Ambit Energy vs Cirro Energy
Quick Verdict
Plot twist: same corporate parent. Different marketing, same billing system. You're picking which brand name gets your check.
Since they're the same company, check ComparePower to see which brand is offering better rates right now.
Plot twist: Vistra owns both Ambit Energy and Cirro Energy. You're not comparing competitors—you're choosing which division of Vistra gets your money.
Plot Twist: Same Company
Plot twist: Vistra owns both Ambit Energy and Cirro Energy. You're not comparing competitors—you're choosing which division of Vistra gets your money.
What Actually Differs
Ambit Energy and Cirro 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
Ambit Energy: Owned by Vistra Corp (NYSE: VST). 20 years in Texas—they've survived enough grid crises to prove they won't fold mid-contract. Based in Irving, Texas.
Cirro Energy: Owned by NRG Energy (NYSE: NRG). 25 years in Texas—that track record matters when you're signing a multi-year contract. Based in Houston, Texas.
What They Actually Sell
Ambit Energy offers fixed-rate, variable-rate, free-nights, green, solar-buyback. They sell "green" plans (mostly accounting—same electrons, but they buy renewable credits).
Cirro Energy offers fixed-rate, variable-rate, green. They sell "green" plans (mostly accounting—same electrons, but they buy renewable credits).
The Money Part
Ambit Energy: Deposit depends on credit—expect $200-400 if your score is below 600.
Cirro 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 down to "The Verdict" for the quick answer. For actual rates, check ComparePower. Takes 2 minutes.
See how they compare on price
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Category Breakdown
25 years vs 20—5+ 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 | Ambit Energy | Cirro Energy |
|---|---|---|
| Parent Company | Vistra Corp (NYSE: VST) | NRG Energy (NYSE: NRG) |
| Years in Texas | 20+ | 25+ |
| Headquarters | Irving, Texas | Houston, Texas |
| Fixed-Rate Plans | ||
| Variable Plans | ||
| Prepaid Options | ||
| Green Energy | ||
| Free Nights/Weekends | ||
| Deposit Required | Conditional | Conditional |
| Credit Check |
Trust & Complaint Data ▼
Trust & Reputation
External ratings comparison
Trust Score is a weighted average: Google (40%), BBB (35%), Trustpilot (25%)
Complaint Comparison
PUCT Data • Jul-Dec 2025
Ambit Energy
Cirro Energy
Ambit Energy and Cirro Energy have similar complaint rates
The Verdict
- You want more green plan variety (check if they have actual renewable generation backing)
- You use power at night (pool pump, EV charging, night owl habits)
- You need month-to-month—Cirro Energy locks you in for 12 months minimum
- You want green energy baked into every plan--no premium, no special tier
- You prefer simple fixed-rate plans without free nights/weekends complexity
- You want NRG's Fortune 500 stability without Reliant's upselling or Green Mountain's premium
- Bill Bonus plans fit your usage--high-usage households can lock in low effective rates
Done researching? See actual rates.
Ambit Energy or Cirro Energy — find out which one is cheaper at your address.
Frequently Asked Questions
Q: When should I choose Ambit Energy over Cirro Energy? ▼
You want more green plan variety (check if they have actual renewable generation backing). You use power at night (pool pump, EV charging, night owl habits). You need month-to-month—Cirro Energy locks you in for 12 months minimum.
Q: When should I choose Cirro Energy over Ambit Energy? ▼
You want green energy baked into every plan--no premium, no special tier. You prefer simple fixed-rate plans without free nights/weekends complexity. You want NRG's Fortune 500 stability without Reliant's upselling or Green Mountain's premium. Bill Bonus plans fit your usage--high-usage households can lock in low effective rates.
Q: What is the main difference between Ambit Energy and Cirro Energy? ▼
Cirro 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: Are Ambit Energy and Cirro Energy the same company? ▼
Plot twist: yes. Ambit Energy and Cirro Energy are both owned by Vistra Corp. Same corporate parent, same billing system, different marketing. You're not comparing competitors—you're picking which brand name Vistra Corp uses to take your money. The only real question: which brand gets better rates right now. Check ComparePower.
Q: Is Ambit Energy or Cirro 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, Ambit Energy or Cirro Energy? ▼
Cirro Energy: 25 years. Ambit Energy: 20 years. Similar track records. Both have survived enough Texas summers to prove they won't fold mid-contract.
Q: Which is better for green energy, Ambit Energy or Cirro 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 Ambit Energy and Cirro Energy offer? ▼
Ambit Energy: fixed-rate, variable-rate, free-nights, green, solar-buyback. Cirro Energy: fixed-rate, variable-rate, green. Ambit Energy has more options (5 plan types vs 3). More options = more ways to optimize, but also more ways to pick wrong. If you just want simple fixed-rate power, ignore the complexity. If you have specific needs (EV charging at night, pool pump, work-from-home AC), the right specialty plan can save you $50/month.
Q: Which is better overall, Ambit Energy or Cirro Energy? ▼
Same grid. Same wires. Same electrons. The electricity is literally identical—the only differences are price, service, and plan options. Ambit Energy wins if you have an ambit consultant you genuinely want to support. Cirro Energy wins if you want green energy baked into every plan--no premium, no special tier. For everyone else? Whoever's cheaper for your usage right now. Check ComparePower—it takes 2 minutes.
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