Constellation
12 Month (No Min Usage Fee)
Rate
13.80¢
Term
12 Months
$1000 kWh
$138
Rates as of June 2026 · verify on the EFL
- ✓ 30% green
Best for Reliability Constellation Review
Exelon subsidiary. Large national brand with Texas fixed and renewable plans.
★ 3.9 · 2,010 reviews · HQ: Baltimore, MD · Est. 1999 · 4 plans
Our verdict
3.5/5
Constellation is the stable, mid-tier-priced option with a regulatory record to back it up — PUCT complaints run less than half the industry average, fixed rates sit roughly 9% below the Texas mean, and after closing the Calpine deal in early 2026 it's the largest competitive supplier in the country. The drag is the same bill-credit complexity that trips up so many Texas plans: the Usage Bill Credit only triggers at 1,000 kWh, so light users never see the advertised rate. A solid pick for steady mid-to-high-usage homes that want stability and bundled extras like HVAC protection.
How we evaluated
We checked Constellation's current EFLs and the Usage Bill Credit thresholds, its PUCT complaint rate (~half the industry average), BBB file (A+, accredited), and the Google/aggregator review spread, then cross-checked rates against live market pricing. We don't take payment for placement — checkout passes through at the same rate you'd get going direct.
By the numbers
Constellation at a glance.
Lowest rate
13.80¢
Average rate
14.65¢
Plans
4
Rating
★ 3.9
What stands out
Constellation highlights.
Standard fixed-rate residential plans across major Texas TDUs.
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 Viewing now - Rating
- ★ 3.9
- Lowest
- 13.80¢
- Average
- 14.65¢
- Plans
- 4
Best for Reliability
Every plan, ranked honestly
Constellation plans.
Constellation
12Mo Usage Bill Credit + A/C Protection for 2 Units and HVAC Monitoring
Rate
14.40¢
Term
12 Months
$1000 kWh
$144
Rates as of June 2026 · verify on the EFL
- ✓ 30% green
Constellation
12 Month GREEN (No Min Usage Fee)
Rate
14.50¢
Term
12 Months
$1000 kWh
$145
Rates as of June 2026 · verify on the EFL
- ✓ 30% green
Constellation
12 Month GREEN Usage Bill Credit
Rate
15.90¢
Term
12 Months
$1000 kWh
$159
Rates as of June 2026 · verify on the EFL
- ✓ 30% green
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
Pick a plan
Compare the 4 Constellation plans by rate, term length, and renewable %. Confirm the EFL matches what you saw.
- 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
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
4
Avg rate
14.65¢
at 1,000 kWh
Constellation FAQ
Common questions about Constellation.
What does Constellation charge per kWh?
+
Constellation plans range from 13.80¢/kWh on the cheapest fixed plan to roughly 15.90¢/kWh on its premium products. The average across all 4 plans is 14.65¢/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.
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Ready to enroll with Constellation?
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How enrollment works
You pick the plan here. Enrollment finishes on our secure checkout — same rate, no markup. If you'd rather skip the ZIP entry, Live Link pulls your real usage from Smart Meter Texas in about 30 seconds. Same plans, same checkout, less typing.