Green Mountain Best for Green Energy

Green Mountain

NRG brand. One of the first 100% wind-powered retailers in Texas.

4.3 · 1,880 reviews HQ: Austin, TX Est. 1997 4 plans

By the numbers

Green Mountain at a glance.

Lowest rate
17.51¢
Average rate
17.64¢
Plans
4
Rating
★ 4.3

What stands out

Green Mountain highlights.

Long-term price lock

Lock in your rate for 24+ months. Insulated from market spikes.

100% renewable plans

Texas-sourced wind and solar. Verified renewable energy certificates.

What's in the box

Included vs. add-ons.

Included with all plans

  • TDU delivery charges built into the rate
  • Online account portal & mobile app
  • 24/7 customer support
  • Rate lock guarantee on fixed-term plans
  • No surprise fees outside of the EFL
  • Free monthly usage alerts

Available add-ons

  • Smart thermostat enrollment program
  • 100% renewable energy upgrade
  • Budget billing (level monthly payments)
  • Auto-pay & paperless billing discount
  • Referral rewards program
  • Appliance & wiring protection plan

Specific inclusions vary by plan. Always confirm against the EFL (Electricity Facts Label) for the plan you're considering.

Side by side

Green Mountain vs. top providers.

Green Mountain Green Mountain Viewing now
Rating
★ 4.3
Lowest
17.51¢
Average
17.64¢
Plans
4
Best for Green Energy
Rating
★ 4.8
Lowest
9.66¢
Average
15.20¢
Plans
4
Best for Green Energy
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Rating
★ 4.7
Lowest
9.66¢
Average
14.68¢
Plans
5
Best for Green Energy
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Rating
★ 4.4
Lowest
7.70¢
Average
14.29¢
Plans
16
Best for Low Rates
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Every plan, ranked honestly

Green Mountain plans.

Real customers, real bills

Customer reviews.

4.3
1,880 reviews

Rating distribution

5
34%
4
59%
3
6%
2
0%
1
0%
Verified

Smooth signup, no surprises on the first bill

Switched from another REP last month. Sign-up was 4 minutes online and the first Green Mountain bill matched the EFL exactly. Customer service was easy to reach when I had a question about auto-pay.

Marcus T.
Houston, TX · Pollution Free Conserve 24
April 22, 2026
Verified

Solid rate, app could be better

Rate is one of the lowest I found at my usage. The mobile app is functional but feels dated. Otherwise no complaints — bills have been steady for 8 months.

Priya S.
Dallas, TX · Pollution Free Conserve 12
April 8, 2026
Verified

Fast switch, kept my old account number

Moved across town and Green Mountain ported my account in two days. No truck roll, no service gap. Their renewal team called me a month before contract end with a competitive offer.

Jen R.
Austin, TX · Pollution Free e-Plus 24
March 19, 2026

Bill creep after the promo period

The first 12 months were great. After renewal my rate climbed quite a bit and I had to call to negotiate. Locked back in at a fair price but it wasn't automatic. Read the EFL carefully.

David K.
Fort Worth, TX · Pollution Free e-Plus 12
March 2, 2026
Verified

Great pick for our 2,400 sq ft home

We use 1,400+ kWh in summer and the per-kWh price Green Mountain quoted held up. Bill credit kicked in correctly. Easy to recommend.

Amanda L.
San Antonio, TX · Pollution Free Conserve 24
February 14, 2026
Verified

Reliable. Just reliable.

Power has never gone out from anything Green Mountain controls (TDU outages don't count). Billing is consistent. Online portal works. Nothing flashy, but nothing wrong either.

Carlos M.
El Paso, TX · Pollution Free Conserve 12
January 27, 2026

Have experience with Green Mountain? Help the next Texan choose smart.

5 minutes, no truck roll

How to switch to Green Mountain.

  1. 1

    Pick a plan

    Compare the 4 Green Mountain plans by rate, term length, and renewable %. Confirm the EFL matches what you saw.

  2. 2

    Enroll online

    Sign up in under 5 minutes — no paperwork, no phone tree. Bring your ZIP, address, and a recent bill if you have one.

  3. 3

    Switch is automatic

    Green Mountain files the switch with your TDU. No service interruption, no new equipment, no truck roll. Your meter and wires stay the same.

Company background

About Green Mountain.

NRG brand. One of the first 100% wind-powered retailers in Texas.

Established
1997
29 years in Texas
Headquarters
Austin, TX
Active plans
4
Avg rate
17.64¢
at 1,000 kWh

Green Mountain FAQ

Common questions about Green Mountain.

What does Green Mountain charge per kWh?

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Green Mountain plans range from 17.51¢/kWh on the cheapest fixed plan to roughly 17.76¢/kWh on its premium products. The average across all 4 plans is 17.64¢/kWh at 1,000 kWh of monthly usage. Always check the EFL — advertised rates can differ at 500 or 2,000 kWh.

Is Green Mountain a legitimate Texas REP?

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Yes. Green Mountain is a licensed Retail Electric Provider in Texas, founded in 1997 and headquartered in Austin, TX. It's regulated by the Public Utility Commission of Texas (PUCT) and serves customers across the deregulated Texas market.

How long does it take to switch to Green Mountain?

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Most enrollments process in 1–3 business days. Green Mountain files the switch with your local TDU (Oncor, CenterPoint, AEP, or TNMP) — there's no service interruption, and your meter and wires don't change. Same-day or next-day moves are available for new addresses with priority enrollment.

Does Green Mountain require a deposit?

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Green Mountain typically runs a soft credit check at enrollment. Customers with strong credit usually pay no deposit. If a deposit is required, it's typically refunded after 12 months of on-time payments. To skip the deposit entirely, look at prepaid options or a co-signer.

What's the early termination fee with Green Mountain?

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On fixed-rate plans, ETFs typically run $150 (under 12 months), $250 (12-month plans), or $295 (24+ month plans). Month-to-month variable plans have no ETF. The exact fee is listed in the EFL for each plan — always verify before signing.

Can I keep Green Mountain if I move within Texas?

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Yes, as long as you're moving to another deregulated area on a TDU Green Mountain serves. You'll typically transfer your plan to the new address without paying an ETF. If you move to a regulated market or municipal utility area (like Austin Energy or CPS), you'll need to cancel — most providers waive the ETF in that case with proof of address.

Ready to enroll with Green Mountain?

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