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TXU Energy vs Frontier Utilities

Here's how they stack up on what matters: startup cost, same-day service, and trust.

Updated 2026-01-29

Side-by-Side Comparison

TXU Energy logo

TXU Energy

High Trust
Startup Cost $75–$150
Credit Check Maybe
No Deposit On prepaid plans
Same-Day Lights Yes (by 6:00 PM CT)
Plan Type Prepaid + Traditional
In Texas Since 1984
PUCT License #10004
Frontier Utilities logo

Frontier Utilities

Medium Trust
Startup Cost $40–$100
Credit Check Maybe
No Deposit On prepaid plans
Same-Day Lights Yes (by 6:00 PM CT)
Plan Type Prepaid + Traditional
In Texas Since 2008
PUCT License #10196

Our Take

TXU Energy has the stronger track record and trust signals, but Frontier Utilities costs less to start. If trust matters more than saving $35 upfront, pick TXU Energy. If you need the cheapest way in, Frontier Utilities works.

TXU Energy logo

When to Pick TXU Energy

  • Stronger trust record (Texas legacy brand since deregulation, J.D. Power awards, NRG company)
  • Total Satisfaction Guarantee (60 days)
Full TXU Energy review
Frontier Utilities logo

When to Pick Frontier Utilities

  • Lower startup cost ($40 vs $75)
  • Bilingual customer support
  • 60-Day Happiness Guarantee (60 days)
Full Frontier Utilities review

Common Questions

Is TXU Energy cheaper than Frontier Utilities?

TXU Energy starts at $75–$150 and Frontier Utilities starts at $40–$100. The startup cost gets your lights on. Actual monthly costs depend on your usage and the rate you get for your ZIP code. Enter your ZIP below to see real rates for both.

Which is better if I have bad credit — TXU Energy or Frontier Utilities?

TXU Energy may check credit on traditional plans, but their prepaid plans skip it. Frontier Utilities may check credit on traditional plans, but their prepaid plans skip it. Either way, pay-as-you-go plans from both companies work regardless of your credit.

Can I switch from TXU Energy to Frontier Utilities?

Yes. With pay-as-you-go plans, there's no contract locking you in. Sign up with the new company and they handle the switch. Usually takes 1–3 business days. Just make sure there's no switch hold on your meter — that can block any switch regardless of provider.

See Which One Serves Your Area

Enter your ZIP to compare TXU Energy and Frontier Utilities plans and rates. No deposit. No credit check.

Texas ZIP codes only. We'll show you no-deposit plans in your area.

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