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Is Solar Worth It in Keller, Texas?

We analyzed Oncor (transmission) rate books, NREL irradiance data, and Texas tax codes to calculate the real ROI for homeowners in 76248.

Market Snapshot

Elec. Rate
$0.14/kWh
Sun Hours
5.61
Utility Oncor (transmission)
Tax Exempt Yes
Battery Optional

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 Keller is $140.0.

Is going solar in Keller a smart financial move for 2026? With excellent sun exposure and rising electricity rates, the answer for most homeowners is a clear yes. You can lock in lower energy costs for decades and gain crucial independence from the unreliable Texas grid.

Want the payoff timeline? Jump straight to the interactive calculator.

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Benchmark Cost Analysis

Investment for Solar Power in Keller, TX

Achieving energy independence requires an upfront investment, but federal incentives significantly reduce the cost. There are two primary paths homeowners are taking in 2026:

  • Solar Only System: The most affordable option, a 4 kW system, costs around $11,500 before incentives. After the 30% federal tax credit, your net cost is only $8,050, offering a quick payback period of just over 9 years.
  • Solar + Battery System: For complete peace of mind, adding a 10 kWh battery brings the total cost to around $23,500. After the 30% federal credit, the net cost is $16,450. This system protects you from ERCOT outages and ensures you're using your own clean energy day and night.

Incentives & Tax Credits

Unlock Savings with Tax Credits and Exemptions

The primary financial incentive is the 30% Residential Clean Energy Credit, which reduces your federal tax liability dollar-for-dollar. A $16,450 net system cost is only possible because of this $7,050 credit on the original price. Furthermore, Texas law exempts solar installations from sales tax and, more importantly, from property tax assessments. This means your home's value increases without your tax bill going up.

Net Metering: Oncor (transmission)

Policy Status

No Statewide NEM

Battery Priority

Optional

Solar Buyback Plans with Oncor-Serviced Homes

While Oncor maintains the power lines in Keller, your electricity plan comes from a Retail Electric Provider (REP). Texas's deregulated market means there's no standard net metering. Instead, you'll need a 'solar buyback plan' from an REP. Some plans offer great credits for your excess energy, while others offer very little. A solar installer can help you navigate these options. However, the best strategy is to install a battery to store and use your excess power yourself, making you less dependent on variable buyback rates.

Projected Savings

How Much Can You Save on Electricity in Keller?

A typical home in the Keller area with a $140 monthly electric bill can expect to save approximately $872 per year with a 4 kW solar installation. This is driven by Keller's strong solar irradiance of 5.61 kWh/m²/day, allowing your panels to work efficiently year-round. Pairing your system with a battery ensures you use your own solar power during expensive peak hours and during grid failures, further boosting your savings and energy security.

Local Questions Answered

Will my solar panels survive the hail storms common in the DFW area?
Yes, high-quality solar panels are manufactured to be extremely durable. They undergo testing with 1-inch diameter hail fired at over 50 mph. While no roof is completely immune to severe weather, panels are designed to withstand typical North Texas storms.
How does my relationship with Oncor change when I get solar?
Oncor will remain your transmission and distribution utility. They are responsible for maintaining the grid infrastructure and restoring power during outages. Your bill and solar buyback plan, however, will be managed by the Retail Electric Provider (REP) you choose, such as Reliant, TXU, or others.
I'm interested, but where do I start?
The best first step is to get a personalized savings estimate. By using a solar calculator, you can input your address and average utility bill to see exactly what size system you'd need, your expected costs, and your long-term savings.

Calculate Your Solar Savings

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* Calculations based on Oncor (transmission) residential rates (0.14/kWh).

Data Transparency & Methodology

Estimates for Keller, Texas 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.