How does Green Mountain Energy score?
Green Mountain earns 68 out of 100. We rate that "fair." It gets full marks for its BBB grade and strong marks for price and contract terms. It loses the most points for complaints and a 2016 state penalty.
90–100 Excellent80–89 Very good70–79 Good60–69 FairUnder 60 Poor
Scores out of 100, from public records only, with the same formula for every company. Read our TXU review and Reliant review, or see all provider rankings.
See the evidence behind every point
| Category | Points | Evidence |
|---|---|---|
| Complaints to the state | 15 / 25 | 3 of 5 on the PUCT complaint scorecard (middle group), from Power to Choose provider data, 2026. For context, 83 complaints were logged April 1 to September 30, 2026. |
| BBB rating | 5 / 5 | A+ letter grade on the Texas retail-electricity profile. Only the letter grade counts; accreditation does not affect the score. |
| Fines and penalties | 8 / 20 | One qualifying penalty in 10 years, in the $500,000-or-more band: a $900,000 PUCT penalty in 2016 (Docket 46597) naming Green Mountain with Reliant and two affiliates. A shared penalty with no separate per-company amount counts in full against each named company (−12). No Texas Attorney General action found. |
| Contract fairness | 15 / 20 | $150 cancel fee on the 12-month plan (5 of 5); no arbitration clause and no class-action waiver (4 of 4); a plain fixed plan (4 of 4); two extra fees beyond late and returned payment (2 of 4); only the legal 3-day cancel window, no satisfaction guarantee (0 of 3). |
| Price | 17 / 20 | Pollution Free e-Plus 12 averages 15.1¢ at 1,000 kWh in Houston, 95% of EIA's 15.88¢ Texas average for July 2026. No 12-month fixed plan listed for Dallas (Oncor) on Power to Choose as of October 4, 2026; price scored on Houston only. |
| Time in business | 8 / 10 | Licensed August 2, 2001 (certificate 10009), more than 20 years (6); parent NRG Energy publishes audited financials (+2); no company-run bill-assistance fund confirmed (+0). |
Every company we review is scored with the same formula, using public records only. Full method: how we score.
Green Mountain Energy quick facts
How much would Green Mountain cost me each month?
Slide to the kWh on your last bill to see your real monthly cost in Houston. Watch the low end: under about 550 kWh a month, the $5 base charge makes this plan cost more than average. Above that, it costs less.
$5.00 base charge + $75.42 energy from Green Mountain + $70.23 CenterPoint delivery.
That's about $8.15 less than the same usage at the Texas average price of 15.88¢.
The math uses Green Mountain's September 30, 2026 fact label for Houston: a 7.5419¢ energy rate, a $5 monthly base charge, and CenterPoint's delivery charges. Taxes are extra. Not in Houston? See what Oncor charges in Dallas-Fort Worth, or price any plan with our plan cost calculator. Wondering how your usage stacks up? Compare it with a normal Texas bill.
What does Green Mountain charge in 2026?
Its main fixed plan, Pollution Free e-Plus 12, costs about 15.1¢ per kWh at 1,000 kWh in Houston. That's about $151 a month with delivery, before taxes. It's below the Texas average of 15.88¢.
Green Mountain: e-Plus 12 in Houston, fact label dated September 30, 2026. TXU: its simplest 12-month plan in Houston, from our TXU review. Texas average: EIA, July 2026, all utilities.
Average price per kWh from the plan's fact label for ZIP 77002, dated September 30, 2026. Prices include delivery but not taxes. Notice the price per kWh drops as you use more. That's the $5 base charge being spread over more kWh.
- Green Mountain energy charge (7.5419¢ per kWh)$75.42
- CenterPoint delivery, passed through to you$70.23
- Green Mountain base charge$5.00
Before taxes. Delivery is the same on every Houston plan, no matter which company you pick. See what CenterPoint charges.
Is Green Mountain Energy really 100% renewable?
Yes, through certificates. Green Mountain buys renewable energy certificates to match 100% of the power you use each year. Most Texas plans are far lower. The state average is 37%.
From the providers' fact labels. TXU's Texas Choice plan is 25% renewable.
Each certificate stands for one megawatt-hour of power made from a renewable source. Green Mountain buys enough of them to match all the power you use in a year. Its Pollution Free power is at least 51% Texas wind, and the rest is U.S. wind.
