Constellation Best for Reliability

Constellation

Exelon subsidiary. Large national brand with Texas fixed and renewable plans.

3.9 · 2,010 reviews HQ: Baltimore, MD Est. 1999 5 plans

By the numbers

Constellation at a glance.

Lowest rate
12.70¢
Average rate
14.22¢
Plans
5
Rating
★ 3.9

What stands out

Constellation highlights.

Long-term price lock

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

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

Constellation vs. top providers.

Constellation Constellation Viewing now
Rating
★ 3.9
Lowest
12.70¢
Average
14.22¢
Plans
5
Best for Reliability
Rating
★ 4.8
Lowest
8.30¢
Average
14.52¢
Plans
4
Best for Green Energy
View provider →
Rating
★ 4.7
Lowest
8.30¢
Average
14.00¢
Plans
5
Best for Green Energy
View provider →
Rating
★ 4.4
Lowest
7.20¢
Average
14.41¢
Plans
20
Best for Low Rates
View provider →

Every plan, ranked honestly

Constellation plans.

2
Constellation
Constellation

24 Month Usage Bill Credit

Rate
13.10¢
Term
24 Months
$1000 kWh
$131
  • 30% green
  • $35 bill credit when your usage is at least 1000kWh
  • Additional $15 bill credit when your usage is at least 2000kWh
View plan →

Public review aggregate

Constellation overall rating.

3.9
2,010 public reviews
Weighted aggregate from BBB, PUCT, and Trustpilot. Individual reviews from our own customers are coming soon.

Have experience with Constellation? Help the next Texan choose smart.

5 minutes, no truck roll

How to switch to Constellation.

  1. 1

    Pick a plan

    Compare the 5 Constellation 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

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

Provider profile

InsideConstellation.

Constellation is the retail arm of Exelon — one of the largest U.S. utility holding companies. Texas operations are part of a national retail footprint that includes Illinois, Pennsylvania, Maryland, and Ohio.

Broad Texas lineup of fixed and renewable plans. Rates are middle-of-the-pack; the value proposition is Exelon's national scale and regulatory stability.

Best fit if you...

  • Customers who value working with a large, financially stable national company.
  • Households with sister-utility relationships in other Exelon states.

Watch out for

  • !Rarely the cheapest option in best-of comparisons.
  • !National brand means Texas-specific customer-service responsiveness can be slower than Texas-only REPs.

What makes Constellation different

Largest Texas REP backed by an investor-owned multi-state utility holding company.

Company background

About Constellation.

Exelon subsidiary. Large national brand with Texas fixed and renewable plans.

Established
1999
27 years in Texas
Headquarters
Baltimore, MD
Active plans
5
Avg rate
14.22¢
at 1,000 kWh

Constellation FAQ

Common questions about Constellation.

What does Constellation charge per kWh?

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Constellation plans range from 12.70¢/kWh on the cheapest fixed plan to roughly 16.10¢/kWh on its premium products. The average across all 5 plans is 14.22¢/kWh at 1,000 kWh of monthly usage. Always check the EFL — advertised rates can differ at 500 or 2,000 kWh.

Is Constellation a legitimate Texas REP?

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Yes. Constellation is a licensed Retail Electric Provider in Texas, founded in 1999 and headquartered in Baltimore, MD. 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 Constellation?

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Most enrollments process in 1–3 business days. Constellation 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 Constellation require a deposit?

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Constellation 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 Constellation?

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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 Constellation if I move within Texas?

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Yes, as long as you're moving to another deregulated area on a TDU Constellation 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 Constellation?

Enter your ZIP and we’ll show every Texas plan available on your meter — sorted by true cost at your actual usage.

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