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Is Solar Worth It in Drexel Heights, Arizona?

We analyzed Tucson Electric Power (TEP) rate books, NREL irradiance data, and Arizona tax codes to calculate the real ROI for homeowners in 85706.

Market Snapshot

Elec. Rate
$0.135/kWh
Sun Hours
6.57
Utility Tucson Electric Power (TEP)
Tax Exempt Yes
Battery Required

Analyst Note: The "4kW Benchmark"

The analysis below uses a standardized 4kW system to provide a fair baseline comparison across cities. However, the average electric bill in Drexel Heights is $155.25.

⚠️ Most homes here will need a larger system (8kW–12kW) to reach 100% offset. Use the calculator below for your exact numbers.

For homeowners in Drexel Heights, those summer air conditioning bills from Tucson Electric Power (TEP) are a serious budget drain. Rooftop solar offers a powerful way to take control of those rising costs. With over 300 days of sunshine near Tucson, your roof is a prime asset for generating clean, affordable energy. The key in 2026 is pairing your panels with a battery to get the most value under TEP's rules.

Skip ahead to a personalized savings estimate for your home.

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Benchmark Cost Analysis

Average Solar Panel & Battery Costs in Drexel Heights

In 2026, the standard solar installation for a home in the Tucson area includes a battery. This is crucial for maximizing your savings with TEP. While a basic solar-only system can be installed for as little as $7,050 after incentives, it offers poor returns due to TEP's low export rates.

Here's the realistic breakdown for a system that delivers real energy independence and savings:

  • Typical Gross Cost (15-panel system with battery): $23,500
  • Federal & State Tax Credits: You deduct $8,050 ($7,050 Federal ITC + $1,000 AZ State credit).
  • Your Final Net Cost: Approximately $15,450

Incentives & Tax Credits

Maximizing Your Savings with Tax Credits

Arizona's solar incentives make a huge difference in affordability. Every Drexel Heights homeowner qualifies for:

  • The 30% Federal ITC: This is a dollar-for-dollar credit against your federal income taxes. On a $23,500 system, it saves you $7,050 right away. This incentive is available through 2032.
  • $1,000 Arizona State Tax Credit: An additional state-level credit to lower your tax bill.
  • Full Tax Exemptions: Arizona law makes your solar investment 100% exempt from sales tax and ensures it won't raise your property taxes.

Net Metering: Tucson Electric Power (TEP)

Policy Status

Net Billing (2024)

Battery Priority

Critical 🔋

Navigating TEP's Net Billing Program

TEP's program is no longer traditional net metering. It's 'Net Billing', which means they pay you a low wholesale rate for any excess power you send to the grid—roughly 6-8 cents per kWh. At the same time, you pay the full retail rate of about 13.5 cents per kWh to buy power from them. This financial gap is precisely why a battery is so critical. Storing your excess solar is far more valuable than selling it to TEP for pennies on the dollar.

Projected Savings

How Much Can You Save on TEP Bills?

A solar-plus-battery system allows you to store the energy you generate during the day and use it during peak evening hours, when TEP's rates are highest. This self-consumption model is the key to big savings. A Drexel Heights family with a typical electric bill can expect to save around $912 per year. Beyond the bill savings, a battery provides peace of mind with backup power during grid outages, a common concern during intense monsoon storms.

Local Questions Answered

How does the intense Drexel Heights heat affect solar panels?
High-quality modern solar panels are designed to perform well in hot climates like Southern Arizona. While all panels experience a slight reduction in efficiency on extremely hot days, the overall annual production from the sheer volume of sunshine far outweighs this minor effect. Proper installation with good airflow is key.
Is my roof suitable for solar panels?
Most roofs in the Tucson area are great for solar. South-facing roofs are ideal, but east- and west-facing roofs also generate excellent power. Our calculator can provide an initial assessment based on your home's orientation and any potential shading from trees or nearby structures.
Why is TEP's export rate so low?
Utilities across Arizona, including TEP, have shifted to 'avoided cost' rates for solar exports. They argue this reflects the wholesale price of energy. This policy shift is the primary driver behind the strong recommendation for homeowners to pair solar panels with a battery storage system.

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* Calculations based on Tucson Electric Power (TEP) residential rates (0.135/kWh).

Data Transparency & Methodology

Estimates for Drexel Heights, Arizona are produced by the SunCents Solar Engine (v1.2). We combine the following verified or standard industry sources:

Performance (PV production)

NREL PVWatts — modeled annual and hourly AC output (kWh), solar radiation, and system losses for a standardized array size so cities can be compared fairly.

nrel.gov

Electricity rates (tariffs)

U.S. Energy Information Administration (EIA) — state-level average retail electricity prices ($/kWh) and supporting series for economic context.

eia.gov

Incentives & programs

DSIRE — state and local rebates, net metering, and policy programs (summarized for readability; always confirm eligibility with a tax or solar professional).

dsireusa.org

Federal tax credit (ITC)

Investment Tax Credit — federal residential solar credit (e.g. 30% of qualified costs where applicable); rules change with statute—verify with a qualified advisor.

energy.gov

Utilities & interconnection

Where shown, local utilities (e.g. APS, PG&E, FPL, and other IOUs or munis) are mapped from public interconnection, tariff, or service-territory references so net metering and rider rules match your area—not generic national averages.