.
  • The 30% federal homeowner credit (Section 25D) ended after December 31, 2025 (IRS, as of January 1, 2026), so a Tucson homeowner who buys in 2026 cannot claim it.

Why Tucson solar pays on sunshine, not sky-high rates

The reason solar works in Tucson is the resource, not the rate. Arizona residential electricity averages about 15.48 cents per kWh (EIA, as of April 2026), which is close to the middle of the pack nationally and far below the high-cost Northeast. What makes the Tucson math work is on the other side of the equation: the area gets roughly 6.6 peak sun-hours a day, so a standard 6 kW array is modeled to produce about 10,740 kWh a year in ZIP 85710, a level of output that takes a much larger system to reach in cloudier climates (NREL PVWatts, as of June 2026). More production from the same panels, at one of the lowest install prices in the country, is the Tucson advantage.

Your own roof drives the number, so estimate it before you size a system. Production swings with pitch, shading, and orientation, and even within Tucson the modeled output ranges from about 10,560 to 10,740 kWh a year across ZIP codes for the same 6 kW system (NREL PVWatts, as of June 2026). Because TEP now pays a lower price for power you export than for power you use yourself (more on that below), the smart design is to cover your own daytime use rather than build the biggest array that fits. Run your address through the free PVWatts calculator to estimate your roof before you talk to installers.

System size Estimated Tucson production (per year) What it tends to cover
4 kW about 7,200 kWh a smaller or efficient home
6 kW about 10,740 kWh a typical Tucson household
8 kW about 14,300 kWh a larger home or one adding an EV

Estimates scale the PVWatts 6 kW result for ZIP 85710 (about 10,740 kWh per year) linearly by system size; your actual production depends on your roof and equipment (NREL PVWatts, as of June 2026).

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What does solar cost in Tucson, and when does it pay back?

A typical Tucson system costs less up front than in most of the country, and the state credit trims it further. At Arizona’s average price of about $2.15 per watt (EnergySage, as of June 2026), a 6 kW system runs near $12,900 before incentives. Arizona’s state solar tax credit then knocks off 25% of the cost up to a $1,000 cap, bringing a cash buyer’s net cost to roughly $11,900 (AZ Dept. of Revenue, as of 2026). The table below is our own estimate built from the rate, production, and cost figures on this page, so you can follow the math and swap in your own numbers.

Input or assumption Value used Source
System size 6 kW example
Estimated production about 10,740 kWh per year PVWatts, ZIP 85710, June 2026
Installed cost at $2.15 per watt about $12,900 EnergySage, June 2026
Less Arizona state credit (25%, $1,000 cap) minus $1,000 AZ DOR, 2026
Net cost after the state credit about $11,900 computed
Retail electricity rate (what you avoid buying) 15.48 cents per kWh EIA, April 2026
TEP export credit (what extra power earns) about 5.13 cents per kWh DSIRE, February 2026

Because TEP pays less for exports than for the power you use, how much you save depends on how much you use during the day. If you consume most of your output yourself, each kWh offsets a 15.48-cent retail kWh, and 10,740 kWh is worth about $1,660 a year, a simple payback near 7 years on roughly $11,900 net. If about half your output is exported at the lower 5.13-cent rate, first-year savings land closer to $1,150, a payback near 10 years. Most Tucson homes without a battery fall between these, which is why sizing to your own daytime use, or pairing a battery, matters more here than in a full-retail net-metering state.

Estimated first-year savings (6 kW, about 10,740 kWh) How your energy is valued Simple payback on about $11,900
about $1,400 to $1,660 most output used on-site at the 15.48-cent retail rate about 7 to 8.5 years
about $1,100 to $1,250 roughly half exported at the 5.13-cent net-billing rate about 9.5 to 11 years

Note: These are estimates to show the method, not a quote. They use the AZ average rate and price and a 6 kW PVWatts run, with no electricity-price inflation and no financing cost. They also leave out TEP’s monthly fixed service charge and the timing effect of Time-of-Use peak pricing, both of which move a real bill. Your actual payback depends on your roof, your usage pattern, your TEP rate plan, and whether you add storage. Confirm TEP’s current export rate and rate plans before you sign anything.

