Solar Panels in Richardson TX: 2026 Guide for Dallas County's Tech Corridor

Richardson has built its identity around the Telecom Corridor — the stretch of US-75 that hosts campuses for AT&T, Ericsson, Cisco, and Samsung, among others. That concentration of engineering and technical talent means Richardson homeowners tend to be analytically rigorous solar buyers who want specific data, not sales pitches. This guide provides that: real costs, real tax savings, and the specific considerations for Richardson's predominantly 1960s–1990s housing stock.

Solar Costs in Richardson TX in 2026

Richardson homes are smaller on average than the newer northern suburbs — many of the most common home types are 1,400–2,200 sq ft single-story ranches and two-stories from the 1970s through the 1990s. This translates to more modestly sized solar systems and lower upfront costs than Frisco or Southlake, while still producing meaningful savings.

Dallas County Property Tax Savings in Richardson

Most of Richardson is in Dallas County, with a small portion near the northern edge in Collin County. Dallas County combined property tax rates for Richardson homeowners run approximately 2.1–2.5%. Under Texas Tax Code §11.27, the full value of your solar system is permanently exempt. On a $20,000 system at a 2.3% rate, that is $460 per year — $11,500 over 25 years. We file Form 50-123 with DCAD (or CCAD for the Collin County portion) on every installation.

What Richardson's Older Homes Need Before Going Solar

The majority of Richardson's housing stock was built between 1960 and 1995. Before solar, a few things are worth evaluating:

• ✓Roof age and condition: Homes built in the 1970s–1980s with original or once-replaced roofs may be approaching the end of their composition shingle life. A roof assessment is part of every free Zencore Solar site visit. If your roof has fewer than 8–10 years left, we recommend coordinating a roof replacement with the solar project.
• ✓Electrical panel capacity: Homes with original 100-amp service panels may need a 200-amp upgrade before solar can be installed. This is a common finding in Richardson — cost is typically $900–$1,500 and we coordinate with licensed electricians.
• ✓Attic insulation: Not a solar requirement, but worth noting: Richardson homes from the 1970s–80s often have inadequate attic insulation. Improving insulation reduces your electricity usage, which can mean a smaller (cheaper) solar system is sufficient to achieve your savings goals.
• ✓Tree cover: Richardson has mature neighborhood trees that can shade roof sections. We quantify shade impact during the site visit and position panels on the best-producing sections of your roof.

UTD and Richardson's Energy-Aware Community

Richardson is home to the University of Texas at Dallas and a community with more engineering professionals per capita than most DFW suburbs. We find Richardson homeowners consistently ask better technical questions than average — about degradation rates, shade models, production estimates, and warranty specifics. We welcome that. Our proposals include full production modeling using actual irradiance data for your specific address, not generic calculators.

Oncor Service and Solar Buyback in Richardson

Richardson is fully in the Oncor Electric Delivery territory. As an Oncor customer you have access to the competitive retail electric market, the Oncor Solar+Storage battery rebate (up to $9,000), and solar buyback plans from multiple providers. The right buyback plan for a Richardson home depends on your usage profile — we review REP options during every consultation.

Solar Permitting in Richardson

The City of Richardson Building Inspection Division handles solar permits. Richardson's permit process is well-established and typically takes 5–12 business days for a complete application. We manage all permit submissions and inspector coordination. For homeowners in the small Collin County portion of Richardson, the applicable jurisdiction may vary — we confirm the correct permit authority during the site visit.