Home>Head to Head>Green Mountain Energy vs TXU Energy
Back to All ProvidersRates last checked: October 11, 2026
Green Mountain Energy
vs
TXU Energy

Green Mountain Energy vs TXU Energy: Texas Electricity Head-to-Head

Green Mountain Energy offers 31 plans starting at 13.9c/kWh while TXU Energy has 54 plans from 10.5c/kWh across all 6 Texas TDU service areas. Here is how their rates, terms, renewable options, and fees compare.

Green Mountain Energy
TXU Energy
31
Total Plans
54
13.9c
Lowest Rate
at 1,000 kWh
10.5c
16.8c
Average Rate
at 1,000 kWh
17.9c
10.3c
Rate Spread
max minus min
14.1c
9-36 mo
Term Range
1-12 mo
25 (81%)
100% Renewable
plan count
0 (0%)
6
Solar Buyback Plans
16
0
Time-of-Use Plans
4
0
Prepaid Plans
0
$95 - $395 (mixed fee types)
Cancellation Fee
$150 - $150 (mixed fee types)
6 of 6
Service Areas
of 6 TDUs
6 of 6

Rate Curve Comparison

Green Mountain Energy TXU EnergyBest available rate at each usage level
10c12c14c16c500 kWh1,000 kWh2,000 kWhMonthly Usage14.7c13.9c13.5c13.4c10.5c15.1c
Rate Curve Winner: TXU Energy

Lowest average rate across all usage levels (13.0c/kWh vs 14.0c/kWh). Consistent pricing regardless of how much electricity you use.

Below 2,000 kWh, TXU Energy tends to be cheaper. Above that, Green Mountain Energy has the edge.

Shows the best available all-in rate from each provider at 500, 1,000, and 2,000 kWh usage levels. The best plan may differ at each tier.

Best Plan Per Term Length

TermGreen Mountain Energy Best PlanRateFeeTXU Energy Best PlanRateFeeWinner
6 MonthN/AN/AN/AFlex ForwardEFL19.1cNoneTXU Energy
12 MonthPollution Free e-Plus 9 ChoiceEFL13.9c$95 flatSmart 1000 Select 12EFL10.5c$150 flatTXU Energy
24 MonthPollution Free e-Plus 24 ChoiceEFL14.2c$295 flatN/AN/AN/AGreen Mountain Energy
36 MonthPollution Free e-Plus 36 ChoiceEFL14.3c$395 flatN/AN/AN/AGreen Mountain Energy

Plan Type Breakdown

Green Mountain Energy

Fixed Rate28 plans (13.9c - 24.2c)
Variable Rate3 plans
Time-of-Use0 plans
Prepaid0 plans
100% Renewable25 plans (avg 15.7c)

TXU Energy

Fixed Rate54 plans (10.5c - 24.6c)
Variable Rate0 plans
Time-of-Use4 plans
Prepaid0 plans
100% Renewable0 plans

Cancellation Fee Comparison

Green Mountain Energy

Flat Fee Plans28 plans
Per-Month-Remaining Plans0 plans
Average Fee$225.36
No-Fee Plans3 plans (10%)
Fee Range$95 - $395 (mixed fee types)

TXU Energy

Flat Fee Plans46 plans
Per-Month-Remaining Plans0 plans
Average Fee$150
No-Fee Plans8 plans (15%)
Fee Range$150 - $150 (mixed fee types)

Renewable Energy Deep Dive

Green Mountain Energy

100% Renewable Plans25 plans (81%)
Partial / Non-Renewable6 plans
Avg Renewable Rate15.7c
Avg Overall Rate16.8c
Green Premium-1.2c

TXU Energy

100% Renewable Plans0 plans (0%)
Partial / Non-Renewable54 plans
Avg Renewable RateN/A
Avg Overall Rate17.9c
Green PremiumN/A

Full Plan Tables

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Which Provider Fits You Better?

Looking for the Lowest Rate?

Better fit: TXU Energy

TXU Energy has the lower advertised rate at 10.5c/kWh (1,000 kWh usage), compared to 13.9c/kWh.

Want a Long-Term Price Lock?

Better fit: Green Mountain Energy

Green Mountain Energy has the better option for locking in a rate on a 24-month or longer contract.

Going Green?

Better fit: Green Mountain Energy

Green Mountain Energy offers more 100% renewable plans (25 vs 0).

Need Flexibility?

Better fit: TXU Energy

TXU Energy has more flexible cancellation terms, including short-term or lower-commitment plans.

These rates are based on 1,000 kWh average usage. Your actual savings depend on YOUR usage pattern.

WattTrim analyzes your real Smart Meter data to find the plan that saves you the most - across all providers, not just these two.

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Frequently Asked Questions

Is Green Mountain Energy cheaper than TXU Energy?

Based on current plan data, TXU Energy has the lower advertised rate, offering plans starting at 10.5c/kWh compared to 13.9c/kWh from the other provider at 1,000 kWh of usage. Your actual cost depends on your usage pattern and the specific plan you choose.

Does Green Mountain Energy offer renewable energy plans compared to TXU Energy?

Green Mountain Energy offers 25 plans (81% of its lineup) at 100% renewable energy, while TXU Energy offers 0 plans (0% of its lineup).

What are the cancellation fees for Green Mountain Energy vs TXU Energy?

Green Mountain Energy charges $95 - $395 (mixed fee types) on its tracked plans, while TXU Energy charges $150 - $150 (mixed fee types) on its tracked plans. Always review the Electricity Facts Label (EFL) for the exact fee structure before enrolling.

Which provider has more plan options in Texas, Green Mountain Energy or TXU Energy?

TXU Energy currently offers more plan options across the Texas TDU areas we track, with 54 plans compared to 31.

Can I switch from Green Mountain Energy to TXU Energy?

Yes. Texas is a deregulated electricity market, so you can switch retail electric providers at any time. If you are still under contract with your current provider, check for an early termination fee before switching. New service with either provider typically starts within 1 to 5 business days of enrollment.