US retail energy supplier

Think Energy US

A subsidiary of ENGIE Resources (the US arm of French energy group ENGIE SA), Think Energy is one of the larger competitive Retail Electric Providers in the United States, serving households across 12 jurisdictions (CT, DC, DE, IL, ME, MD, MA, NJ, NY, OH, PA, TX).

See Think plans Call 1-888-923-3633

Houston, TX 12 states served

About

Who is Think Energy?

Registered as ENGIE Retail, LLC (dba Think Energy), Think Energy uses this legal name for state public-utility-commission filings and customer contracts. The trading name on bills is the shorter, more recognisable form.

The company is headquartered in Houston, TX, where it runs senior management, customer operations and regulatory liaison with state commissions.

Think Energy is part of the ENGIE Resources (ENGIE SA — Euronext Paris: ENGI) group, which provides shared governance, financial backing and a broader pool of expertise in wholesale-market trading, hedging and regulatory work.

Ownership & corporate

Who owns Think Energy?

Legal name: ENGIE Retail, LLC (dba Think Energy)
Parent company: ENGIE Resources (ENGIE SA — Euronext Paris: ENGI)
Publicly listed: Indirectly via parent ENGIE SA (Euronext: ENGI)
Main shareholders: Ultimately owned by ENGIE SA, a CAC 40 French multinational utility. ENGIE SA is approximately 23% state-owned (French Government).
Headquarters: 1990 Post Oak Blvd, Suite 1900 Houston, TX 77056

Service area

Where Think Energy operates

Electricity

12 states

Service availability varies by zip code within each state. Eligibility depends on your local utility's deregulation status — check on Think Energy's website with your zip code before enrolling.

Plan structure

What plan types does Think Energy offer?

Fixed-rate electricity

Lock in a ¢/kWh unit rate for 12, 24 or 36 months. The most popular Think Energy product.

Variable-rate electricity

Unit rate adjusts each billing cycle with wholesale market prices.

100% green electricity

Fixed-rate plans matched with Green-e certified RECs covering all your consumption.

Renewable content: Think Energy is backed by ENGIE, one of the world's largest renewable-energy developers. Its US 100% green plans are matched with Green-e certified Renewable Energy Certificates.

See current Think plans & rates

Timeline

Think Energy — key moments

2007

Think Energy launched as a competitive Retail Electric Provider, initially in the Texas (ERCOT) market.
2014

Think Energy acquired by GDF Suez (now ENGIE) as part of its expansion into US retail-energy supply.
2015

GDF Suez rebranded globally as ENGIE; Think Energy became a wholly-owned subsidiary of ENGIE Resources.
2024

ENGIE consolidated and expanded the US retail-energy footprint, with Think Energy serving 12 jurisdictions including DC.

Contact

Reach Think Energy customer service

Think Energy's customer service handles enrollment questions, billing, switching and complaints. Have your account number from a recent bill ready to speed up the call.

Have your Think Energy account number from a recent bill ready to speed up the call.
For outages or downed wires, contact your local utility (TDU in Texas) — Think Energy does not handle the physical grid.
Think Energy is the US residential retail brand of ENGIE; ENGIE also serves commercial and industrial customers under its own name.
For Texas plans, always read the Electricity Facts Label (EFL) before enrolling.

Customer service

1-888-923-3633

Mon-Fri 8 a.m. - 8 p.m., Sat 9 a.m. - 5 p.m. ET

Think Energy online account

Frequently asked

Think Energy — answers to common questions

Think Energy is regulated by the public utility commission in each state where it operates. Reliability is best judged against your own usage profile: read recent reviews, confirm the customer-service hours match when you actually need to call, and compare the unit rate against the utility's price-to-compare for your zip code.

Plans can typically be enrolled directly on Think Energy's website or by calling 1-888-923-3633. Before signing up, always compare the unit rate (¢/kWh for electricity, $/therm for gas) against your utility's price-to-compare for your zip code.

You can switch your retail supplier at any time, though early termination fees (typically $50-$200) may apply if you are on a fixed-rate plan and within the contract term. Check your enrollment letter or Terms of Service for the exact figure. Switching back to your default utility supply is always free.