The power in your wires is the same grid mix your neighbors get. No company can send only wind power to one house. The certificates are how a plan claims the clean power it paid for.
Want to go further than a green plan? See whether solar panels are worth it in Texas, or what a home battery can do in an outage.
How many complaints does Green Mountain get?
Texans filed 83 complaints about Green Mountain with the state from April through September 2026. After adjusting for size, the state puts it in the middle group: 3 of 5.
The state sorts every provider into five equal groups by complaints per 1,000 customers. TXU is in the top group, 5 of 5.
Green Mountain sits in the middle. It beats the two worst groups but trails the two best. That's the biggest reason its score is "fair" and not "good."
The Better Business Bureau gives Green Mountain's Texas profile an A+, its top grade. Only the letter grade counts in our score. Reviews and accreditation don't.
What fees does Green Mountain charge, and how do I cancel?
Leaving the 12-month plan early costs $150. But you pay nothing if you move and give a forwarding address. Here's every fee in its contract.
- No arbitration clause and no class-action waiver, so you can go to court.
- No cancel fee if you move and give a forwarding address.
- One simple energy rate, with no bill credits or usage tiers.
- Every plan is 100% renewable.
- Only the legal 3-day window to cancel free, and no satisfaction guarantee.
- Bills come by email only. Keep a working email on file, or you may owe fees.
- You may need a deposit, based on your credit.
- $25 disconnect-notice and $25 disconnect-recovery fees.
Changed your mind? If you switched to Green Mountain from another company, you can cancel within three federal business days of getting your terms, with no fee. Behind on a bill? Ask Green Mountain about a payment plan, call 211 for local help, or see help paying your electric bill.
Has Green Mountain Energy been fined?
Yes, once in the last 10 years. In 2016, the state approved a $900,000 penalty that named Green Mountain and three other NRG companies. The order didn't split the amount, so our method counts all $900,000 against each company named.
Same owner, but different plans, prices and records. Green Mountain was named with Reliant in the 2016 penalty below.
- Green Mountain Energy is founded as a renewable-electricity retailer.
- Green Mountain gets its Texas license (certificate 10009), months before the state’s retail market opens in 2002.
- The state’s final order in Docket 46597 sets a $900,000 penalty. It names Green Mountain with Reliant Energy Retail Services, Everything Energy and US Retailers, and doesn’t split the amount. Our Reliant review covers the same order.
- The state’s complaint scorecard rates Green Mountain 3 of 5.
How we checked: we searched the state's case files for Green Mountain and the Texas Attorney General's actions. We found no Attorney General lawsuit. We counted Docket 46597 in full under our shared-penalty rule. Cases older than 10 years don't count toward the score.
Green Mountain vs. TXU Energy
TXU scores higher overall, 80 to 68. TXU wins on complaints and gives you longer to cancel free. Green Mountain wins on price and renewable power, and its contract has no arbitration clause.
Complaint counts aren't adjusted for company size; the state's rating is. TXU figures come from our TXU Energy review.
Keep readingRead our full TXU Energy reviewWhat is Green Mountain Energy's phone number?
Call 1-866-785-4668, 7 a.m. to 10 p.m. Central, seven days a week. For a power outage, call your utility instead. Green Mountain sells the power, but it doesn't own the lines.
Power out? Call the company that owns your lines
Green Mountain is paperless. Bills and contract notices come by email, so keep a working email address on file. Its fact label says you may owe certain fees if you don't. Learn more in our power outage guide.
Green Mountain Energy questions, answered
Is Green Mountain Energy a good electricity provider?
It's fair. Green Mountain scores 68 out of 100 on our public-records scorecard. It gets full marks at the BBB and strong marks for price and contract terms, and it sells 100% renewable power. It loses points for a middle complaint rating, 3 of 5, and a $900,000 state penalty in 2016.
Is Green Mountain Energy really 100% renewable?
Yes, through certificates. Green Mountain buys renewable energy certificates to match 100% of the power you use each year. Its Pollution Free power is at least 51% Texas wind, with the rest from U.S. wind. The power in your wires is still the same grid mix your neighbors get. The Texas average is 37% renewable.
Who owns Green Mountain Energy?