How TEP pays you for solar: net billing, not net metering

Diagram of solar net billing: power used on-site offsets the retail rate while exported power earns a lower fixed export rate

This is the single most important thing to understand before going solar in Tucson. Tucson Electric Power no longer offers traditional retail net metering to new rooftop solar customers. Instead, new systems are compensated under net billing: the power you use in real time offsets the retail rate, but the surplus you export to the grid is bought back at a fixed, lower export rate called the Resource Comparison Proxy, or Rider-14 (TEP, Beyond Net Metering, as of 2026). DSIRE reports that export rate at about 5.13 cents per kWh as of February 2026 (DSIRE, as of February 2026). That figure comes from an aggregator rather than the tariff sheet itself, so treat it as a planning number and confirm the live Rider-14 rate with TEP before you commit.

Two more TEP-specific rules shape your design and your bill. First, TEP resets the export rate once a year, based on a rolling five-year average of its solar energy costs, so the buyback price you get can step down over time; locking in your interconnection sooner rather than later is generally better, and your installer can advise on timing (TEP, as of 2026). Second, new residential solar customers must take service on a Time-of-Use pricing plan rather than TEP’s standard Basic plan, which means grid power costs more during a peak window in the late afternoon and early evening; confirm your plan’s exact peak hours with TEP, because shifting big loads like laundry, the dishwasher, and EV charging out of that window protects your savings. For the statewide picture of how Arizona’s utilities moved off retail net metering, see our Arizona solar guide. Comparing nearby metros? See our guides to Phoenix solar on APS and SRP, Mesa solar, and Scottsdale solar. For how we run the production and rate figures behind these guides, see our data and methodology.

Feature Old retail net metering TEP net billing today (new solar)
Value of exported power near the full retail rate a fixed export rate, about 5.13 cents per kWh (DSIRE, Feb 2026)
Rate certainty one-for-one with retail export rate reset once a year off a 5-year average
Required rate plan any residential plan a Time-of-Use plan, not standard Basic
Best design move build large size to your daytime use, consider a battery

Arizona solar incentives that still apply in Tucson in 2026

Beyond the bill savings, a Tucson homeowner who owns the system can stack three Arizona benefits. These go to the system owner, so on a lease or PPA the company that owns the panels keeps them while you get the lower power price. We keep the full statewide detail on our Arizona solar incentives guide; here is what applies to a Tucson install.

  • The Arizona Residential Solar Energy Credit is a state income-tax credit worth 25% of your system cost, capped at $1,000 per residence, nonrefundable with a five-year carryforward, under A.R.S. 43-1083 (AZ Dept. of Revenue, Credit for Solar Energy Devices, as of 2026).
  • Arizona’s solar equipment sales-tax exemption means you pay no state transaction privilege (sales) tax on the qualifying solar equipment and its installation (DSIRE, as of March 2026).
  • Arizona’s energy equipment property-tax exemption means the value a solar system adds to your home is not assessed for property tax (DSIRE, as of March 2026).
Incentive What it does for a Tucson owner Source (as of)
AZ Residential Solar Energy Credit (A.R.S. 43-1083) 25% of cost, capped at $1,000, 5-year carryforward AZ DOR (2026)
AZ solar sales-tax exemption no state sales tax on equipment and install DSIRE (Mar 2026)
AZ property-tax exemption added home value from solar is not taxed DSIRE (Mar 2026)
Federal residential credit (Section 25D) ended for systems placed in service after 12/31/2025 IRS (2026)

The federal solar credit ended in 2025; Arizona’s incentives did not

The federal homeowner credit is gone, but Arizona’s incentives are not. The 30% federal Residential Clean Energy Credit (Section 25D) ended for systems placed in service after December 31, 2025, under the One Big Beautiful Bill Act, so a Tucson homeowner who buys solar with cash or a loan in 2026 cannot claim it (IRS, as of 2026). You will still see installer pages and search results asking whether the 30% credit is going away in 2026; the accurate answer is that the homeowner version already ended. Arizona’s state credit, its sales-tax and property-tax exemptions, and TEP’s export credit were not affected. For the full timeline, see what the federal solar tax credit change means in 2026.

One federal exception exists, and it is not yours to claim. A separate commercial credit, Section 48E, is claimed by the business that owns a leased or PPA system, not by the homeowner (IRS, as of 2026). On a leased system in Tucson you do not file for a federal credit yourself; the company that owns the panels does. The 25D homeowner credit, by contrast, ended after December 31, 2025.

