Constellation is an Exelon company and energy provider headquartered in Baltimore, Maryland.
The company was founded in 1999 and serves residential customers in 10 states: Texas, Illinois, Ohio, Pennsylvania, Maryland, Delaware, New Jersey, Connecticut, Massachusetts, and Washington, DC. Constellation is one of the largest electricity providers in the US.
Constellation serves nearly two million residential, public sector, and business customers. In addition to traditional energy sources, the company provides renewable energy options for its customers.
Constellation is constantly changing with the energy landscape to offer cleaner energy options. The company also works with organizations like Habitat for Humanity to develop affordable, renewable solutions for projects across America.
A+
Accredited Since
Years in Business
25
Enter your address and WattBuy's proprietary energy estimation model will find the best electricity options for your home
Rates are based on an estimated usage of 1,150 kWh per month.Update usage.
Plan | Rate Per kWh | Plan Length | ||
---|---|---|---|---|
12 Month Usage Bill Credit cheapestcheapest 12 months | 15.3¢ | 12 months | Choose Plan | |
12 Month (No Min Usage Fee) | 16.4¢ | 12 months | Choose Plan | |
12 Month GREEN (No Min Usage Fee) cheapest renewable | 16.8¢ | 12 months | Choose Plan | |
4 Month | 12.6¢ | 4 months | ||
12 Month Usage Bill Credit | 15.3¢ | 12 months |
Rates are based on an estimated usage of 1,150 kWh per month.Update usage.
Plan | Rate Per kWh | Plan Length | ||
---|---|---|---|---|
6 Month Home Power Plan | 6.8¢ | 6 months | Choose Plan | |
18 Month Home Power Plan cheapest 13+ months | 8¢ | 18 months | Choose Plan | |
36 Month Home Power Plan | 8.2¢ | 36 months | Choose Plan | |
18 Month Plan | 8¢ | 18 months | ||
36 Month Plan | 8.2¢ | 36 months |
Rates are based on an estimated usage of 1,150 kWh per month.Update usage.
Plan | Rate Per kWh | Plan Length | ||
---|---|---|---|---|
12 Month Usage Bill Credit | 16.3¢ | 12 months | Choose Plan | |
12 Month (No Min Usage Fee) | 17.5¢ | 12 months | Choose Plan | |
12 Month GREEN (No Min Usage Fee) | 17.9¢ | 12 months | Choose Plan | |
4 Month | 13¢ | 4 months | ||
12 Month Usage Bill Credit | 16.3¢ | 12 months |
Rates are based on an estimated usage of 1,150 kWh per month.Update usage.
Plan | Rate Per kWh | Plan Length | ||
---|---|---|---|---|
6 Month Home Power Plan | 6.8¢ | 6 months | Choose Plan | |
18 Month Home Power Plan | 8¢ | 18 months | Choose Plan | |
36 Month Home Power Plan | 8.2¢ | 36 months | Choose Plan |
The price to compare for AES Ohio is 10.81¢. Rates are based on an estimated usage of 1,150 kWh per month.Update usage.
Plan | Rate Per kWh | Plan Length | ||
---|---|---|---|---|
36 Month Plan | 8.5¢ | 36 months | ||
18 Month Plan | 8.5¢ | 18 months |
The price to compare for Ameren is 7.8¢. Rates are based on an estimated usage of 1,150 kWh per month.Update usage.
Plan | Rate Per kWh | Plan Length | ||
---|---|---|---|---|
36 Month Home Power Plan | 10.6¢ | 36 months | Choose Plan | |
12 Month Home Power Plan | 10.7¢ | 12 months | Choose Plan | |
12 Month Green Home Power Plan | 10.8¢ | 12 months | Choose Plan | |
6 Month Home Power Plan | 10.8¢ | 6 months | Choose Plan | |
36 Month Plan | 10.6¢ | 36 months |
The price to compare for Atlantic City Electric is 11.71¢. Rates are based on an estimated usage of 1,150 kWh per month.Update usage.
