Loading NuWatt Energy...
We use your location to provide localized solar offers and incentives.
We serve MA, NH, CT, RI, ME, VT, NJ, PA, and TX
Loading NuWatt Energy...
McKinney 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 plan gives effective 1:1 net metering. With 2.01% Collin County tax rate and a mix of historic and new-build homes, McKinney is a strong solar market. No federal 25D tax credit.
2026 Alert: The federal residential solar tax credit (Section 25D) expired December 31, 2025. McKinney 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 McKinney homeowner actually pays in 2026. McKinney's mix of established neighborhoods like Stonebridge Ranch and newer developments like Craig Ranch means solar readiness varies by home age.
Oncor's solar+battery rebate is the best utility solar incentive in any deregulated Texas territory. Here is how it works for McKinney homeowners.
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 McKinney homeowners, battery backup provides peace of mind during ERCOT grid stress events — especially during Texas summer heat waves that push the grid to its limits.
Collin County is one of the highest hail-risk areas in DFW. Choosing impact-resistant panels is essential for protecting your McKinney solar investment.
| 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 |
McKinney has the best REP solar buyback options in Texas. TXU Energy's retail-match plan is exclusively available in 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. This is effectively 1:1 net metering — the gold standard that most states mandate but Texas does not. The TXU retail-match is only available in Oncor territory (DFW, Waco, Midland) — Houston and South Texas cannot access this plan.
The 100% Texas property tax exemption is the second-largest financial incentive for McKinney solar owners after the Oncor battery rebate.
File Form 50-123 with the Collin Central Appraisal District (CCAD) by April 30 following your solar installation. This is separate from your homestead exemption. At Collin County's 2.01% rate on a $22,500 system, this saves approximately $452 per year in the first decade. McKinney's ~210,000 residents benefit from a tax rate slightly lower than Dallas County, maximizing the value of the property tax exemption.
Estimate your McKinney-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 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.
The Oncor solar+battery rebate of up to $9,000 is not automatically included. If you plan to add battery storage, subtract the applicable rebate from the total system cost.
Propel Solar gives McKinney homeowners $0 down solar with a fixed payment and full ownership by year 5.
A third-party financing company owns your system and captures the 30% Section 48 commercial ITC — savings that homeowners cannot access since 25D expired.
If your McKinney electricity bill is $160/mo, your Propel payment is approximately $144/mo — saving roughly 10% from day one.
Full ownership transfers to you after approximately 5 years. Silfab 440W American-made panels with free maintenance during the financing period.
For McKinney homeowners who do not have $22,500 in cash, Propel Solar provides immediate savings with zero upfront risk. Combined with Collin County's property tax exemption, Propel delivers strong value.
Common questions about solar panel costs in McKinney.
Full guide to the Oncor rebate program — eligibility, amounts, and how to apply.
Read guideSolar costs in Dallas — same Oncor territory, Dallas County 2.17% rate.
Read guideComplete guide to REP buyback rates including TXU retail-match details.
Read guideComplete overview of going solar in Texas — incentives, timeline, and what to expect.
Read guideLast updated: March 8, 2026. Prices, rebate amounts, REP buyback rates, and utility programs may change.
NuWatt Energy partners with experienced DFW solar installers who know Oncor territory — from the battery rebate application to hail-resistant panel selection and TXU buyback optimization. Get a free assessment tailored to your McKinney home.