Green Mountain Energy vs Rhythm Energy: Texas Electricity Plans Compared
A side-by-side look at both providers' current listed plans, compared on structure and estimated cost — not brand loyalty. Data updated October 16, 2026.
Estimated costs are informational. Provider rates and plan terms may change. Confirm current details directly with the provider.
Green Mountain Energy and Rhythm Energy occupy the same niche — plans marketed as 100% renewable — from opposite ends of the market. Green Mountain, founded in 1997 and owned by NRG Energy, is the longest-established renewable-focused retail brand in the country. Rhythm is an independent Houston provider that began serving customers in 2021. Comparing them is really a comparison of what the renewable label costs from a legacy brand versus a newer independent.
TrueBill Energy is an independent comparison site, not affiliated with Green Mountain Energy or Rhythm Energy. We don't declare winners: which provider fits you depends on your usage pattern, and catalogs change weekly. See how we make money.
Green Mountain Energy currently has no plans in our public listings
We don't show outdated rates as current, so live pricing appears for one side only until fresh data returns. The structural comparison below still applies.
Head to Head, Based on Current Listings
Live inventory from the state plan feed, deduplicated and quality-checked — the same data the compare tool ranks. Updated October 16, 2026. EFL average prices include delivery charges; ranges span plans and delivery territories.
| Green Mountain Energy | Rhythm Energy | |
|---|---|---|
| Active plans listed | None currently | 6 |
| Avg price range at 500 kWh | — | 9.6–22.7¢ |
| Avg price range at 1,000 kWh | — | 7.5–15.2¢ |
| Avg price range at 2,000 kWh | — | 9.8–16.1¢ |
| Contract lengths (months) | — | 3, 6, 12, 24, 36 |
| Fixed-rate plans | — | Yes |
| Variable-rate plans | — | No |
| Bill-credit plans | — | 6 of 6 plans |
| Free nights / time-of-use plans | — | None listed |
| Minimum-usage-fee plans | — | None listed |
| Cancellation fees | — | Not verified (see each EFL) |
| Delivery territories | — | All 5 territories |
Every Listed Plan, Side by Side
All publicly listed residential plans from both providers, sorted by cheapest EFL average price at 1,000 kWh.
| Provider | Plan | Term | 500 kWh | 1,000 kWh | 2,000 kWh | Notes |
|---|---|---|---|---|---|---|
| Rhythm Energy | Rhythm Max Saver 24 | 24 mo | 19.8–22.7¢ | 7.5–9.9¢ | 13.8–16.1¢ | $125 credit at 1,000+ kWh |
| Rhythm Energy | Digital Choice 3 | 3 mo | 9.6–12.6¢ | 9.7–12.3¢ | 9.8–12.2¢ | $5 credit at 1+ kWh |
| Rhythm Energy | Digital Choice 6 | 6 mo | 10.3–13.2¢ | 10.4–12.9¢ | 10.5–12.8¢ | $5 credit at 1+ kWh |
| Rhythm Energy | Digital Choice 12 | 12 mo | 11.0–14.0¢ | 11.1–13.7¢ | 11.2–13.6¢ | $5 credit at 1+ kWh |
| Rhythm Energy | Digital Choice 24 | 24 mo | 12.5–15.5¢ | 12.7–15.2¢ | 12.8–15.1¢ | $5 credit at 1+ kWh |
| Rhythm Energy | Digital Choice 36 | 36 mo | 12.9–14.2¢ | 13.1–14.3¢ | 13.2–14.4¢ | $5 credit at 1+ kWh |
EFL average prices in cents/kWh, including delivery charges. Ranges reflect different delivery (TDSP) territories. A low 1,000 kWh price on a bill-credit plan does not carry to lower usage levels — check the 500 kWh column. Confirm current rates and terms with the provider before enrolling.
How Green Mountain Energy and Rhythm Energy Differ Structurally
Both providers back their renewable marketing with renewable energy certificates, so the practical differences are price, structure, and fee mechanics. Green Mountain's current listings are one structure — flat fixed-rate Pollution Free plans at four term lengths — priced toward the premium end of our data. Rhythm's current listings are also flat — Digital Choice plans at noticeably lower average prices — though Rhythm has rotated bill-credit plans through its catalog before and may again; the live table above shows what's listed right now. Cancellation fees differ structurally: Green Mountain's plan documents list flat fees that step up with term length, while Rhythm's list smaller amounts typically charged per month remaining on the contract.
Which May Fit You, Based on Plans Available Today
- Shoppers who specifically want the longest-established renewable-marketed brand and accept a price premium for it
- People who want the simplest possible catalog — one flat structure, four term lengths, no thresholds
- Anyone who prefers a known flat cancellation fee over a per-month-remaining formula
- Cost-conscious renewable shoppers — Rhythm's current listed rates run below Green Mountain's at every standard usage level
- People likely to move mid-contract, since a per-month-remaining fee shrinks as the term runs down
- Shoppers comfortable with a newer independent brand in exchange for the lower listed prices
Neither provider is the better choice for everyone. Offers rotate weekly, and the structure that wins at 2,000 kWh can lose at 500 kWh — rank both by estimated monthly cost at your own usage before deciding.
Green Mountain Energy vs Rhythm Energy: Common Questions
Is Green Mountain or Rhythm actually greener?
Which costs less right now?
How do their cancellation fees differ?
Does either offer free nights or time-of-use plans?
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Estimated costs are informational. Provider rates and plan terms may change. Confirm current details directly with the provider.