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Back to All ProvidersRates last checked: October 22, 2026
Constellation
vs
Pronto Power

Constellation vs Pronto Power : Texas Electricity Head-to-Head

Constellation offers 13 plans starting at 11.8c/kWh while Pronto Power has 14 plans from 15.9c/kWh across all 6 Texas TDU service areas. Here is how their rates, terms, renewable options, and fees compare.

Constellation
Pronto Power
13
Total Plans
14
11.8c
Lowest Rate
at 1,000 kWh
15.9c
13.9c
Average Rate
at 1,000 kWh
17.9c
4.5c
Rate Spread
max minus min
4.3c
12-14 mo
Term Range
1-10 mo
0 (0%)
100% Renewable
plan count
0 (0%)
0
Solar Buyback Plans
0
0
Time-of-Use Plans
0
0
Prepaid Plans
14
$150 flat
Cancellation Fee
None
6 of 6
Service Areas
of 6 TDUs
5 of 6

Rate Curve Comparison

Constellation Pronto Power Best available rate at each usage level
10c12c14c16c18c500 kWh1,000 kWh2,000 kWhMonthly Usage13.1c11.8c12.6c17.6c15.9c15.1c
Rate Curve Winner: Constellation

Lowest average rate across all usage levels (12.5c/kWh vs 16.2c/kWh). Consistent pricing regardless of how much electricity you use.

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

TermConstellation Best PlanRateFeePronto Power Best PlanRateFeeWinner
6 MonthN/AN/AN/APower To ChooseEFL15.9cNonePronto Power
12 Month12 Month Usage Bill Credit EFL11.9c$150 flatPower To ChooseEFL16.4cNoneConstellation
24 Month14 Month Usage Bill CreditEFL11.8c$150 flatN/AN/AN/AConstellation

Plan Type Breakdown

Constellation

Fixed Rate13 plans (11.8c - 16.3c)
Variable Rate0 plans
Time-of-Use0 plans
Prepaid0 plans
100% Renewable0 plans

Pronto Power

Fixed Rate0 plans
Variable Rate14 plans
Time-of-Use0 plans
Prepaid14 plans
100% Renewable0 plans

Cancellation Fee Comparison

Constellation

Flat Fee Plans13 plans
Per-Month-Remaining Plans0 plans
Average Fee$150
No-Fee Plans0 plans (0%)
Fee Range$150 flat

Pronto Power

Flat Fee Plans0 plans
Per-Month-Remaining Plans0 plans
Average FeeN/A
No-Fee Plans14 plans (100%)
Fee RangeNone

Renewable Energy Deep Dive

Constellation

100% Renewable Plans0 plans (0%)
Partial / Non-Renewable13 plans
Avg Renewable RateN/A
Avg Overall Rate13.9c
Green PremiumN/A

Pronto Power

100% Renewable Plans0 plans (0%)
Partial / Non-Renewable14 plans
Avg Renewable RateN/A
Avg Overall Rate17.9c
Green PremiumN/A

Full Plan Tables

or

Constellation (0 plans)

No plans available in this service area.

Pronto Power (0 plans)

No plans available in this service area.

Which Provider Fits You Better?

Looking for the Lowest Rate?

Better fit: Constellation

Constellation has the lower advertised rate at 11.8c/kWh (1,000 kWh usage), compared to 15.9c/kWh.

Need Flexibility?

Better fit: Pronto Power

Pronto Power 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 Constellation cheaper than Pronto Power ?

Based on current plan data, Constellation has the lower advertised rate, offering plans starting at 11.8c/kWh compared to 15.9c/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 Constellation offer renewable energy plans compared to Pronto Power ?

Neither Constellation nor Pronto Power currently lists any 100% renewable plans in our tracked Texas service areas, though many standard plans include some percentage of renewable content.

What are the cancellation fees for Constellation vs Pronto Power ?

Constellation charges $150 flat on its tracked plans, while Pronto Power has no cancellation fee 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, Constellation or Pronto Power ?

Pronto Power currently offers more plan options across the Texas TDU areas we track, with 14 plans compared to 13.

Can I switch from Constellation to Pronto Power ?

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.