Plan | Rate Per kWh | Plan Length | ||
---|---|---|---|---|
18 Month Home Power Plan | 13¢ | 18 months | Choose Plan | |
36 Month Home Power Plan | 13.3¢ | 36 months | Choose Plan |
The price to compare for Baltimore Gas and Electric is 9.98¢. Rates are based on an estimated usage of 1,150 kWh per month.Update usage.
Plan | Rate Per kWh | Plan Length | ||
---|---|---|---|---|
12 Month Plan | 10.5¢ | 12 months | ||
24 Month Plan | 10.8¢ | 24 months | ||
1 Month Plan | 12.5¢ | 1 months |
Rates are based on an estimated usage of 1,150 kWh per month.Update usage.
Plan | Rate Per kWh | Plan Length | ||
---|---|---|---|---|
12 Month Usage Bill Credit | 16.3¢ | 12 months | Choose Plan | |
12Mo Usage Bill Credit + A/C Protection for 2 Units and HVAC Monitoring | 16.3¢ | 12 months | Choose Plan | |
12 Month (No Min Usage Fee) | 17.5¢ | 12 months | Choose Plan | |
12 Month GREEN (No Min Usage Fee) most popular | 17.8¢ | 12 months | Choose Plan | |
4 Month | 13.3¢ | 4 months |
The price to compare for Central Hudson is 7.97¢. Rates are based on an estimated usage of 1,150 kWh per month.Update usage.
Plan | Rate Per kWh | Plan Length | ||
---|---|---|---|---|
12 Month Plan | 11¢ | 12 months |
The price to compare for ComEd is 6.87¢. Rates are based on an estimated usage of 1,150 kWh per month.Update usage.
Plan | Rate Per kWh | Plan Length | ||
---|---|---|---|---|
36 Month Home Power Plan cheapestcheapest 13+ months | 8¢ | 36 months | Choose Plan | |
12 Month Home Power Plan cheapest 12 months | 8.2¢ | 12 months | Choose Plan | |
12 Month Green Home Power Plan cheapest renewable | 8.5¢ | 12 months | Choose Plan | |
6 Month Home Power Plan cheapest <12 months | 8.5¢ | 6 months | Choose Plan | |
36 Month Plan | 8¢ | 36 months |
Rates are based on an estimated usage of 1,150 kWh per month.Update usage.
Plan | Rate Per kWh | Plan Length | ||
---|---|---|---|---|
12 Month Plan | 13.3¢ | 12 months | ||
12 Month Plan | 13.3¢ | 12 months | ||
12 Month Plan | 19¢ | 12 months |
The price to compare for Delmarva Power and Light - Maryland is 10.17¢. Rates are based on an estimated usage of 1,150 kWh per month.Update usage.
Plan | Rate Per kWh | Plan Length | ||
---|---|---|---|---|
12 Month Plan | 10.6¢ | 12 months | ||
24 Month Plan | 10.7¢ | 24 months |
Rates are based on an estimated usage of 1,150 kWh per month.Update usage.
Plan | Rate Per kWh | Plan Length | ||
---|---|---|---|---|
9 Month Home Power Plan cheapestcheapest <12 months | 6.4¢ | 9 months | Choose Plan | |
36 Month Home Power Plan | 8.2¢ | 36 months | Choose Plan | |
18 Month Plan | 8¢ | 18 months | ||
36 Month Plan | 8.2¢ | 36 months |
The price to compare for Duquesne is 11.45¢. Rates are based on an estimated usage of 1,150 kWh per month.Update usage.
