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Best Green Energy Electricity Companies in Texas

The best green energy company in Texas is Green Mountain Energy (100% renewable since 1997). Runners-up: Constellation, Gexa Energy.

Best for: 100% renewable purists

Green Mountain Energy

4

Every plan is 100% renewable - they don't even offer fossil fuel options

You'll pay 15-25% more for authentic renewable energy--and feel good about itEnvironmental track record matters, not just a 'green' labelYou want your electricity company to support wind/solar infrastructure
Price position: Competitive
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Best for: Zero-carbon priority

Constellation

4

Owns nuclear + renewables - largest zero-carbon generator in the U.S.

Carbon-free energy matters--and you want it from a company that generates itYour business has sustainability commitments that require real clean energy sourcingYou want simple fixed-rate plans without promotional games
Price position: Competitive
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Best for: Green + value balance

Gexa Energy

4

Parent NextEra operates 30+ GW of wind/solar - real infrastructure, not just RECs

You want a solid rate without spending hours comparing gimmicksYou don't need prepaid--your credit is fineYou'd rather have a lower rate than rewards points you'll never use
Price position: Competitive
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Best for: Solar homeowners

Rhythm Energy

4

100% Texas wind, solar buyback at retail rate (not the usual wholesale scam)

You have solar panels--Rhythm's buyback rates beat most competitorsYou're tired of EFLs that require a math degree to understandYou use apps and want real-time usage data
Price position: Competitive
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Best for: Green from big brands

Reliant Energy

4

Green plans from NRG - not their focus, but their scale means competitive pricing

You'll use Reliant Rewards (worth $50-$100/year if you do)You want a legit mobile app--theirs is one of the best in TexasYou're already an NRG customer and want everything in one place
Price position: Competitive
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How This Was Decided

These companies are featured based on what matters for this category:

  • Does the company own generation or just buy RECs? (we checked)
  • What % of their plans are 100% renewable vs 'contains some renewable'
  • Green-e certification or equivalent third-party audit
  • Price premium over standard plans (should be under 2 cents/kWh)
  • Solar buyback rate if you have panels

No bias. Same treatment for every company.

Compare These Companies Head-to-Head

See how these companies compare, side by side.

Constellation vs Reliant Energy
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Constellation vs Rhythm Energy
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Gexa Energy vs Rhythm Energy
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Green Mountain Energy vs Rhythm Energy
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Reliant Energy vs Gexa Energy
→
Reliant Energy vs Green Mountain Energy
→
See all head-to-head matchups →

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— Yolanda D., Texas

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