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Allen solar costs $2.05–$2.45/W in Oncor territory. A 10 kW system runs ~$22,500 gross. Oncor offers up to $9,000 in solar+battery rebates. TXU Energy's retail-match gives you 1:1 net metering. With 2.04% Collin County tax rate and mostly single-family homes, Allen is an ideal DFW solar market. No federal 25D tax credit.
2026 Alert: The federal residential solar tax credit (Section 25D) expired December 31, 2025. Allen 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 an Allen homeowner actually pays in 2026. Allen's ~110,000 residents live primarily in single-family homes with good solar potential — newer subdivisions in Twin Creeks and Watters Creek are especially well-suited.
Oncor's solar+battery rebate is the best utility solar incentive in deregulated Texas. Here is how Allen homeowners can qualify.
A typical battery (Tesla Powerwall 3, 13.5 kWh) costs $12,000-$13,000 installed. With the $9,000 Oncor rebate, your net battery cost drops to approximately $3,500. For Allen homeowners, battery backup provides critical protection during ERCOT grid stress events and summer power outages. If backup power matters to your family, the Oncor rebate makes the battery cost very reasonable.
Allen sits in DFW Hail Alley. Impact-resistant panels protect your solar investment from North Texas storms.
| 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 |
Allen has access to the best solar buyback plans in Texas via Oncor territory.
| 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. This is only available in Oncor territory (DFW, Waco, Midland). Houston and South Texas cannot access this plan.
The 100% Texas property tax exemption is a major financial incentive for Allen solar owners.
File Form 50-123 with the Collin Central Appraisal District (CCAD) by April 30 following your solar installation. At 2.04% on a $22,500 system, this saves approximately $459 per year in the first decade. Allen's ~110,000 residents enjoy a competitive Collin County tax rate that maximizes the value of the exemption.
Estimate your Allen-area solar costs, production, and savings.
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. Section 25D expired December 31, 2025. Propel Solar uses a third-party owner to claim the 30% commercial ITC.
The Oncor solar+battery rebate of up to $9,000 is not automatically included. Subtract the rebate from total cost if adding battery storage.
Propel Solar gives Allen homeowners $0 down solar with a fixed payment and full ownership by year 5.
A third-party financing company captures the 30% Section 48 commercial ITC — savings unavailable to homeowners since 25D expired.
If your Allen electricity bill is $160/mo, your Propel payment is approximately $144/mo — saving roughly 10% from day one.
Full ownership transfers after ~5 years. Silfab 440W American-made panels with free maintenance during financing.
For Allen homeowners who do not have $22,500 in cash, Propel Solar provides immediate savings with zero upfront risk.
Common questions about solar panel costs in Allen, TX.
Full guide to the Oncor rebate program.
Read guideSolar costs in neighboring Plano — Collin County 1.86% rate.
Read guideComplete guide to REP buyback rates.
Read guideComplete overview of going solar in Texas.
Read guideLast updated: March 8, 2026.
NuWatt Energy partners with experienced DFW solar installers who know Oncor territory. Get a free assessment tailored to your Allen home.