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Green Mountain Energy Review 2026: Plans, Rates & Is It Good?
Updated on September 28, 2026
5 min read
What is Green Mountain Energy?
Green Mountain Energy is a retail electricity provider focused on 100% renewable energy, part of NRG. It supplies green electricity in deregulated markets while your local utility delivers the power. Founded in 1997, it markets itself as the longest-serving all-renewable retail provider.
Where is Green Mountain Energy available?
Green Mountain serves Texas and select other deregulated states. Availability and plans differ by state and utility territory, so enter your ZIP to see whether Green Mountain serves your address and what its current rate is.
Green Mountain Energy plans and rates (2026)
Electricity rates change constantly and depend on your usage and utility territory, so we don’t quote a single price — instead, here are the plan types Green Mountain Energy is known for. Always check the current rate and the Electricity Facts Label (EFL) for your address before enrolling.
| Plan type | How it works | Best for |
|---|---|---|
| Pollution Free (100% renewable) | Fixed green energy | Eco-conscious homes |
| Solar buyback | Credit for home solar export | Solar owners |
| Fixed & variable options | Standard plan structures | Flexibility |
Compare Green Mountain Energy’s live rates against other providers on the Green Mountain Energy site and through our comparison tools.
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Is Green Mountain Energy legit and a good provider?
Green Mountain is a long-established, licensed provider and a recognized leader in renewable retail energy. Its rates run a bit higher than bare-bones plans in exchange for 100% renewable sourcing — read the EFL and compare before signing.
Green Mountain Energy pros and cons
| Pros | Cons |
|---|---|
| 100% renewable pioneer; solar buyback | Green plans can cost more than budget plans |
| Available in multiple deregulated states | Availability/plans vary by state |
| Backed by NRG | Promo rates rise after the term |
How to switch to or cancel Green Mountain Energy
Switching electricity providers in a deregulated market is simple: compare current plans for your address, pick one, and the new provider handles the switch — there’s usually no interruption in service. If you’re on a fixed-term plan, check the Electricity Facts Label for any early termination fee before leaving. Start by comparing Green Mountain Energy against other providers by ZIP.
Paying Too Much for Electricity?
Rates change constantly, and loyalty rarely pays. Compare electricity plans available at your address — fixed-rate, variable, and green options, side by side.
Green Mountain Energy for business: 100% renewable business plans
Green Mountain Energy, an NRG retail brand and the longest-serving renewable retailer in the U.S., sells fixed-price, 100%-renewable electricity plans to small businesses and separate commercial supply for medium and large businesses, with a sustainability-partner program for companies that want to market the renewable claim. As of September 28, 2026 it publishes no small-business prices or term lengths; quotes come from the business quote form or 1-866-785-4668, and the residential footprint (Texas, Pennsylvania, New York, New Jersey, Massachusetts, Illinois) is the best guide to where business plans are sold. The premium you are paying for is the renewable energy certificates behind the plan; hold the quote against a comparable non-renewable business quote to see what that costs, and in Texas against Champion’s public 9.7¢ energy charge on Oncor.
| Business plan | Price | Terms |
|---|---|---|
| Small business, 100% renewable fixed-price | Custom quote; 1-866-785-4668 | Fixed price; renewable energy certificates; carbon-neutral company |
| Medium and large business | Custom quote | Structured commercial supply |
| Sustainability partner program | By agreement | Marketing rights to the renewable claim |
Source: the company’s own business pages (and NRG Business’s Texas small-commercial terms of service, REP #10011, for the NRG brands; Pulse Power small-commercial agreement summary Ver 090119TX), read September 28, 2026. Commercial electricity is priced per meter; treat these as the published starting points.
What a commercial contract adds over the residential plan on this page: a price built from your meter’s 12-month usage and load factor rather than a published rate card, term choices from 12 to 36 months or longer, a base charge and pass-through structure that differ from the residential EFL, and exit terms that scale with the months remaining. Compare every business quote as an all-in price at your real usage — the method is in our cheapest business electricity guide and the supplier field is compared in business electricity providers.
Business shopper? Compare business electricity providers, read how the cheapest business contracts are built, or talk to a commercial specialist.
Green Mountain Energy FAQ
Is Green Mountain Energy good?
Green Mountain is a strong choice if 100% renewable energy and solar buyback matter to you. Its rates can be higher than budget plans, so compare its current rate against other providers at your address.
Is Green Mountain Energy 100% renewable?
Yes. Green Mountain’s residential plans are backed by 100% renewable energy, and it was one of the first retail providers built entirely around clean power.
What states is Green Mountain Energy in?
Green Mountain serves Texas and several other deregulated states; availability varies by state and utility. Enter your ZIP to confirm.
Who owns Green Mountain Energy?
Green Mountain Energy is owned by NRG Energy.
How do I cancel Green Mountain Energy?
Switch at the end of your term with no fee, or pay an ETF to leave a fixed plan early. Enrolling with a new provider handles the switch — compare options first.
Does Green Mountain Energy offer business electricity?
Yes. Green Mountain Energy sells fixed-price, 100% renewable electricity plans to small businesses and commercial supply to medium and large businesses by custom quote as of September 28, 2026, with no published business prices or terms.
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How do I contact Green Mountain Energy customer service?
Reach Green Mountain Energy customer service at 1-866-785-4668, seven days a week 7am–10pm CST. You can also manage your account, view your bill, and pay through the Green Mountain Energy online portal.