Permits in Tucson and Pima County are now nearly instant

Tucson is one of the easier places in the country to permit a rooftop system. Both the City of Tucson and Pima County use NREL’s SolarAPP+, an automated plan-review tool that issues a permit instantly for standard, code-compliant residential solar (and often solar-plus-storage) once the installer submits a compliant design (NREL SolarAPP+, as of 2026). For eligible projects this replaced a review that used to take weeks with a same-day approval, so the timeline on a straightforward Tucson install is usually driven by your installer’s schedule and TEP’s interconnection step, not the permit office. Complex or non-standard systems still go through traditional plan review.

Note: Instant permitting applies to standard systems. If your roof, panel, or design is unusual, or you are also upgrading your electrical service, expect a normal review. Always confirm the current process and any fees with the City of Tucson or Pima County building department for your address.

Your HOA cannot ban your panels in Arizona

If you live in a Tucson HOA, state law is on your side. Arizona’s solar-rights law voids covenants that would effectively prohibit rooftop solar: A.R.S. 33-1816 covers planned communities and homeowners associations, and A.R.S. 33-439 covers condominiums (DSIRE, Arizona Solar Rights, as of 2026). An association can still set reasonable rules on placement or appearance, but it cannot impose conditions that materially raise your cost or cut your system’s output. If your HOA pushes back, this is the law to cite, and an experienced local installer will have handled the approval paperwork many times before.

Paying for solar in Tucson: cash, loan, lease, or PPA

There is no single right way to pay for solar; the best fit depends on whether you want to own the system and claim the Arizona credit yourself, or avoid any up-front cost. A lease or PPA can mean no up-front cost for eligible homeowners, but it is a long-term agreement with monthly payments, not free solar, and the system owner, not you, keeps the state tax credit. To weigh the long-run numbers, see our Arizona solar guide.

Path Up-front cost Who keeps the Arizona credit and exemptions Best when
Cash purchase full system cost you, the owner you want the fastest payback and the most lifetime savings
Solar loan little to none, financed you, the owner you want ownership without paying cash up front
Lease or PPA $0-up-front where eligible the third-party owner you prefer no up-front cost and a simpler, fixed monthly bill

How to choose a solar installer in Tucson

Tucson has a deep bench of established local installers, which means real competition on price and service. Rather than chasing a “best installer” list, screen any company against objective criteria:

  • A current Arizona Registrar of Contractors (ROC) license for the solar and electrical work, which Arizona requires of contractors who install residential solar; you can verify any contractor’s license with the state (DSIRE, Arizona solar contractor licensing, as of 2026).
  • NABCEP certification, the industry’s professional standard for PV installers.
  • A clear workmanship and equipment warranty in writing.
  • Real experience with TEP interconnection, the required Time-of-Use rate plan, and Tucson or Pima County SolarAPP+ permitting, so the paperwork and Permission to Operate go smoothly.
  • A written production estimate and a transparent quote that uses TEP’s current export rate, not an old net-metering assumption. To learn how we research and match, see how MySolarFY works.

MySolarFY matches you with licensed installers that serve your area so you can compare real local quotes side by side, with no obligation.

See which solar programs are available at your Tucson address →

Frequently asked questions

Is solar worth it in Tucson in 2026?

For most owner-occupied Tucson homes with decent sun exposure, yes, but the reason is different from high-rate states. Arizona electricity is moderately priced at about 15.48 cents per kWh (EIA, as of April 2026), so the payback comes from Tucson’s exceptional sun, about 10,740 kWh a year from a 6 kW system (PVWatts, as of June 2026), and one of the lowest install prices in the country. With the Arizona state credit and TEP’s export credit, a cash system often pays back in roughly 7 to 10 years depending on how much power you use during the day. Savings are not guaranteed and depend on your roof, usage, and how you pay.

Does TEP still offer net metering?

No. Tucson Electric Power moved new rooftop solar to net billing, so your exported power is bought back at a fixed export rate (the Rider-14 Resource Comparison Proxy) rather than credited at the full retail rate (TEP, as of 2026). DSIRE reports that export rate near 5.13 cents per kWh as of February 2026, well below the roughly 15-cent retail rate, so the value of your system depends on using more of your own power during the day (DSIRE, as of February 2026). TEP resets the export rate once a year, and new solar customers must take a Time-of-Use plan, so confirm the current rate and plan with TEP before you sign.