Plan | Rate Per kWh | Plan Length | ||
---|---|---|---|---|
9 Month Home Power Plan | 10.2¢ | 9 months | Choose Plan | |
12 Month Home Power Plan | 10.6¢ | 12 months | Choose Plan | |
24 Month Home Power Plan | 10.6¢ | 18 months | Choose Plan | |
36 Month Electricity Plan | 11¢ | 36 months | Choose Plan | |
24 Month Green Home Power Plan | 11.1¢ | 24 months | Choose Plan |
The price to compare for Eversource Energy - Connecticut is 13.82¢. Rates are based on an estimated usage of 1,150 kWh per month.Update usage.
Plan | Rate Per kWh | Plan Length | ||
---|---|---|---|---|
36 Month Plan | 12.5¢ | 36 months | ||
24 Month Plan | 13¢ | 24 months |
The price to compare for Eversource Energy - Massachusetts is 16.08¢. Rates are based on an estimated usage of 1,150 kWh per month.Update usage.
Plan | Rate Per kWh | Plan Length | ||
---|---|---|---|---|
36 Month Home Power Plan - BE | 15.2¢ | 36 months | Choose Plan | |
36 Month Home Power Plan - NSTAR BECO | 15.2¢ | 36 months | Choose Plan | |
36 Month Home Power Plan - NSTAR CAMB | 15.2¢ | 36 months | Choose Plan | |
36 Month Electricity Plan - BE | 15.7¢ | 36 months | Choose Plan | |
36 Month Electricity Plan - NSTAR BECO | 15.7¢ | 36 months | Choose Plan |
The price to compare for Eversource Energy West is 14.85¢. Rates are based on an estimated usage of 1,150 kWh per month.Update usage.
Plan | Rate Per kWh | Plan Length | ||
---|---|---|---|---|
36 Month Home Power Plan cheapestcheapest 13+ months | 14.3¢ | 36 months | Choose Plan | |
36 Month Electricity Plan | 14.8¢ | 36 months | Choose Plan | |
24 Month Green Home Power Plan cheapest renewable | 15¢ | 24 months | Choose Plan | |
36 Month Plan | 14.3¢ | 36 months |
The price to compare for JCPL is 9.46¢. Rates are based on an estimated usage of 1,150 kWh per month.Update usage.
Plan | Rate Per kWh | Plan Length | ||
---|---|---|---|---|
36 Month Home Power Plan cheapestcheapest 13+ months | 12.2¢ | 36 months | Choose Plan | |
18 Month Home Power Plan | 12.2¢ | 18 months | Choose Plan |
The price to compare for MetEd is 10.24¢. Rates are based on an estimated usage of 1,150 kWh per month.Update usage.
Plan | Rate Per kWh | Plan Length | ||
---|---|---|---|---|
9 Month Home Power Plan | 9.4¢ | 9 months | Choose Plan | |
12 Month Home Power Plan | 9.6¢ | 12 months | Choose Plan | |
24 Month Home Power Plan | 9.7¢ | 24 months | Choose Plan | |
24 Month Green Home Power Plan | 10.3¢ | 24 months | Choose Plan | |
36 Month Electricity Plan | 10.3¢ | 36 months | Choose Plan |
The price to compare for National Grid is 14.12¢. Rates are based on an estimated usage of 1,150 kWh per month.Update usage.
Plan | Rate Per kWh | Plan Length | ||
---|---|---|---|---|
36 Month Home Power Plan | 14.9¢ | 36 months | Choose Plan | |
36 Month Electricity Plan | 15.4¢ | 36 months | Choose Plan | |
24 Month Green Home Power Plan | 15.8¢ | 24 months | Choose Plan | |
36 Month Plan | 14.9¢ | 36 months |
Rates are based on an estimated usage of 1,150 kWh per month.Update usage.
Plan | Rate Per kWh | Plan Length | ||
---|---|---|---|---|
12 Month Plan | 13.8¢ | 12 months |
The price to compare for Ohio Edison is 9.83¢. Rates are based on an estimated usage of 1,150 kWh per month.Update usage.
