Green Mountain Energy vs Think Energy
Quick Verdict
Green Mountain Energy has 27 years in Texas. Think Energy has 5. That's not nothing—Green Mountain Energy survived every grid crisis since 1999.
Experience matters for stability. Price matters for your wallet. Check both on ComparePower.
22-Year Experience Gap
Green Mountain Energy: 27 years in Texas. Think Energy: 5 years. Companies don't survive 27 Texas summers by accident.
Complaint Comparison
PUCT Data • Jul-Dec 2025
Green Mountain Energy
Think Energy
Green Mountain Energy has 2.1 fewer complaints per 10k customers
Trust & Reputation
External ratings comparison
Trust Score is a weighted average: Google (40%), BBB (35%), Trustpilot (25%)
The Verdict
- You want a company that's survived 27 Texas summers (Think Energy has 5)
- You want more green plan variety (check if they have actual renewable generation backing)
- You need month-to-month—Think Energy locks you in for 6 months minimum
- You want a multi-state company with Texas presence
- You prioritize 100% renewable energy options
- You prefer online-first electricity shopping
Category Breakdown
27 years vs 5—22+ more grid crises survived
Both sell green plans—check who has actual renewable generation backing
Rates change constantly. Check ComparePower with your actual usage.
Side-by-Side Comparison
| Feature | Green Mountain Energy | Think Energy |
|---|---|---|
| Parent Company | NRG Energy (NYSE: NRG) | Independent |
| Years in Texas | 27+ | 5+ |
| Headquarters | Austin, Texas | Philadelphia, Pennsylvania |
| Fixed-Rate Plans | ||
| Variable Plans | ||
| Prepaid Options | ||
| Green Energy | ||
| Free Nights/Weekends | ||
| Deposit Required | Conditional | Conditional |
| Credit Check |
What Actually Differs
Green Mountain Energy and Think Energy deliver the exact same electricity through the exact same wires. The electrons don't care whose logo is on your bill. What differs: the price, the service when something goes wrong, and the fine print in contracts.
Who's Behind These Companies
Green Mountain Energy: Owned by NRG Energy (NYSE: NRG). 27 years in Texas—they've survived enough grid crises to prove they won't fold mid-contract. Based in Austin, Texas.
Think Energy: Owned by Independent. 5 years in Texas—that track record matters when you're signing a multi-year contract. Based in Philadelphia, Pennsylvania.
What They Actually Sell
Green Mountain Energy offers fixed-rate, variable-rate, green. They sell "green" plans (mostly accounting—same electrons, but they buy renewable credits).
Think Energy offers fixed-rate, variable-rate, green. They sell "green" plans (mostly accounting—same electrons, but they buy renewable credits).
The Money Part
Green Mountain Energy: Deposit depends on credit—expect $200-400 if your score is below 600.
Think Energy: Deposit depends on credit—expect $200-400 if your score is below 600.
The Honest Answer
Both are legitimate. Neither is a scam. The electricity is identical. What matters is: (1) who's cheaper for your actual usage, (2) whether you need to skip a credit check, and (3) if you care about green marketing. Scroll up to the "Choose if..." sections—they'll tell you which one fits your situation. For actual rates, check ComparePower. Takes 2 minutes.
Company Snapshots
Green Mountain Energy
- Parent Company
- NRG Energy (NYSE: NRG)
- Years in Texas
- 27+
- Headquarters
- Austin, Texas
- Deposit Required
- conditional
Think Energy
- Parent Company
- Independent
- Years in Texas
- 5+
- Headquarters
- Philadelphia, Pennsylvania
- Deposit Required
- conditional
More Head-to-Head Matchups
See who wins when Green Mountain Energy and Think Energy face other competitors.
Featured In Best-Of Lists
See where Green Mountain Energy and Think Energy are featured in our category guides.
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"I like that it searched multiple companies for me. So I don't have to search one by one. Saves time."
— Lacy L., Texas
See Current Rates
Compare current plans from both companies.
Frequently Asked Questions
Q: When should I choose Green Mountain Energy over Think Energy? ▼
You want a company that's survived 27 Texas summers (Think Energy has 5). You want more green plan variety (check if they have actual renewable generation backing). You need month-to-month—Think Energy locks you in for 6 months minimum.
Q: When should I choose Think Energy over Green Mountain Energy? ▼
You want a multi-state company with Texas presence. You prioritize 100% renewable energy options. You prefer online-first electricity shopping.
Q: What is the main difference between Green Mountain Energy and Think Energy? ▼
Green Mountain Energy leads in track record. Both companies deliver the same electricity through the same grid—the real differences are in pricing, service quality, and available plan types.
Q: Is Green Mountain Energy or Think Energy cheaper? ▼
Anyone who answers this without knowing your zip code and usage is lying. The "advertised rate" is calculated at exactly 1,000 kWh—use 800 or 1,200 and the math changes completely. Both companies exploit this. Check ComparePower with your actual usage. Takes 2 minutes, and you'll see real numbers instead of marketing.
Q: Which company has been in Texas longer, Green Mountain Energy or Think Energy? ▼
Green Mountain Energy: 27 years. Think Energy: 5 years. That 22-year gap matters—Green Mountain Energy survived the 2011 freeze, the 2021 disaster, and every summer in between. Track records like that don't happen by accident.
Q: Which is better for green energy, Green Mountain Energy or Think Energy? ▼
Both sell "green" plans. But "green" in Texas electricity means they buy renewable energy credits—it's accounting, not physics. Your electrons come from the same grid as everyone else. Want to know which has renewable generation backing versus just buying paper credits? Gexa has NextEra (the largest renewable generator in the US) behind them. Most others just buy credits. That's the difference.
Q: What types of plans do Green Mountain Energy and Think Energy offer? ▼
Green Mountain Energy: fixed-rate, variable-rate, green. Think Energy: fixed-rate, variable-rate, green. Similar variety. Both have enough options for most situations.
Q: Which is better overall, Green Mountain Energy or Think Energy? ▼
Same grid. Same wires. Same electrons. The electricity is literally identical—the only differences are price, service, and plan options. Green Mountain Energy wins if you'll pay 15-25% more for authentic renewable energy--and feel good about it. Think Energy wins if you want a multi-state company with texas presence. For everyone else? Whoever's cheaper for your usage right now. Check ComparePower—it takes 2 minutes.