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Flower Mound solar costs $2.05–$2.45/W in Oncor territory. With larger homes (3,000-5,000 sq ft), most homeowners need 12-15 kW systems at ~$27,000-$33,750. Oncor offers up to $9,000 in solar+battery rebates. TXU Energy's retail-match gives you effective 1:1 net metering. No federal 25D tax credit.
2026 Alert: The federal residential solar tax credit (Section 25D) expired December 31, 2025. Flower Mound homeowners who purchase solar with cash or a loan receive $0 in federal tax credits. All prices shown are full installed cost. Programs like Propel Solar use a third-party owner to access the commercial ITC with $0 down.
What a Flower Mound homeowner actually pays in 2026. With larger homes averaging 3,000-5,000 sq ft and electric bills of $200-$300/month, most homeowners need 12-15 kW systems.
Oncor's solar+battery rebate is the best utility solar incentive in any deregulated Texas territory. For Flower Mound's larger systems, the rebate covers a meaningful portion of the battery addition cost.
For Flower Mound's larger homes, a battery is particularly valuable. A Tesla Powerwall 3 (13.5 kWh) costs $12,000-$13,000 installed, and with the $9,000 Oncor rebate, your net battery cost drops to approximately $3,500. Flower Mound homes with 3,000-5,000 sq ft have more to lose during power outages — larger HVAC systems, more refrigerated food, home offices. The battery provides backup power during ERCOT grid events and summer demand peaks. For premium Flower Mound homes, battery backup is both practical and protects your investment.
With 12-15 kW systems costing $27,000-$34,000, Flower Mound homeowners have even more reason to invest in hail protection. The Highlands and Bridlewood neighborhoods have experienced significant hail damage in recent storm seasons.
| Panel | Hail Rating | Max Hail Size | Warranty |
|---|---|---|---|
| SunPower Maxeon 7 | IEC 61215 enhanced | 35mm (1.4 in) | 40 yr product + performance |
| REC Alpha Pure-RX | IEC 61215 enhanced | 35mm (1.4 in) | 25 yr product, 92% at yr 25 |
| Canadian Solar HiKu7 | Standard + enhanced testing | 25mm (1 in) standard | 25 yr product, 84.8% at yr 25 |
| Qcells Q.Peak DUO | IEC 61215 enhanced | 35mm (1.4 in) | 25 yr product, 86% at yr 25 |
Flower Mound has the same excellent Oncor-territory REP options as Dallas. TXU Energy's retail-match plan is especially valuable for larger Flower Mound systems that may export more energy during spring and fall.
| REP | Plan | Buyback Rate | Contract | Rollover |
|---|---|---|---|---|
| TXU EnergyTop Pick | Solar Buyback 24 | Retail-match | 24 mo | |
| TXU Energy | Solar Buyback 12 | Retail-match | 12 mo | |
| Green Mountain Energy | Solar Buyback 36 | 8.5¢/kWh fixed | 36 mo | |
| Chariot Energy | Solar Buyback 24 | 7.0¢/kWh fixed | 24 mo | |
| Constellation | Solar Buyback 12 | 6.5¢/kWh fixed | 12 mo | |
| Shell Energy | Solar Buyback 24 | 6.0¢/kWh fixed | 24 mo | |
| Rhythm Energy | Solar Buyback | Wholesale (variable) | Mo-to-mo |
TXU Energy's Solar Buyback plan credits exported solar at the exact same rate you pay for consumption — effectively 1:1 net metering. For Flower Mound's larger 12-15 kW systems, this is especially valuable. During spring and fall when AC usage drops, a larger system may export 40-50% of production. With TXU retail-match, all that excess energy earns full retail value instead of a fraction. The plan is only available in Oncor territory — Houston and South Texas cannot access it.
With Flower Mound's higher home values and a 2.08% property tax rate, the 100% Texas solar property tax exemption delivers significant savings — especially on larger systems.
File Form 50-123 with the Denton Central Appraisal District (DCAD) by April 30 following your solar installation. This is separate from your homestead exemption. The exemption prevents your property taxes from increasing due to the added value of your solar system. At Denton County's 2.08% rate on a $27,000 system, this saves approximately $562 per year in the first decade. Flower Mound homeowners with larger 15 kW systems ($33,750) save even more — approximately $702/year.
Estimate your Flower Mound solar costs, production, and savings. Adjust the system size for your home — most Flower Mound homes need 12-15 kW.
Estimate your solar cost, payback period, and 25-year savings for any major TX metro.
Federal Residential Solar Tax Credit (Section 25D) Expired
Homeowners who purchase solar with cash or a loan receive $0 in federal tax credits. Section 25D expired December 31, 2025.
CenterPoint delivery area. Deregulated — choose a solar buyback REP for best export value. High humidity reduces panel efficiency slightly. Strong solar irradiance despite cloud cover. Largest TX solar market by installed capacity.
Cost Range
$2.00–$2.40/W
Peak Sun Hours
5.3 hrs/day
Avg Electric Rate
$0.14/kWh
County Tax Rate
2.31%
Annual Production
15,476
kWh/year
Annual Savings
$1,800
per year
Payback Period
12.2
years
25-Year Savings
$65,627
total
Estimates based on average 2026 TX solar pricing, 5.3 peak sun hours/day, 0.5%/year panel degradation, 3%/year electricity rate increase, and TX property tax exemption (Tax Code §11.27). Actual costs vary by installer, roof condition, and system configuration. Section 25D residential ITC expired Dec 31, 2025 — $0 federal tax credit for cash/loan purchases.
The calculator reflects $0 federal tax credit for cash and loan purchases. Section 25D expired December 31, 2025. Programs like Propel Solar use a third-party owner to claim the 30% commercial ITC (Section 48/48E) for projects beginning construction before July 4, 2026.
The Oncor solar+battery rebate of up to $9,000 is not automatically included in the calculator. If you plan to add battery storage, subtract the applicable rebate from the total system cost for a more accurate net cost estimate.
With 12-15 kW systems costing $27,000-$34,000, Propel Solar is especially attractive for Flower Mound homeowners who want solar without the large upfront investment.
A third-party financing company owns your system and captures the 30% Section 48 commercial ITC — savings that homeowners cannot access since 25D expired. That tax benefit funds your $0 upfront cost.
If your Flower Mound electricity bill is $250/mo, your Propel payment is approximately $225/mo — saving roughly 10% from day one. The payment is fixed and predictable, unlike utility rates that increase 3-5% annually.
Full ownership transfers to you after approximately 5 years at no additional cost. Silfab 440W American-made panels with free maintenance during the financing period. You own the panels for the remaining 20+ years of their lifespan.
For Flower Mound homeowners who do not want to invest $27,000-$34,000 upfront, Propel Solar provides immediate savings with zero upfront risk. The third-party owner handles maintenance, monitoring, and warranty claims during the financing period. Combined with Denton County's property tax exemption, Propel delivers strong value for premium homes.
Common questions about solar panel costs in Flower Mound.
Solar pricing for Dallas proper — same Oncor territory, similar economics.
Read guideFull guide to the Oncor rebate program — eligibility, amounts, and how to apply.
Read guideComplete guide to REP buyback rates including TXU retail-match details.
Read guideCompare pricing across all Texas metros — Houston, Dallas, Austin, and more.
Read guideLast updated: March 8, 2026. Prices, rebate amounts, REP buyback rates, and utility programs may change. Contact NuWatt Energy or Oncor for current information.
NuWatt Energy partners with experienced DFW solar installers who specialize in larger home installations. From Oncor battery rebate applications to hail-resistant panel selection and TXU buyback optimization — get a free assessment tailored to your Flower Mound home.