How much do solar panels cost in Tucson?

At Arizona’s average price of about $2.15 per watt, a 6 kW system runs near $12,900 before incentives (EnergySage, as of June 2026). Arizona’s state solar tax credit takes 25% off, capped at $1,000, bringing a cash buyer’s net to roughly $11,900 (AZ DOR, as of 2026). Your real price depends on system size, equipment, roof complexity, and whether you add a battery. Because TEP pays less for exported power than the retail rate, a slightly smaller system sized to your own daytime use often beats the largest array that fits. Get itemized quotes from licensed installers and compare cost per watt.

What solar incentives can I still get in Arizona?

Three state benefits still apply in 2026: the Arizona Residential Solar Energy Credit, worth 25% of your system cost up to $1,000 under A.R.S. 43-1083; a state sales-tax exemption on the equipment and installation; and a property-tax exemption on the home value the system adds (AZ DOR, as of 2026; DSIRE, as of March 2026). The 30% federal Residential Clean Energy Credit (Section 25D) is the one that changed: it ended for systems placed in service after December 31, 2025, so a 2026 buyer cannot claim it (IRS, as of 2026). MySolarFY does not provide tax advice; confirm your situation with a tax professional.

Do I need a permit for solar in Tucson, and how long does it take?

Yes, you need a building permit, but Tucson is unusually fast. Both the City of Tucson and Pima County use NREL’s SolarAPP+, which issues a permit instantly for standard, code-compliant residential systems once your installer submits a compliant design (NREL SolarAPP+, as of 2026). That turned a multi-week review into same-day approval for eligible projects, so your timeline is usually set by your installer and by TEP’s interconnection step, not the permit office. Non-standard systems or a project that also upgrades your electrical service still go through traditional plan review, so confirm the current process and fees for your address.

Can my HOA stop me from installing solar in Tucson?

No. Arizona’s solar-rights law voids homeowners-association and condo covenants that would effectively prohibit rooftop solar, under A.R.S. 33-1816 for planned communities and A.R.S. 33-439 for condominiums (DSIRE, as of 2026). Your association can set reasonable rules on appearance or placement, but it cannot impose conditions that materially raise your cost or reduce your system’s performance. If you hit resistance, cite the statute, and lean on an installer who has navigated Tucson-area HOA approvals before, since they will know what documentation the board needs.

Can I get solar with no up-front cost in Tucson?

Some homeowners can, through a lease or power purchase agreement (PPA) where eligible, which can mean no out-of-pocket cost at installation in exchange for monthly payments. This is not free solar; it is a long-term agreement, typically 20 to 25 years, and total payments may exceed the cost of a cash purchase. On a lease or PPA the third-party owner, not you, keeps the Arizona state tax credit and the exemptions, while your benefit is a lower or fixed power price. If you want to own the system and capture the state credit yourself, a cash purchase or solar loan is the path that keeps it. Check what you qualify for before deciding.


Reviewed by the MySolarFY team. Figures were verified against the linked EIA, NREL PVWatts, Arizona Department of Revenue, DSIRE, TEP, and IRS sources as of June 2026; TEP’s Rider-14 export rate, its rate plans, Arizona incentive terms, and Tucson permitting can change, so confirm current terms with TEP, the City of Tucson, Pima County, and the Arizona Department of Revenue before you decide. MySolarFY does not provide tax or financial advice; consult a licensed professional about your own situation. Learn more about how MySolarFY works.

MySolarFY is a free service that matches homeowners with licensed solar installers. We are not an installer, financing company, or government program. “No up-front cost” refers to qualifying lease or PPA financing, where eligible homeowners may have no out-of-pocket cost at installation. Lease and PPA terms typically run 20 to 25 years, may include an annual price escalator, and total payments may exceed the cost of a cash purchase; on a lease or PPA the Arizona state tax credit and exemptions go to the company that owns the system, not the homeowner. Homeowners do not get the federal residential credit that ended after December 31, 2025. Solar panels are not free and monthly payments apply. Eligibility, savings, incentives, and rates vary and are not guaranteed. See our full disclaimer.

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