CleanSky Energy vs Constellation: Texas Electricity Head-to-Head
CleanSky Energy offers 15 plans starting at 12.7c/kWh while Constellation has 25 plans from 10.6c/kWh across all 6 Texas TDU service areas. Here is how their rates, terms, renewable options, and fees compare.
Rate Curve Comparison
Lowest average rate across all usage levels (10.7c/kWh vs 12.7c/kWh). Consistent pricing regardless of how much electricity you use.
Shows the best available all-in rate from each provider at 500, 1,000, and 2,000 kWh usage levels. The best plan may differ at each tier.
Best Plan Per Term Length
| Term | CleanSky Energy Best Plan | Rate | Fee | Constellation Best Plan | Rate | Fee | Winner |
|---|---|---|---|---|---|---|---|
| 6 Month | N/A | N/A | N/A | Simple Switch 3EFL | 10.6c | $50 flat | Constellation |
| 12 Month | Embrace Green 12 - New Customer SpecialEFL | 12.7c | $75 flat | 12 Month Usage Bill Credit EFL | 11.2c | $150 flat | Constellation |
| 24 Month | Embrace Green 24 - New Customer SpecialEFL | 13.3c | $150 flat | 14 Month Usage Bill CreditEFL | 11.8c | $150 flat | Constellation |
| 36 Month | Embrace Green 36 - New Customer SpecialEFL | 13.2c | $225 flat | 36 Month Usage Bill CreditEFL | 12.8c | $150 flat | Constellation |
Plan Type Breakdown
CleanSky Energy
Constellation
Cancellation Fee Comparison
CleanSky Energy
Constellation
Renewable Energy Deep Dive
CleanSky Energy
Constellation
Full Plan Tables
Which Provider Fits You Better?
Looking for the Lowest Rate?
Better fit: Constellation
Constellation has the lower advertised rate at 10.6c/kWh (1,000 kWh usage), compared to 12.7c/kWh.
Want a Long-Term Price Lock?
Better fit: Constellation
Constellation has the better option for locking in a rate on a 24-month or longer contract.
Going Green?
Better fit: CleanSky Energy
CleanSky Energy offers more 100% renewable plans (15 vs 0).
Need Flexibility?
Better fit: Constellation
Constellation has more flexible cancellation terms, including short-term or lower-commitment plans.
These rates are based on 1,000 kWh average usage. Your actual savings depend on YOUR usage pattern.
WattTrim analyzes your real Smart Meter data to find the plan that saves you the most - across all providers, not just these two.
Always Free
Trim My BillFrequently Asked Questions
Is CleanSky Energy cheaper than Constellation?
Based on current plan data, Constellation has the lower advertised rate, offering plans starting at 10.6c/kWh compared to 12.7c/kWh from the other provider at 1,000 kWh of usage. Your actual cost depends on your usage pattern and the specific plan you choose.
Does CleanSky Energy offer renewable energy plans compared to Constellation?
CleanSky Energy offers 15 plans (100% of its lineup) at 100% renewable energy, while Constellation offers 0 plans (0% of its lineup).
What are the cancellation fees for CleanSky Energy vs Constellation?
CleanSky Energy charges $75 - $275 on its tracked plans, while Constellation charges $50 - $150 on its tracked plans. Always review the Electricity Facts Label (EFL) for the exact fee structure before enrolling.
Which provider has more plan options in Texas, CleanSky Energy or Constellation?
Constellation currently offers more plan options across the Texas TDU areas we track, with 25 plans compared to 15.
Can I switch from CleanSky Energy to Constellation?
Yes. Texas is a deregulated electricity market, so you can switch retail electric providers at any time. If you are still under contract with your current provider, check for an early termination fee before switching. New service with either provider typically starts within 1 to 5 business days of enrollment.