☀️ Solar Estimate · Phoenix, AZ
Solar savings for a $150/month electric bill in Phoenix, Arizona
A 5.9 kW solar system could save you an estimated $1,800 per year and pay for itself in about 8.7 years. Here's the full breakdown.
5.9 kW
System size
$15,635
Gross install cost
$1,800
Annual savings
8.7 yrs
Payback period
$42,300
25-year offset
100%
Bill coverage
What this means for you
With a $150 monthly electric bill in Phoenix, you're using approximately 909 kWh per month (10,909 kWh/year) at the local rate of $0.165/kWh.
- A 5.9 kW system is estimated to produce 10,918 kWh/year — covering about 100% of your usage.
- At current local rates, that's an estimated $1,800/year in reduced utility costs.
- Over 25 years (with 0.5% annual panel degradation), the estimated total offset is $42,300.
- Phoenix gets approximately moderate electricity rates, making solar a strong financial case.
How this estimate is calculated
This is a planning estimate, not a contractor quote. The model converts your monthly bill into estimated kWh usage, sizes a solar system to offset that usage, then estimates cost and payback from local assumptions.
- Electricity rate used: $0.165/kWh for Phoenix, AZ.
- Solar production assumption: 5.9 kW system using local sun-hour assumptions and a 78% performance ratio.
- Install cost assumption: estimated from the configured cost per watt for this market.
- Federal residential tax credit: modeled as 0% for new post-2025 residential installs; verify your tax situation before relying on incentives.
- Not included: roof shading, exact utility tariff, battery economics, financing/dealer fees, interconnection rules, and installer-specific pricing.
Before you compare quotes
These numbers are a starting point. Before signing with any installer, verify:
- Roof condition — age, orientation, shading, and structural capacity
- Net metering — your utility's buyback policy for excess solar
- Local incentives — state rebates, SREC markets, property tax exemptions
- Financing — loan vs. lease vs. PPA, and the real cost of each
- Installer reputation — warranties, reviews, years in business
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Frequently asked questions
How much does solar cost in Phoenix, AZ?
For a $150/month electric bill in Phoenix, a 5.9 kW system is estimated at $15,635 before incentives. Actual cost depends on roof condition, panel brand, and installer. Get multiple quotes to compare.
How long does solar payback take in Phoenix?
With estimated annual savings of $1,800, the simple payback for a 5.9 kW system in Phoenix is approximately 8.7 years. Net metering rules and utility rate changes can shift this.
Can solar cover my entire electric bill in Phoenix?
A 5.9 kW system is estimated to produce 10,918 kWh/year, covering about 100% of your estimated 10,909 kWh/year consumption. Actual coverage depends on roof orientation, shading, and seasonal usage.
Is solar worth it for a $150 bill?
Over 25 years, a solar system in Phoenix could offset an estimated $42,300 in utility costs for a $150/month bill. Whether it's worth it depends on your roof age, how long you plan to stay, and available financing options.
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Estimate only. Incentives, net metering, utility rates, roof condition, financing and tax treatment must be verified before quoting.