Oncor (TDU) Service Area
Solar + Battery Storage in Collin County, TX
Get connected with licensed local solar installers across 3 cities in Collin County. Make your own power, store it in battery backup, and stay powered through grid outages and summer heat events. VoltSol matches you with vetted local installers who handle the rest.
County Snapshot — Collin County
Utility Rate
Oncor (TDU): Estimated $0.14/kWh residential rate. Collin County is in the deregulated ERCOT market. Oncor delivers power as the wires-only TDU, but you choose your own Retail Electric Provider (REP) which sets your solar buyback rate. Solar export rates vary widely by REP and plan -- shop for competitive solar buyback to maximize savings. Illustrative residential rate range: $0.12-$0.16/kWh depending on REP choice.
Permit Office
City of Plano Building Inspection (City of Plano (other cities have separate processes)). Typical turnaround: 2-6 weeks, varies by jurisdiction. Plano, Frisco, McKinney, and other cities in Collin County each have their own building departments. Permit timelines vary -- confirm with your local jurisdiction. Your installer manages the application.
Climate Zone
Hot-humid North Texas / Hail Alley: Hot, humid summers with high cooling demand. Collin County is in "Hail Alley" -- severe spring/summer hailstorms require hail-rated solar equipment. Winter storms and summer heat events make battery backup valuable for grid resilience.
County Context
Collin County is the northern Dallas metro area, centered on Plano, Frisco, and McKinney. The hot, humid climate drives high summer cooling loads. Located in "Hail Alley," hail-rated solar equipment is essential. Winter Storm Uri and summer heat events underscore the importance of battery backup.
Tax credit, exemption, and incentive information is general and subject to change. Consult a licensed tax professional and your county appraisal district (or equivalent local authority) for guidance specific to your situation.
Why Solar + Battery Storage in Collin County?
Homeowners in Collin County are served by Oncor (TDU), which has seen significant residential rate increases in recent years. Residential solar + battery storage offers a way to lock in energy costs at installation prices and protect against future rate hikes.
A solar + battery system combines rooftop panels, battery storage, and inverters to power your home's biggest loads — heating, cooling, and major appliances — while maximizing the power you make and use yourself, plus backup power during grid outages. A licensed local installer sizes and installs the system.
Most of Texas is a deregulated ERCOT market, so solar export (buyback) rates depend on the Retail Electric Provider and plan you choose — they can vary widely. In Collin County, the reliable value is in storing and using your own power rather than depending on a favorable buyback rate. Ask your local installer about current interconnection and buyback options for your utility.