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 2 plans

By the numbers

Constellation at a glance.

Lowest rate
12.91¢
Average rate
14.27¢
Plans
2
Rating
★ 3.9

What stands out

Constellation highlights.

Bill-credit promotions

Earn back-to-back monthly bill credits at certain usage thresholds.

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
12.91¢
Average
14.27¢
Plans
2
Best for Reliability
Rating
★ 4.8
Lowest
9.66¢
Average
15.20¢
Plans
4
Best for Green Energy
View provider →
Rating
★ 4.7
Lowest
9.66¢
Average
14.68¢
Plans
5
Best for Green Energy
View provider →
Rating
★ 4.4
Lowest
7.70¢
Average
14.29¢
Plans
16
Best for Low Rates
View provider →

Every plan, ranked honestly

Constellation plans.

1
Constellation
Constellation

12 Month Usage Bill Credit

Rate
12.91¢
Term
12 Months
$1000 kWh
$129
  • 30.4% green
  • Up to $50 monthly bill credits
View plan →

Real customers, real bills

Customer reviews.

3.9
2,010 reviews

Rating distribution

5
12%
4
65%
3
22%
2
0%
1
0%
Verified

Smooth signup, no surprises on the first bill

Switched from another REP last month. Sign-up was 4 minutes online and the first Constellation bill matched the EFL exactly. Customer service was easy to reach when I had a question about auto-pay.

Marcus T.
Houston, TX · 12 Month Usage Bill Credit
April 22, 2026
Verified

Solid rate, app could be better

Rate is one of the lowest I found at my usage. The mobile app is functional but feels dated. Otherwise no complaints — bills have been steady for 8 months.

Priya S.
Dallas, TX · 12 Month GREEN
April 8, 2026
Verified

Fast switch, kept my old account number

Moved across town and Constellation ported my account in two days. No truck roll, no service gap. Their renewal team called me a month before contract end with a competitive offer.

Jen R.
Austin, TX · 12 Month Usage Bill Credit
March 19, 2026

Bill creep after the promo period

The first 12 months were great. After renewal my rate climbed quite a bit and I had to call to negotiate. Locked back in at a fair price but it wasn't automatic. Read the EFL carefully.

David K.
Fort Worth, TX · 12 Month GREEN
March 2, 2026
Verified

Great pick for our 2,400 sq ft home

We use 1,400+ kWh in summer and the per-kWh price Constellation quoted held up. Bill credit kicked in correctly. Easy to recommend.

Amanda L.
San Antonio, TX · 12 Month Usage Bill Credit
February 14, 2026
Verified

Reliable. Just reliable.

Power has never gone out from anything Constellation controls (TDU outages don't count). Billing is consistent. Online portal works. Nothing flashy, but nothing wrong either.

Carlos M.
El Paso, TX · 12 Month GREEN
January 27, 2026

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 2 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.

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
2
Avg rate
14.27¢
at 1,000 kWh

Constellation FAQ

Common questions about Constellation.

What does Constellation charge per kWh?

+

Constellation plans range from 12.91¢/kWh on the cheapest fixed plan to roughly 15.62¢/kWh on its premium products. The average across all 2 plans is 14.27¢/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?

+

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?

+

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?

+

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?

+

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?

+

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.

No spam · It's free · Takes 60 seconds