Plan | Rate Per kWh | Plan Length | ||
---|---|---|---|---|
9 Month Home Power Plan | 6.4¢ | 9 months | Choose Plan | |
18 Month Home Power Plan | 8¢ | 18 months | Choose Plan | |
36 Month Home Power Plan | 8.2¢ | 36 months | Choose Plan | |
18 Month Plan | 8¢ | 18 months | ||
36 Month Plan | 8.2¢ | 36 months |
Rates are based on an estimated usage of 1,150 kWh per month.Update usage.
Plan | Rate Per kWh | Plan Length | ||
---|---|---|---|---|
12 Month Usage Bill Credit | 16.3¢ | 12 months | Choose Plan | |
12Mo Usage Bill Credit + A/C Protection for 2 Units and HVAC Monitoring | 16.3¢ | 12 months | Choose Plan | |
12 Month (No Min Usage Fee) | 17.2¢ | 12 months | Choose Plan | |
12 Month GREEN (No Min Usage Fee) | 17.6¢ | 12 months | Choose Plan | |
4 Month | 12.2¢ | 4 months |
The price to compare for Orange and Rockland - New York is 6.76¢. Rates are based on an estimated usage of 1,150 kWh per month.Update usage.
Plan | Rate Per kWh | Plan Length | ||
---|---|---|---|---|
12 Month Plan | 12.6¢ | 12 months |
The price to compare for Peco Electricity is 9.67¢. Rates are based on an estimated usage of 1,150 kWh per month.Update usage.
Plan | Rate Per kWh | Plan Length | ||
---|---|---|---|---|
9 Month Home Power Plan cheapestcheapest <12 months | 8.6¢ | 9 months | Choose Plan | |
12 Month Home Power Plan | 9.2¢ | 12 months | Choose Plan | |
36 Month Electricity Plan | 9.3¢ | 36 months | Choose Plan | |
24 Month Green Home Power Plan cheapest renewable | 9.4¢ | 24 months | Choose Plan | |
24 Month Plan | 9¢ | 24 months |
The price to compare for Penelec - Pennsylvania is 9.7¢. Rates are based on an estimated usage of 1,150 kWh per month.Update usage.
Plan | Rate Per kWh | Plan Length | ||
---|---|---|---|---|
9 Month Home Power Plan | 9¢ | 9 months | Choose Plan | |
12 Month Home Power Plan | 9.2¢ | 12 months | Choose Plan | |
24 Month Green Home Power Plan | 9.8¢ | 24 months | Choose Plan | |
36 Month Electricity Plan | 9.9¢ | 36 months | Choose Plan | |
12 Month Plan | 9.2¢ | 12 months |
The price to compare for Penn Power is 10.56¢. Rates are based on an estimated usage of 1,150 kWh per month.Update usage.
Plan | Rate Per kWh | Plan Length | ||
---|---|---|---|---|
9 Month Home Power Plan | 9.6¢ | 9 months | Choose Plan | |
12 Month Home Power Plan | 10¢ | 12 months | Choose Plan | |
36 Month Electricity Plan | 10.4¢ | 36 months | Choose Plan | |
24 Month Green Home Power Plan | 10.5¢ | 24 months | Choose Plan | |
12 Month Plan | 10¢ | 12 months |
The price to compare for Pepco - Maryland is 9.44¢. Rates are based on an estimated usage of 1,150 kWh per month.Update usage.
Plan | Rate Per kWh | Plan Length | ||
---|---|---|---|---|
24 Month Plan | 10.2¢ | 24 months | ||
12 Month Plan | 10.2¢ | 12 months |
The price to compare for Potomac Edison - Maryland is 8.63¢. Rates are based on an estimated usage of 1,150 kWh per month.Update usage.
Plan | Rate Per kWh | Plan Length | ||
---|---|---|---|---|
12 Month Plan | 9¢ | 12 months | ||
24 Month Plan | 9¢ | 24 months |
The price to compare for PPL is 12.13¢. Rates are based on an estimated usage of 1,150 kWh per month.Update usage.
