Constellation 12 Month A/C Protect Plus for 2 Units is a 12-month fixed rate electricity plan from Constellation, available in the Oncor and CenterPoint service areas. At 1,000 kWh a month it costs 17.0¢–17.4¢ per kWh all-in — about $170–$174 a month including delivery charges — depending on your utility. It has 24% renewable content and a $150 early termination fee.
Homes that reliably use at least 2,000 kWh a month, which is where the bill credit kicks in.
Bill-credit plan: the headline rate assumes you earn the credit each month. Below the threshold the effective rate rises — at 1,000 kWh it works out to 17.0¢ per kWh versus 15.9¢ at 2,000 kWh.
Constellation will automatically apply a $35 bill credit to your invoice for each billing cycle where usage is at least 1000 kWh. An additional $15 bill credit will be applied when usage reaches 2000 kWh
As of Nov 11, 2026, Constellation 12 Month A/C Protect Plus for 2 Units costs 17.0¢–17.4¢ per kWh all-in at 1,000 kWh a month, including TDU delivery charges and any bill credits. By utility — Oncor: 17.4¢ per kWh (≈$174/mo); CenterPoint: 17.0¢ per kWh (≈$170/mo). At 500 kWh it is 19.1¢ per kWh ($96/mo) and at 2,000 kWh 15.9¢ per kWh ($318/mo) in the CenterPoint area.
Yes. Constellation 12 Month A/C Protect Plus for 2 Units is a fixed-rate plan with a 12-month term: the energy charge stays the same for the full contract. Your bill still changes with how much electricity you use, and the regulated TDU delivery charges can be adjusted by the utility.
The early termination fee is $150 if you leave before the 12-month term ends. Under Texas rules you do not owe the fee if you cancel because you are moving.
Constellation 12 Month A/C Protect Plus for 2 Units is 24% renewable, which is the share of your usage matched with renewable energy credits.
Constellation 12 Month A/C Protect Plus for 2 Units is available to homes served by Oncor and CenterPoint — that covers Dallas–Fort Worth and much of North, Central and West Texas, Houston and the surrounding Gulf Coast. Enter your ZIP code to confirm it is offered at your address.
At 1,000 kWh a month Constellation 12 Month A/C Protect Plus for 2 Units ranks #265 of 307 residential plans in the Oncor area by all-in cost, so it costs 7.4¢ per kWh more than the cheapest plan there and more than the area average of 14.7¢. Because it is a bill-credit plan, make sure your usage clears the credit threshold most months, otherwise the effective rate is higher. Rankings are recalculated daily.
Choose your utility in the table above and click Enroll. You will need your service address, a move-in or switch date and the account holder's details; enrollment takes about five minutes online and a switch usually completes within one to seven days. There is no interruption to your power.
Rates and rankings are recalculated daily from provider Electricity Facts Labels via PowerHQ. All-in prices include TDU delivery charges, base fees and bill credits averaged over a typical year; your actual bill depends on your usage. GridHacker may earn a commission when you enroll through our links — this never affects how plans are ranked.
