Based on: 40 kWh/day usage · 13 kW solar · 5 kWh battery · typical tariffs

Solar & Battery Savings in Arizona, United States Get quotes from local installers

Design solar and battery systems for Arizona using Photonik's professional design platform. Arizona ranks among the top US states for rooftop solar adoption, with excellent sun hours and a large installed base in the Phoenix and Tucson metros. Major utilities APS and SRP offer export compensation below full retail, so self-consumption and battery storage strongly affect payback. Arizona exempts qualifying solar equipment from property tax increases.

Compare solar savings and payback across US states →

Solar Energy Savings in Arizona

How Solar Reduces Your Electricity Bills

The calculations below show how your electricity bills change with solar.

Calculating...

Based on: 40 kWh/day usage · 13 kW solar · 5 kWh battery · typical tariffs

Adjust these amounts in the next section

Old Bill (Before Solar): Monthly: 264.0 | Annual: 3168.0

New Bill (With Solar): Monthly: 115.0 | Annual: 1375.0

Monthly Savings: $ 149.0 | Annual: $1793.0 | Bill Savings: 57%

Monthly Savings

$ 149.0

Annual savings: $1793.0 | Bill Savings: 57%

What drives your savings in Arizona

Arizona's retail electricity rates average around 13c/kWh — moderate nationally — but export credits from APS and SRP typically run closer to 7c/kWh under current net billing rules, making daytime self-use the main savings lever. Excellent solar irradiance of 5–6 kWh/m²/day in the Phoenix and Tucson basins supports strong year-round generation. Arizona exempts the added value of solar from property tax assessments, and while there is no state income tax credit, the combination of good sun, rising summer cooling loads, and competitive install pricing keeps residential solar attractive — especially when paired with storage to shift solar into evening peak hours.

Panel Placement Tool Arizona

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This is a simplified panel layout tool — if you hit issues here, or need multiple groups, shading, or generation calcs, use the full Photonik design tool.

Your usage & system size Arizona

Energy usage & tariffs

Energy consumption patterns in Arizona reflect the state's hot, dry climate, with high cooling needs during long summers. The average Arizona household uses between 35-50 kWh per day, with higher consumption during summer months for air conditioning. Energy-efficient properties throughout Arizona often use significantly less through modern insulation, efficient HVAC systems, and smart thermostats that optimize cooling schedules.

Before installing solar, consider reducing your energy consumption through improved insulation and energy-efficient appliances. This is particularly valuable in Arizona, where high summer electricity usage makes reducing consumption a sound investment that can lower required solar system size and improve returns.

Daily Energy Usage: 40 kWh (~$264.0/month)

5 kWh 100 kWh

Electricity Cost

$ /kWh

Sell Price (FiT)

$ /kWh

Self Use %

lightbulb Note: These are simplified estimates. For detailed tariff inputs and advanced calculations, use the full Photonik app.

Representative flat export rate (feed-in tariff). What you earn per kWh of surplus solar exported to the grid. Your actual rate depends on your provider, plan, and time of day.

See how export rates work →

Estimated at 75% of the retail grid rate. A battery lets you store daytime solar and export during expensive peak hours, so each exported kWh is typically worth more than a flat feed-in tariff. Real returns depend on your time-of-use tariff and battery efficiency.

See how export rates work →

Solar system size

You'll need around 10.5kW of solar to match your average consumption in Arizona. We recommend sizing between 15.8kW and 21.1kW for optimal results, accounting for daily and seasonal variations. Arizona enjoys excellent solar potential, with most regions averaging 4.5-5.5 kWh/kW/day annually, amongst the highest in the US, with strong generation throughout most of the year.

A 15.8 kW system in Arizona generates approximately 68.3 kWh daily on average, with seasonal variation from 3.47 kWh/kW/day in December to 4.83 kWh/kW/day in April. Arizona's exceptional solar irradiance, combined with rising summer cooling loads, makes solar particularly attractive for homeowners across the state.

Solar System Size: 13 (56 kWh/day)

1 kW 20 kW

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A 13 kW system in Arizona can generate approximately 20523.0 kWh annually based on local sun conditions.

Battery storage

With solar-only (no battery), a 15.8 kW system provides approximately 50% self-usage in Arizona, depending on your consumption patterns, drawing 50% from the grid. Adding a 10 kWh battery increases energy independence to approximately 72% annually, reducing grid reliance to 28%. Battery storage is especially valuable in Arizona, where export credits are typically lower than retail rates — shifting solar into evening use maximises savings.

A battery shifts solar energy from daytime overproduction into evening peak use, avoiding the highest time-of-use rates. Virtual power plant programs are expanding — battery owners can earn additional income by dispatching stored energy during grid peak events. For accurate battery savings and ROI calculations specific to your utility, use the full Photonik design tool.

Battery Size: 5 kWh

0 kWh 30 kWh

lightbulb A 0kWh battery will make you about 0% self sufficient.

The sweet spot for most households is 5 – 13 kWh — larger batteries add independence but with diminishing payback, especially where feed-in tariffs are low.

System Pricing & Payback for Arizona

Use the full Photonik solar planning and design platform to model a complete system for your home — including detailed costs, equipment options, and financial returns.

Try Photonik Solar Design

For a quick price guide, see the United States solar calculator.

Solar Installers Phoenix

Phoenix is Arizona's largest solar market. APS serves most of the metro; SRP covers much of the East Valley. Summer cooling drives bills well above the state average — often 40–50 kWh/day in July–August. Flat and low-slope tile roofs are common; west- and south-facing arrays perform best. Export rates are materially lower than retail, so sizing to daytime load (or adding a battery) usually beats oversizing for export.

Example local businesses with published addresses; not ranked by Photonik or by star ratings.

PEP Solar — 2025 W Deer Valley Rd, Suite 104, Phoenix, AZ 85027