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Is Solar Worth It in Flower Mound, Texas?

We analyzed Oncor (transmission) rate books, NREL irradiance data, and Texas tax codes to calculate the real ROI for homeowners in 75028.

Market Snapshot

Elec. Rate
$0.133/kWh
Sun Hours
5.45
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 Flower Mound is $133.0.

With intense Texas summers and concerns over ERCOT's grid stability, many homeowners in Flower Mound are exploring solar energy. A typical rooftop solar system not only cuts your monthly electricity bill but, when paired with a battery, provides crucial backup power during outages. For residents in the Oncor service area, this means taking control of your power supply.

Compare bill offset and incentives—open the calculator next.

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Benchmark Cost Analysis

How Much Does Solar Cost in Flower Mound in 2026?

The total cost depends heavily on whether you add a battery for backup power—a popular choice given Texas grid uncertainty. Here’s a breakdown for a typical 4 kW system:

  • Solar Panels Only: A standard system has a gross cost around $11,500. After the 30% federal tax credit, the net cost drops to approximately $8,050. This is the most affordable route to lower electricity bills.
  • Solar + Battery System: For true energy independence, adding a battery brings the gross cost to about $23,500. The federal tax credit applies to the battery as well, reducing your final cost to around $16,450. This setup protects you from blackouts and gives you total control over your home's power.

Incentives & Tax Credits

Flower Mound Solar Incentives & Tax Credits

Texas offers strong financial incentives that make going solar much more affordable. In 2026, homeowners can take advantage of:

  • 30% Federal Solar Tax Credit: This is the most significant incentive, allowing you to deduct 30% of the total system cost (panels and battery) from your federal taxes.
  • Texas Property Tax Exemption: Your property taxes will not increase due to the added value of your solar panel system.
  • No State Sales Tax: All solar energy equipment is exempt from the 6.25% Texas sales tax, saving you hundreds of dollars upfront.

Net Metering: Oncor (transmission)

Policy Status

No Statewide NEM

Battery Priority

Optional

Understanding Solar Buyback Plans in a Deregulated Market

Flower Mound is in a deregulated electricity market. Oncor manages the power lines, but you choose your Retail Electric Provider (REP). There is no statewide net metering law, so your solar buyback plan depends entirely on your REP. Many REPs like TXU Energy and Green Mountain Energy offer specific 'solar buyback' plans that credit you for the excess energy you send to the grid. It's critical to shop for a plan that maximizes the value of your solar production.

Projected Savings

What Are the Real Monthly Savings?

Installing a 4 kW solar system in Flower Mound can generate over 6,000 kWh of clean energy annually. With an average electricity rate of $0.133/kWh, this translates into annual savings of around $805. Over the 25-year lifespan of the panels, that's over $20,000 in saved electricity costs, insulating you from the volatile energy prices common in the Dallas-Fort Worth area.

Local Questions Answered

Do I really need a battery in Flower Mound?
While a solar-only system saves money, it does not provide backup power during a grid outage. Given ERCOT's history of instability, most Texas homeowners now consider a battery essential for keeping the lights on, running the AC, and powering medical devices during blackouts.
How long does a solar system last?
Solar panels are incredibly durable and typically come with a 25-year performance warranty. They are built to withstand Texas-sized hail and high winds. The battery components usually have a 10-15 year warranty.
Will solar panels increase my home's value?
Yes, studies have shown that homes with solar panel systems sell for more than homes without them. Plus, thanks to the Texas property tax exemption, you get the increased home value without the higher tax bill.

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* Calculations based on Oncor (transmission) residential rates (0.133/kWh).

Data Transparency & Methodology

Estimates for Flower Mound, 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.