Allen is a tightly built Collin County suburb tucked between Plano and McKinney, with a median household income well above the DFW average and a housing stock dominated by well-built two-stories from the 2000s and 2010s. It consistently ranks among the best-educated and highest-income cities in North Texas — which means Allen homeowners tend to analyze solar carefully before committing, and the numbers hold up well under scrutiny.
What Solar Costs in Allen TX in 2026
Allen solar installation costs run $20,000–$36,000 before incentives for a typical 7–12 kW system. Allen homes are on the larger side for a mid-tier suburb — many neighborhoods feature 2,400–3,600 sq ft homes with generous roof planes and strong south-facing exposure. This combination of size and good orientation makes Allen rooftops highly suitable for solar.
| System Size | Installed Cost (Before Incentives) | Est. Annual Savings | Home Fit |
|---|---|---|---|
| 6–7 kW | $19,000 – $23,000 | $1,300 – $1,800 | Smaller Allen homes, 1,600–2,200 sq ft |
| 8–9 kW | $24,000 – $29,000 | $1,800 – $2,400 | Typical two-story, 2,200–2,900 sq ft |
| 10–12 kW | $30,000 – $37,000 | $2,400 – $3,200 | Larger homes, 3,000–4,000 sq ft |
Collin County Property Tax Exemption in Allen
Allen sits entirely in Collin County. The combined property tax rate — Collin County, City of Allen, and Allen ISD — runs approximately 2.0–2.3%. Under Texas Tax Code §11.27, the full appraised value of your solar system is permanently exempt from that rate. Allen home values are high, which means the dollar savings from the exemption are proportionally larger than in lower-value markets.
| System Value | Allen Rate (2.2%) | Annual Tax Savings | 25-Year Total |
|---|---|---|---|
| $22,000 | 2.2% | $484/year | $12,100 |
| $28,000 | 2.2% | $616/year | $15,400 |
| $35,000 | 2.2% | $770/year | $19,250 |
Zencore Solar files Form 50-123 with the Collin Central Appraisal District (CCAD) on every Allen installation within 30 days of activation.
HOAs in Allen: What Solar Buyers Need to Know
Allen is densely HOA-covered, particularly in the planned communities that make up the bulk of its residential base. Texas Property Code §202.010 protects your right to install solar regardless of your HOA's rules — no HOA in Texas can legally prohibit solar. They can regulate placement and aesthetics, which in practice means requesting rear or non-street-facing panel placement and ARC pre-approval.
We prepare and submit complete ARC packages for every Allen installation in HOA communities — roof plans, panel specifications, renderings, and installer credentials. ARC review in Allen HOAs typically takes 20–35 days. We schedule installation after written approval is in hand.
Oncor Service and Buyback Plans in Allen
All of Allen is served by Oncor Electric Delivery. As an Oncor customer, you have access to the Oncor Solar+Storage rebate (up to $9,000 for qualifying battery installations) and to the competitive retail electric market where providers like Rhythm Energy, TXU, Green Mountain, and Reliant offer solar buyback plans that credit exported power at meaningful rates.
Solar Permitting in Allen
The City of Allen Development Services handles solar permits. Allen has a streamlined residential solar permit process — complete applications are typically approved within 5–10 business days. We handle all permit submissions, fees, and inspector coordination as part of every installation.
Get a free solar assessment for your Allen home — system design, tax savings calculation, and HOA documentation support included.
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