Don W.
Add-on bonuses are always good
Add-on bonuses are always good. This one is actually fun. Thanks!

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Constellation (constellation.com) has 362 customer reviews on Five Star Index, with an average rating of 4.2 out of 5.
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Don W.
Add-on bonuses are always good. This one is actually fun. Thanks!
Antony
Excellent customer service
Gustavo G.
Great experience with Constellation
Diane
It was relatively easy to renew. No issues otherwise.
Marylynn G.
Because I wanted a fixed rate and talking with them and letting them explain their company to me, I was confident I was going with the right place.
Lamoya L.
What a great way to keep me interested in my energy usage & account. Rewarding me for staying on top of it is brilliant!
suresh B.
good service
Terri R.
Service has been great - its unfortunate that it was only 5 month contract. It will then go up significantly. Easy to reach customer service. Wish i had a longer contract.