Oncor / TXU Energy vs Duke Energy Carolinas
Duke Energy Carolinas has 6.4% cheaper electricity at 14.09¢/kWh vs 15.06¢/kWh for Oncor / TXU Energy. A typical customer saves about $8.73/month with the cheaper utility.
Detailed Comparison
| Metric | Oncor / TXU Energy | Duke Energy Carolinas | National Avg |
|---|---|---|---|
| Avg Rate | 15.06¢/kWh | 14.09¢/kWh | 17.22¢/kWh |
| Est. Monthly Bill (900 kWh) | $135.54 | $126.81 | $154.98 |
| Est. Annual Bill | $1,626.48 | $1,521.72 | $1,859.76 |
| Customers Served | 3,600,000 | 2,600,000 | — |
| Service State | Texas | North Carolina | — |
| Service Type | Electric | Electric | — |
Bottom Line: Oncor / TXU Energy vs Duke Energy Carolinas
Duke Energy Carolinas offers the lower electricity rate at 14.09¢/kWh — 6.4% cheaper than Oncor / TXU Energy's 15.06¢/kWh. On a typical 900 kWh/month household, that's a savings of $8.73/month or $104.76/year.
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Data verified March 2026 · Source: U.S. Energy Information Administration (EIA)