You can compare the price per kilowatt-hour (kWh) offered by AEP Energy to the Price to Compare (PTC) on your electricity bill. The PTC is the price you currently pay for electricity generation service from the local utility. Take your Price to Compare and subtract our offer price. This equates to your savings per kWh. Multiply your savings per kWh by your monthly usage (kWh) to determine your savings amount per month.