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Oncor / TXU Energy vs Duke Energy Florida

Oncor / TXU Energy has 4.7% cheaper electricity at 15.06¢/kWh vs 15.80¢/kWh for Duke Energy Florida. A typical customer saves about $6.66/month with the cheaper utility.

Oncor / TXU Energy

15.06¢

per kWh

3,600,000 customers

Texas

Duke Energy Florida

15.80¢

per kWh

1,900,000 customers

Florida

Detailed Comparison

MetricOncor / TXU EnergyDuke Energy FloridaNational Avg
Avg Rate15.06¢/kWh15.80¢/kWh17.22¢/kWh
Est. Monthly Bill (900 kWh)$135.54$142.20$154.98
Est. Annual Bill$1,626.48$1,706.40$1,859.76
Customers Served3,600,0001,900,000
Service StateTexasFlorida
Service TypeElectricElectric

Bottom Line: Oncor / TXU Energy vs Duke Energy Florida

Oncor / TXU Energy offers the lower electricity rate at 15.06¢/kWh — 4.7% cheaper than Duke Energy Florida's 15.80¢/kWh. On a typical 900 kWh/month household, that's a savings of $6.66/month or $79.92/year.

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Data verified March 2026 · Source: U.S. Energy Information Administration (EIA)