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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 logo

Green Mountain Energy

4

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

Green energy is a real priority, not just a checkboxYou want a provider with 29 years of renewable-only track recordYou have solar panels and want a buyback program
Price position: Competitive
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Best for: Zero-carbon priority
Constellation logo

Constellation

4

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

You want a Fortune 500-backed provider with real generating assets behind the nameClean energy matters--and you want it from a company that actually owns power plantsYou prefer simple fixed-rate plans without free-nights gimmicks or tiered pricing games
Price position: Competitive
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Best for: Green + value balance
Gexa Energy logo

Gexa Energy

4

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

You want competitive rates without gimmicky plan structuresGreen energy matters--every Gexa plan is 100% renewableYou have decent credit and don't need prepaid
Price position: Competitive
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Best for: Solar homeowners
Rhythm Energy logo

Rhythm Energy

4

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

You have solar panels--Rhythm's buyback program is competitive and well-designedYou want 100% renewable energy without paying a green premiumYou prefer managing everything through an app, not a phone call
Price position: Competitive
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Best for: Green from big brands
Reliant Energy logo

Reliant Energy

4

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

You want time-of-use plans that actually work--Truly Free Nights/Weekends are the real deal if you shift usageYou need prepaid power with no credit check and no depositYou value a solid mobile app and 24/7 customer support
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.

"Great experience made comparing energy companies easy and helped me get out of a bad deal."

— Yolanda D., Texas

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