Plan | Rate Per kWh | Plan Length | ||
---|---|---|---|---|
6 Month Home Power Plan | 9.7¢ | 6 months | Choose Plan | |
12 Month Home Power Plan | 9.9¢ | 12 months | Choose Plan | |
24 Month Home Power Plan | 10.2¢ | 24 months | Choose Plan | |
24 Month Green Home Power Plan | 10.6¢ | 24 months | Choose Plan | |
36 Month Electricity Plan | 10.6¢ | 36 months | Choose Plan |
The price to compare for PSEG is 8.18¢. Rates are based on an estimated usage of 1,150 kWh per month.Update usage.
Plan | Rate Per kWh | Plan Length | ||
---|---|---|---|---|
36 Month Home Power Plan | 15.2¢ | 36 months | Choose Plan | |
18 Month Home Power Plan | 15.3¢ | 18 months | Choose Plan |
The price to compare for Rochester Gas and Electric is 6.49¢. Rates are based on an estimated usage of 1,150 kWh per month.Update usage.
Plan | Rate Per kWh | Plan Length | ||
---|---|---|---|---|
12 Month Plan | 10¢ | 12 months |
Rates are based on an estimated usage of 1,150 kWh per month.Update usage.
Plan | Rate Per kWh | Plan Length | ||
---|---|---|---|---|
12 Month Usage Bill Credit | 18.2¢ | 12 months | Choose Plan | |
12Mo Usage Bill Credit + A/C Protection for 2 Units and HVAC Monitoring | 18.2¢ | 12 months | Choose Plan | |
12 Month (No Min Usage Fee) | 19.3¢ | 12 months | Choose Plan | |
12 Month GREEN (No Min Usage Fee) | 19.7¢ | 12 months | Choose Plan | |
4 Month | 14.5¢ | 4 months |
The price to compare for The Illuminating Company is 9.61¢. Rates are based on an estimated usage of 1,150 kWh per month.Update usage.
Plan | Rate Per kWh | Plan Length | ||
---|---|---|---|---|
9 Month Home Power Plan | 6.4¢ | 9 months | Choose Plan | |
18 Month Home Power Plan | 8¢ | 18 months | Choose Plan | |
36 Month Home Power Plan | 8.2¢ | 36 months | Choose Plan | |
18 Month Plan | 8¢ | 18 months | ||
36 Month Plan | 8.2¢ | 36 months |
The price to compare for Toledo Edison is 9.67¢. Rates are based on an estimated usage of 1,150 kWh per month.Update usage.
Plan | Rate Per kWh | Plan Length | ||
---|---|---|---|---|
9 Month Home Power Plan | 6.4¢ | 9 months | Choose Plan | |
18 Month Home Power Plan | 8¢ | 18 months | Choose Plan | |
36 Month Home Power Plan | 8.2¢ | 36 months | Choose Plan | |
18 Month Plan | 8¢ | 18 months | ||
36 Month Plan | 8.2¢ | 36 months |
The price to compare for United Illuminating Company is 14.33¢. Rates are based on an estimated usage of 1,150 kWh per month.Update usage.
Plan | Rate Per kWh | Plan Length | ||
---|---|---|---|---|
36 Month Plan | 12.5¢ | 36 months | ||
24 Month Plan | 13¢ | 24 months |
The price to compare for West Penn Power is 9.93¢. Rates are based on an estimated usage of 1,150 kWh per month.Update usage.
Plan | Rate Per kWh | Plan Length | ||
---|---|---|---|---|
9 Month Home Power Plan | 8.6¢ | 9 months | Choose Plan | |
12 Month Home Power Plan cheapest 12 months | 8.8¢ | 12 months | Choose Plan | |
24 Month Home Power Plan cheapest 13+ months | 9¢ | 24 months | Choose Plan | |
24 Month Green Home Power Plan | 9.5¢ | 24 months | Choose Plan | |
36 Month Electricity Plan | 9.8¢ | 36 months | Choose Plan |