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    STEP 1.) CHOOSE YOUR POWER COMPANY

    DukeTECOOther

    Take note of the highest, middle, and the lowest daily kWh usuage. Or if you have 12 months of bills to view you can take the highest, middle, and lowest monthly power bills and use those instead.

    Duke Power Bill

    Take note of the highest, middle, and the lowest daily kWh usuage. Or if you have 12 months of bills to view you can take the highest, middle, and lowest monthly power bills and use those instead.

    Duke Power Bill

    Locate the daily kWh usuage monthly average for the year. Take note of the highest, middle, and the lowest daily kWh usuage. Or if you have 12 months of bills to view you can take the highest, middle, and lowest monthly power bills and use those instead. If your power bill does not contain this information, your power provider will be happy to supply it to you.

    STEP 2.) CALCULATE YOUR AVERAGE

    Calculate by kWh Usage or by Monthly Cost?

    Daily kWh UsageMonthly Cost







    STEP 3.) CHOOSE YOUR SYSTEM SIZE

    Match your Annual Kilowatt usage or Annual Power Cost to the system size that best suits your needs below:

    8 kW SOLAR SYSTEM
    ESTIMATED PRODUCTION*
    12,000 kWh year / 1,000 kWh month
    ESTIMATED SAVINGS*
    $1,555 year / $129.58 month
    11.59 kW SOLAR SYSTEM
    ESTIMATED PRODUCTION*
    17,458 kWh year / 1,455 kWh month
    ESTIMATED SAVINGS*
    $2,254 year / $187.83 month
    15 kW SOLAR SYSTEM
    ESTIMATED PRODUCTION*
    22,594 kWh year / 1,883 kWh month
    ESTIMATED SAVINGS*
    $2,916 year / $243.00 month
    18 kW SOLAR SYSTEM
    ESTIMATED PRODUCTION*
    27,116 kWh year / 2,260 kWh month
    ESTIMATED SAVINGS*
    $3,497 year / $291.42 month
    25 kW SOLAR SYSTEM
    ESTIMATED PRODUCTION*
    37,657 kWh year / 3,138 kWh month
    ESTIMATED SAVINGS*
    $4,859 year / $404.92 month
    SOLAR SYSTEM SIZE ESTIMATED PRODUCTION* ESTIMATED SAVINGS**
    8 kW 12,000 kWh yr / 1,000 kWh mon $1,555 yr / $129.58 mon
    11.59 kW (TOP SELLER) 17,458 kWh yr / 1,455 kWh mon $2,254 yr / $187.83 mon
    15 kW 22,594 kWh yr / 1,883 kWh mon $2,916 yr / $243.00 mon
    18 kW 27,116 kWh yr / 2,260 kWh mon $3,497 yr / $291.42 mon
    25 kW 37,657 kWh yr / 3,138 kWh mon $4,859 yr / $404.92 mon