The "Teaser Rate" Antidote
In the ERCOT electricity market, providers engineer plans to look cheap at exactly 1,000 kWh. At TexasPowerCost.com, we provide the math that reveals the truth.
How Our Engine Works
Our engine uses Linear Interpolation. Instead of just looking at the 500, 1,000, and 2,000 kWh marks, we calculate the mathematical "slope" between them.
Whether you use 750 kWh or 1,250 kWh, we find the true electricity cost in Texas for your exact usage.
What Makes Up Your "True Cost"?
A real electricity bill in Texas is composed of three main factors:
| Component | Explanation | Status |
|---|---|---|
| Energy Charge | What you pay the provider per kWh. | Shoppable |
| TDU Delivery Fees | Regulated fees from your utility (Oncor, CenterPoint, AEP Texas or TNMP). | Fixed |
| Base Charges | Flat monthly account fees. | Hidden Fee |
Ready to calculate your bill?
Use our interactive tool to find cheapest electricity plans for your actual usage.
Built From the Official EFL
Every price we show comes from the plan's Electricity Facts Label (EFL), which lists its average price at 500, 1,000 and 2,000 kWh. Reading those three points side by side is what exposes base charges, bill-credit cliffs and usage-based penalties that the headline rate hides.
How This Calculator Works
The True Cost Calculator uses linear interpolation across the three EFL price points (500, 1000, 2000 kWh) to estimate your real per-kWh rate at any usage level. The result is the energy-supply cost you would actually pay at your specific usage, not the headline advertised rate. Your TDU's regulated delivery charge is reported separately: it is identical for every provider in your ZIP, so it changes your bill but never which plan is cheapest.
- How to Compare Texas Electricity Plans by Usage — the seven-step method, with the interpolation worked by hand
- What's the Best Site to Compare Texas Electricity Rates? — the seven criteria for judging any comparison tool
- Texas Electricity Plan Comparison Methodology — the full method documented step by step
- Every Type of Texas Electricity Plan, Explained — why bill-credit and free-nights plans skew the math
- How Much Electricity Does the Average Texas Home Use? — pick the right usage level to test
- Texas TDU Delivery Charges, Fully Explained — the layer added on top of every plan
- Why Is My Electricity Bill Higher Than the Advertised Rate? — what the headline ¢/kWh leaves out, with a real bill-credit cliff example
Source Credit: TexasPowerCost.com