Pennsylvania-licensed electricity supplier
Constellation Energy plans, rates & reviews
Constellation Energy is a subsidiary of Exelon and an electricity supplier serving residential customers in PA. This is an independent comparison, not Constellation Energy's official site.
Affiliate disclosure: We may earn a commission if you sign up through our links. Learn more
Updated June 2026 • PA PUC License: A-110036
Constellation Energy at a glance
A-110036
PA PUC License
Exelon
Parent company
Electric Generator Supplier
Service type
About Constellation Energy
Constellation Energy is a licensed electricity supplier serving residential and commercial customers in PA. The company operates as part of Exelon.
In deregulated markets, Constellation Energy competes with other suppliers to provide the generation portion of your electricity bill. Your local utility continues to handle delivery, maintenance, and outage response regardless of which supplier you choose.
Visit constellation.com to learn more about their current plans and offers.
Plan types Constellation Energy offers in Pennsylvania
Most PA residential electricity suppliers offer these common plan structures:
Fixed-rate plans
Locked rate for a set term (typically 6, 12, or 24 months). Protects against rate increases but may include early termination fees.
Variable-rate plans
Rate changes month-to-month based on market conditions. No contract lock-in, but rates can increase unexpectedly.
Green energy plans
100% renewable energy credits (RECs) offset your usage. Rates may be slightly higher than standard plans.
Blended plans
Mix of renewable and standard generation. Often 25%, 50%, or 75% renewable at intermediate price points.
Constellation Energy's specific current offers and rates are not displayed here. Visit their website or use our ZIP submit to see current PA plans.
Service area in Pennsylvania
Constellation Energy serves customers in the following PA utility territories:
This covers most of Pennsylvania's population. Enter your ZIP code to confirm service availability at your specific address.
How Constellation Energy compares to other PA suppliers
Pennsylvania has 100+ PUC-licensed residential suppliers. Here's how Constellation Energy fits in the landscape:
How to enroll with Constellation Energy
Compare rates
Visit constellation.com or use our ZIP submit to see what plans are currently offered for your area.
Check your Price to Compare
Compare Constellation Energy's rate against your utility's default service rate. This is listed on your bill as "Price to Compare."
Enroll directly
Sign up with Constellation Energy. Your distribution utility continues delivery. Billing arrangements vary by supplier.
Constellation Energy also enrolls customers through PA Power Switch and licensed brokers.
Frequently asked questions
- Is Constellation Energy a licensed PA electricity supplier?
- Yes. Constellation Energy is licensed by the Pennsylvania Public Utility Commission under license number A-110036.
- Where does Constellation Energy operate?
- Constellation Energy serves customers in PA.
- Will my utility change if I sign up with Constellation Energy?
- No. Your distribution utility continues to deliver your electricity. Constellation Energy supplies the generation portion only. You'll see both charges on your utility bill.
- How can I cancel my Constellation Energy contract?
- Contract terms vary by plan. Fixed-rate plans typically have early termination fees. Review your contract or contact Constellation Energy directly for cancellation procedures.
- Does Constellation Energy offer renewable energy plans?
- Most major suppliers offer some renewable energy plans. Visit constellation.com for current options and pricing.
Related guides
Pennsylvania Price to Compare Explained
What the PTC is and how to use it when shopping
Fixed vs Variable Rate Plans
Which plan type makes sense for your household
How to Switch Suppliers in PA
Complete guide to switching providers in Pennsylvania
Green Energy Plans in PA
What 100% renewable plans really mean
Ready to see what Constellation Energy offers in your area?
Enter your ZIP code to see available plans and rates.
Free comparison • PUC-licensed suppliers • EIA-cited data