• Price to Compare

  • The Price to Compare (PTC) is the average cost per kilowatt-hour (kWh) for supply, based on your rate classification. The PTC is a tool for you to use in comparing Delmarva’s Standard Offer Service (SOS) electric supply rates with offers from competing certified electric suppliers. To calculate your potential savings as a consumer in a rate class, determine the difference between our "Price to Compare" and the price of other alternate electricity suppliers participating in the Energy Choice Program by subtracting one from the other. If the supplier’s price is less than the "Price to Compare," you’ll save money. Multiply that difference by your average monthly kilowatt-hour (kWh) usage to determine your average monthly and annual savings.

    1. Look at the "Price to Compare" chart below to determine your correct rate.

    Delaware Residential Price to Compare (cents per kWh)
    Effective June 1, 2016 through May 31, 2017

    Rate Class 9/3/13 6/1/14 8/12/14 6/1/15 9/8/15 10/1/15 6/1/16
    Residential Service (RS) 10.35 10.43 10.75 10.50 10.52 10.49 9.81 
    Residential Heating (RH) 8.14 8.33 8.43 8.38 8.39 8.37 7.59 
    Residential Time of Use Non-demand (RTE) 8.54 8.81 9.01 8.68 8.68 8.66 7.79 

    The above prices are rate schedule averages.

    2. The following is an example using Delmarva Power’s Residential Service (“RS”) rate class.


    "Price to Compare"/kWh
    Prospective Supplier* Price/kWh

    Avg. Monthly kWh Usage

    Avg. Monthly Savings

    Avg. Annual Savings

    − 8.97

    = 0.84 cents/kWh
    × 750 kWh

    = $6.30  
    × 12

    = $75.60

    *An example using a fictional price. Your savings will differ based on the price of the actual supplier you choose.

    3. You can print and use the form below as a calculation worksheet.

    Fill in the information on line 1, 2 and 3 to calculate your monthly and annual savings.

    1. Delmarva Power's Price to Compare kWh   cents/kWh
    2. Suppliers Price to Compare kWh cents/kWh

    Difference kWh = cents/kWh
    3. Average Monthly kWh Usage × kWh

    Average Monthly savings = $  

    Average Annual savings = $