Dallas sits at 32 degrees north latitude with Central Texas sun angles and an abundance of clear days that produce strong solar output, particularly May through September. The city doesn’t have Austin’s summer intensity, but it doesn’t need it — Dallas homeowners running air conditioning for six or more months generate the sustained electricity consumption that makes solar returns compelling. The average Dallas household pays approximately 14 cents per kilowatt-hour and spends roughly $2,700 per year on electricity; solar offsets a significant portion of that at current installation prices.
EnergySage data from February 2026 puts the average installation cost in Dallas at $2.13/watt — slightly below the Texas statewide average of $2.19/watt. Average system sizes in Dallas run large (approximately 14.4 kW), reflecting the high annual consumption driven by summer cooling loads. A typical system before incentives runs around $30,800. The federal residential solar tax credit expired December 31, 2025, so cash and loan buyers receive no federal credit. After Oncor’s rebate (which requires battery storage — more on that below), the net economics are strong. EnergySage puts Dallas’s average payback period at 8.3 years, with 25-year net savings around $63,100 after system cost. Texas’s 100% property tax exemption on solar-added home value and sales tax exemption on equipment remain fully active.
One important dynamic: Dallas electricity bills are volatile. ERCOT, the Texas grid operator, experiences periodic stress during extreme summer heat events — the same events that can cause energy prices to spike dramatically in real-time wholesale markets. Homeowners who choose real-time wholesale buyback plans can earn unusually high export credits during these spikes. That upside comes with tradeoffs, covered in the REP selection section below.
Understanding the two-layer structure: In Dallas, electricity delivery and electricity supply are separate. Oncor Electric Delivery owns and maintains the grid infrastructure — poles, lines, transformers, and the bi-directional meter that measures both your consumption from the grid and your solar surplus exported to it. You cannot choose Oncor; it is assigned by your address. What you choose is your Retail Electric Provider, the company that sells you electricity and sets the rate at which it buys back your solar exports.
TDU delivery charges — the line item solar can’t touch: Every Dallas electric bill includes Oncor delivery charges regardless of how much solar you generate. These charges cover grid maintenance and are assessed on your consumption from the grid. Solar buyback credits from your REP offset energy supply charges, but they do not reduce TDU delivery fees. You will always have some Oncor delivery costs on your bill, even in months when your solar panels produce more than your home consumes.
Choosing a solar buyback REP: Texas does not mandate net metering, and no single buyback rate applies across the market. Each REP sets its own terms — the export rate, whether credits roll forward month-to-month, whether unused credits expire at year-end, and contract length (typically 12–24 months with early termination fees around $150–$295). Key options in the Oncor service area as of early 2026:
Chariot Energy’s GreenVolt plan pays a fixed rate of approximately 7 cents per kWh for exports, with credits rolling month-to-month indefinitely. Chariot’s Shine plan pays the real-time ERCOT Settlement Point Price — updated every 15 minutes. During summer heat events this can spike far above retail rates; during mild weather it may settle at 2–3 cents. Octopus Energy pays real-time wholesale with unlimited credit rollover and no year-end expiration, and operates a GridBoost virtual power plant program paying approximately $40/month to manage battery dispatch during peak grid stress. Shell Energy and Green Mountain Energy offer variations on fixed and wholesale plans.
How to evaluate buyback plans: The Electricity Facts Label for each plan discloses both the import rate (what you pay per kWh from the grid) and the export rate (what you receive for surplus solar). A high export rate paired with a high import rate is not necessarily better than a moderate export rate with a lower import rate. Compare the all-in math. The Public Utility Commission of Texas maintains powertochoose.org where you can compare plans from all licensed REPs in your zip code, including solar buyback options.
Oncor’s solar rebate — up to $9,000, but battery required: Oncor operates the Solar Photovoltaic Standard Offer Program, offering incentives up to $9,000 for qualifying residential solar installations. Battery storage is required — Oncor has required an energy storage component since 2022, and solar-only installations do not qualify. The rebate amount varies based on system size, roof azimuth, shading factors, and battery specifications; a 7.2 kW system might receive approximately $4,400, with larger systems qualifying for more. Systems must be 3–15 kW DC with roof orientation between 67.5° and 292.5°.
The rebate is paid to the participating installer, not directly to you, and passed through as a reduction in your installation cost. Payments are distributed over five annual installments — not a lump sum. The program typically runs January through November; the 2025 program funding was exhausted by mid-year. Apply early in 2026 if you want to capture this incentive before funds run out. Confirm with your installer that the 2026 program is open and funded before making battery-plus-storage a financial requirement.
Battery storage economics in Dallas: Beyond the Oncor rebate, batteries serve two additional financial functions. First, storing midday solar production for evening and overnight use shifts consumption to solar rather than grid power. Second, battery owners can participate in virtual power plant programs like Octopus GridBoost, earning approximately $40/month for allowing their REP to dispatch battery capacity during peak grid stress events — additional revenue stacking on top of export credits.
Texas statewide protections: The 100% property tax exemption prevents your appraisal district from increasing your home’s assessed value after solar installation. The sales tax exemption applies to solar equipment purchases. Texas HB 431, passed in 2025, expanded the definition of protected solar devices to explicitly include solar roof tiles and shingles — HOAs can no longer argue that integrated roofing products like Tesla Solar Roof or GAF Timberline Solar fall outside solar installation protections.
Interconnection timeline: Oncor’s process from signed contract to Permission to Operate typically runs 8–14 weeks. Meter reprogramming to measure surplus generation takes about three weeks after interconnection approval, and the load profile update that allows your REP to receive surplus data takes one full billing cycle (30–60 days) after that. Expect 6–10 weeks after your system is producing before buyback credits appear on your bill.
