OPALCO has teamed up with San Juan County libraries to offer Kill A Watt meters for loan. This device allows users to calculate their electrical expenses by the day, week, month, even an entire year. Simply plug your household item into the device and it will calculate for you the efficiency of that item by displaying the kilowatt per hour. With that information you can determine which items are costing you the most to use and assist in determining which appliance to keep plugged in. Learn more on the Kill A Watt page.