Carrollton is one of DFW's original planned suburbs — a mid-size city that grew rapidly in the 1970s and 1980s and has since become an established, diverse community with one of the most economically varied housing stocks in the metroplex. For solar, that vintage is nearly ideal: most Carrollton homes were built when roofs were large and oriented for the natural light, they have had enough time to warrant roofing and systems upgrades, and their occupants face the same high Texas electricity bills as every other DFW city. Here is the 2026 solar picture for Carrollton.
Solar Costs in Carrollton TX in 2026
Carrollton homes tend toward the moderate size range — 1,400–2,600 sq ft is the most common bracket — which means most solar systems fall in the 5–9 kW range. This puts total installed costs in the middle of the DFW range and generally produces payback periods in the 7–9 year range.
| System Size | Installed Cost (Before Incentives) | Est. Annual Savings |
|---|---|---|
| 5–6 kW | $16,000 – $21,000 | $1,100 – $1,600 |
| 7–8 kW | $22,000 – $27,000 | $1,500 – $2,200 |
| 9–10 kW | $28,000 – $33,000 | $2,000 – $2,800 |
Dallas County vs. Denton County: Which Part of Carrollton Are You In?
Carrollton spans two counties. Most of the city is in Dallas County; a portion of northwestern Carrollton falls in Denton County. The practical difference for solar homeowners is the appraisal district that handles your property tax exemption filing:
- ✓Dallas County portion: Form 50-123 filed with the Dallas Central Appraisal District (DCAD). Combined tax rate approximately 2.2–2.5%.
- ✓Denton County portion: Form 50-123 filed with the Denton Central Appraisal District (DCAD). Combined rate approximately 2.0–2.3%.
- ✓Not sure which county you are in? Your county is listed on your property tax statement, or we confirm it during the free site visit.
Either way, the exemption applies under Texas Tax Code §11.27. On a $23,000 system at a 2.3% combined rate, that is $529 per year in avoided property taxes — over $13,000 across the system life.
Carrollton's 1970s–90s Homes: What to Check Before Solar
Carrollton's dominant housing vintage comes with a short checklist before solar installation:
- ✓Roof condition: Homes built in the 1970s–80s with original or once-replaced roofs may be approaching end of life. We assess roof condition during every free site visit. If your roof has fewer than 7–8 years left, a simultaneous roof replacement saves $2,000–$4,000 versus two separate projects.
- ✓Electrical panel: 1970s–80s homes frequently have 100-amp electrical service. Modern solar requires a 200-amp panel to support the added load. If your home needs an upgrade, we build that into the project estimate — typically $900–$1,500 for the panel work.
- ✓Attic ventilation and insulation: Older Carrollton homes often have dated insulation. Better insulation reduces electricity consumption, meaning a smaller (less expensive) solar system achieves the same bill offset. Worth evaluating before finalizing system size.
- ✓Tree shade: Carrollton's older neighborhoods have mature tree cover. We use shading tools to quantify shadow impact and site panels on your best-producing roof sections.
Oncor Service in Carrollton
All of Carrollton is served by Oncor Electric Delivery. You have access to the full ERCOT retail market, the Oncor Solar+Storage rebate for battery installations, and competitive solar buyback plans. Carrollton's proximity to the Lewisville Lake transmission corridor means Oncor infrastructure is well-developed in the area.
HOAs in Carrollton
Carrollton has a mix of HOA and non-HOA neighborhoods — it is not as uniformly HOA-covered as newer suburbs like Frisco or Allen. Older sections of the city (pre-1985) are often non-HOA or have inactive associations. Newer planned sections near the 121 and 35E corridors have more active HOAs. If your neighborhood has an HOA, Texas Property Code §202.010 protects your right to install. We handle ARC applications wherever required.
Solar Permitting in Carrollton
The City of Carrollton Building Inspections handles residential solar permits. Carrollton's permit office is efficient for well-documented submissions — typical turnaround is 5–10 business days. We handle all permit paperwork and inspector scheduling as part of every installation.
Get a free solar assessment for your Carrollton home — roof condition check, panel sizing, and full incentive breakdown included at no cost.
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