Constellation 24 Month Usage Bill Credit is a 24-month fixed rate electricity plan from Constellation, available in the Oncor, CenterPoint, AEP Texas Central, AEP Texas North and TNMP service areas. At 1,000 kWh a month it costs 14.0¢–17.0¢ per kWh all-in — about $140–$170 a month including delivery charges — depending on your utility. It has no renewable content and a $150 early termination fee.
Larger homes using roughly 1,500–2,500 kWh a month, where the bill credit does the most work; people who want to lock in a price for the long term.
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 14.0¢ per kWh versus 13.1¢ at 2,000 kWh.
ERCOT ONCOR 24 Usage Bill Credit
As of Oct 22, 2026, Constellation 24 Month Usage Bill Credit costs 14.0¢–17.0¢ per kWh all-in at 1,000 kWh a month, including TDU delivery charges and any bill credits. By utility — Oncor: 15.8¢ per kWh (≈$158/mo); CenterPoint: 15.3¢ per kWh (≈$153/mo); AEP Texas Central: 14.0¢ per kWh (≈$140/mo); AEP Texas North: 14.8¢ per kWh (≈$148/mo); TNMP: 17.0¢ per kWh (≈$170/mo). At 500 kWh it is 15.5¢ per kWh ($78/mo) and at 2,000 kWh 13.1¢ per kWh ($261/mo) in the AEP Texas Central area.
Yes. Constellation 24 Month Usage Bill Credit is a fixed-rate plan with a 24-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 24-month term ends. Under Texas rules you do not owe the fee if you cancel because you are moving.
Constellation 24 Month Usage Bill Credit has no renewable content listed on its Electricity Facts Label.
Constellation 24 Month Usage Bill Credit is available to homes served by Oncor, CenterPoint, AEP Texas Central, AEP Texas North and TNMP. Enter your ZIP code to confirm it is offered at your address.
At 1,000 kWh a month Constellation 24 Month Usage Bill Credit ranks #50 of 141 residential plans in the AEP Texas North area by all-in cost, so it costs 2.2¢ per kWh more than the cheapest plan there and less than the area average of 16.1¢. 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.