NRG Energy, a big public power company, owns Green Mountain. NRG also owns Reliant, Direct Energy and Cirro in Texas. Green Mountain started in 1997 and got its Texas license in 2001.
How much does Green Mountain charge to cancel?
$150 on its 12-month plan. Green Mountain waives the fee if you move and give a forwarding address. If you switched from another company, you can also cancel within three federal business days of getting your terms, with no fee.
How much does Green Mountain's plan cost?
Its Pollution Free e-Plus 12 plan costs about 15.1¢ per kWh at 1,000 kWh in Houston. That's about $151 a month with delivery, before taxes, and below the 15.88¢ Texas average. You pay one energy rate of 7.5419¢ plus a $5 monthly base charge. There are no bill credits or usage tiers.
How many complaints does Green Mountain get?
Texans filed 83 complaints about Green Mountain with the state from April through September 2026. Adjusted for its size, the state rates it 3 of 5, the middle group. The BBB gives it an A+ letter grade.
Has Green Mountain Energy been fined?
Yes, once in the last 10 years. In 2016, the state approved a $900,000 penalty (Docket 46597). It named Green Mountain along with Reliant and two other NRG companies. The order didn't split the amount, so we count the full $900,000 against each company named.
Does Green Mountain's contract force arbitration?
No. Its home contract has no arbitration clause and no class-action waiver. That means you keep your right to take a dispute to court. That's better than many big Texas providers, including TXU.
Is Green Mountain better than TXU?
TXU scores higher on our scorecard, 80 to 68, mainly because of its 5-of-5 complaint rating. But Green Mountain's plain plan costs less, it's 100% renewable instead of 3%, and its contract has no arbitration clause. Which is better depends on what matters most to you.
What is Green Mountain Energy's phone number?
Call 1-866-785-4668. The line is open 7 a.m. to 10 p.m. Central, seven days a week. For a power outage, call your utility instead, like Oncor at 1-888-313-4747 or CenterPoint at 713-207-2222.
Does Green Mountain Energy serve Dallas?
Yes, it serves the Oncor area, including Dallas. But it had no 12-month fixed plan listed for Dallas on Power to Choose as of October 4, 2026. You'll see its Dallas prices after you enter your address on its website.
Sources and updates
Sources (9)
- Green Mountain Energy, Pollution Free e-Plus 12 Choice Electricity Facts Label for ZIP 77002 (CenterPoint), dated September 30, 2026.
- Green Mountain Energy, Residential Terms of Service: fees, deposits, cancellation, renewal and the absence of an arbitration clause.
- Power to Choose (PUCT), plan and provider data export, pulled October 4, 2026: Green Mountain complaint rating (3 of 5) and 1,000 kWh prices by utility.
- Public Utility Commission of Texas, Customer Complaint Statistics, April 1 to September 30, 2026.
- Power to Choose (PUCT), Retail Electric Provider Complaint Scorecard, September 2026 (complaint rates March 1 to August 31, 2026), which also lists Green Mountain’s license date, August 2, 2001.
- Better Business Bureau, Green Mountain Energy Company profile, checked October 4, 2026.
- PUCT Docket 46597, final order, December 16, 2016: $900,000 penalty naming Green Mountain Energy, Reliant Energy Retail Services, Everything Energy and US Retailers.
- U.S. Energy Information Administration, Electric Power Monthly, Table 5.6.A: Texas average residential price, July 2026 (15.88¢/kWh).
- NRG Energy, Inc., annual report (Form 10-K): ownership of Green Mountain Energy and audited financials.
Changelog · last updated October 4, 2026 · 1 update
- October 4, 2026: Review published. Score: 68 out of 100. Price from Green Mountain's September 30, 2026 fact label for Houston; Dallas (Oncor) 12-month fixed plan not listed on Power to Choose, so price scored on Houston only.
How to cite this page: The Day Company, "Is Green Mountain Energy worth it? Our 2026 review", updated October 4, 2026, https://theday.company/tx/green-mountain-energy-review.
Scores use public records only and the same formula for every company; see how we score. Prices are Green Mountain's own fact-label averages for the ZIP code shown, dated September 30, 2026, and change often; your price depends on your address and plan. The Day Company is not affiliated with Green Mountain Energy, NRG Energy or any retail electric provider. No company pays for placement or a better score, and we earn no referral fees from this review.