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Is Solar Worth It in Duarte, California?

We analyzed LADWP / Southern California Edison rate books, NREL irradiance data, and California tax codes to calculate the real ROI for homeowners in 91010.

Market Snapshot

Elec. Rate
$0.27/kWh
Sun Hours
5.96
Utility LADWP / Southern California Edison
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 Duarte is $243.0.

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

Skyrocketing electric bills from Southern California Edison (SCE) are a constant worry for homeowners in the San Gabriel Valley. With their time-of-use rates, running your AC during a summer heatwave can cost a fortune. Many are looking to solar, but California's new rules have changed the game completely. It's crucial to understand how to make a solar investment pay off in 2026.

Benchmark Cost Analysis

System Cost for Duarte Homeowners in 2026

To truly combat SCE's rates, a solar and battery system is the new standard. While a solar-only system looks cheaper at around $11,500 before incentives, its savings are severely limited by low export credits. For real energy independence, here's the realistic breakdown:

  • Gross Cost (Solar + Battery): Approximately $23,500
  • After 30% Federal Tax Credit: A net cost of around $16,450
  • Estimated Payback Period: 9-10 years

This combined system allows you to store the abundant Duarte sunshine your panels generate during the day and use it during the expensive evening peak hours, maximizing your return.

Incentives & Tax Credits

Key Financial Incentives for Duarte Solar

The path to affordable solar is paved with powerful incentives. The most significant is the 30% Federal Solar Investment Tax Credit (ITC), which is available through 2032. For a $23,500 system, this credit slashes $7,050 directly off your federal tax liability. Additionally, California's Property Tax Exclusion prevents your property taxes from increasing due to the added value of your solar system.

Net Metering: LADWP / Southern California Edison

Policy Status

NEM 3.0 (2023)

Battery Priority

Critical 🔋

Understanding SCE's NEM 3.0 Policy

California's energy policy, known as Net Billing (NEM 3.0), is the single biggest reason a battery is now essential. Under the old rules, SCE paid you a fair rate for extra solar power you sent to the grid. Under NEM 3.0, they only pay about 5-8 cents per kWh — a nearly 75% reduction. Without a battery, your valuable solar energy gets sold for pennies. With a battery, you store that power yourself and avoid buying it back from SCE later for 30-40 cents/kWh.

Projected Savings

Slashing Your SCE Bill with Solar and Battery Storage

A typical 900 kWh/month household in Duarte faces an average bill of $243. A correctly sized solar and battery system effectively shields you from SCE's highest time-of-use rates. By using your own stored energy instead of buying expensive grid power in the evenings, you can expect to save around $1,669 per year, cutting your annual electricity spending by over 70%.

Local Questions Answered

Why is a battery necessary in Duarte now?
Because of SCE's NEM 3.0 tariff. It drastically reduces the credit you get for sending surplus power to the grid. A battery lets you store that surplus energy for your own use during expensive evening peak hours, which provides far greater savings.
How long does a solar and battery system take to pay for itself in Duarte?
With a net cost of around $16,450 and annual savings of $1,669, the typical payback period for a combined system in Duarte is approximately 9.9 years. After that, the energy produced is nearly free.
Can solar panels handle the intense summer heat here?
Absolutely. Modern solar panels are designed and tested to perform efficiently in high-heat environments like the San Gabriel Valley. Their output is warranted for 25 years.

Calculate Your Solar Savings

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* Calculations based on LADWP / Southern California Edison residential rates (0.27/kWh).

Data Transparency & Methodology

Estimates for Duarte, California 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.