Home>Head to Head>Green Mountain Energy vs Octopus Energy
Back to All Providers
Green Mountain Energy
vs
Octopus Energy

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

Green Mountain Energy offers 22 plans starting at 14.8c/kWh while Octopus Energy has 37 plans from 8.7c/kWh across all 6 Texas TDU service areas. Here is how their rates, terms, renewable options, and fees compare.

Green Mountain Energy
Octopus Energy
22
Total Plans
37
14.8c
Lowest Rate
at 1,000 kWh
8.7c
16.5c
Average Rate
at 1,000 kWh
12.8c
3.5c
Rate Spread
max minus min
8.8c
12-36 mo
Term Range
3-24 mo
22 (100%)
100% Renewable
plan count
37 (100%)
0
Time-of-Use Plans
5
0
Prepaid Plans
0
$150 - $395
Cancellation Fee
$150 - $250
5 of 6
Service Areas
of 6 TDUs
5 of 6

Rate Curve Comparison

Green Mountain Energy Octopus EnergyBest available rate at each usage level
8c10c12c14c16c500 kWh1,000 kWh2,000 kWhMonthly Usage15.8c14.8c14.3c9.0c8.7c8.5c
Rate Curve Winner: Octopus Energy

Lowest average rate across all usage levels (8.7c/kWh vs 15.0c/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

TermGreen Mountain Energy Best PlanRateFeeOctopus Energy Best PlanRateFeeWinner
6 MonthN/AN/AN/AOcto Simple 3View PlanEFL8.7c$150 flatOctopus Energy
12 MonthPollution Free e-Plus 12 ChoiceView PlanEFL14.8c$150 flatOcto Simple 9View PlanEFL9.9c$150 flatOctopus Energy
24 MonthPollution Free e-Plus 18 ChoiceView PlanEFL14.8c$180 flatOcto Simple 24View PlanEFL12.4c$250 flatOctopus Energy
36 MonthPollution Free e-Plus 36 ChoiceView PlanEFL15.4c$395 flatN/AN/AN/AGreen Mountain Energy

Plan Type Breakdown

Green Mountain Energy

Fixed Rate20 plans (14.8c - 18.2c)
Variable Rate2 plans
Time-of-Use0 plans
Prepaid0 plans
100% Renewable22 plans (avg 16.5c)

Octopus Energy

Fixed Rate37 plans (8.7c - 17.5c)
Variable Rate0 plans
Time-of-Use5 plans
Prepaid0 plans
100% Renewable37 plans (avg 12.8c)

Cancellation Fee Comparison

Green Mountain Energy

Flat Fee Plans20 plans
Per-Month-Remaining Plans0 plans
Average Fee$255
No-Fee Plans2 plans (9%)
Fee Range$150 - $395

Octopus Energy

Flat Fee Plans37 plans
Per-Month-Remaining Plans0 plans
Average Fee$166.22
No-Fee Plans0 plans (0%)
Fee Range$150 - $250

Renewable Energy Deep Dive

Green Mountain Energy

100% Renewable Plans22 plans (100%)
Partial / Non-Renewable0 plans
Avg Renewable Rate16.5c
Avg Overall Rate16.5c
Green PremiumNone

Octopus Energy

100% Renewable Plans37 plans (100%)
Partial / Non-Renewable0 plans
Avg Renewable Rate12.8c
Avg Overall Rate12.8c
Green PremiumNone

Full Plan Tables

Which Provider Fits You Better?

Looking for the Lowest Rate?

Better fit: Octopus Energy

Octopus Energy has the lower advertised rate at 8.7c/kWh (1,000 kWh usage), compared to 14.8c/kWh.

Want a Long-Term Price Lock?

Better fit: Octopus Energy

Octopus Energy has the better option for locking in a rate on a 24-month contract.

Going Green?

Better fit: Octopus Energy

Octopus Energy offers more 100% renewable plans (37 vs 22).

Need Flexibility?

Better fit: Octopus Energy

Octopus 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.

Always Free

Trim My Bill

Frequently Asked Questions

Is Green Mountain Energy cheaper than Octopus Energy?

Based on current plan data, Octopus Energy has the lower advertised rate, offering plans starting at 8.7c/kWh compared to 14.8c/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 Octopus Energy?

Green Mountain Energy offers 22 plans (100% of its lineup) at 100% renewable energy, while Octopus Energy offers 37 plans (100% of its lineup).

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

Green Mountain Energy charges $150 - $395 on its tracked plans, while Octopus Energy charges $150 - $250 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 Octopus Energy?

Octopus Energy currently offers more plan options across the Texas TDU areas we track, with 37 plans compared to 22.

Can I switch from Green Mountain Energy to Octopus 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.