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UNDERSTANDING YOUR ELECTRIC BILL <br /> <br />three components: <br />Customer Charge Power Cost Adjustment (PCA) Electric Usage <br /> <br />(For example: 500 kWh x $.1215 = $60.75) <br />100 <br />watt <br /> or <br />x 1000 watt hours 1 kWh <br />= <br />10 hours <br />is equal to 1,000 <br />WHAT’S A WATT? CLUES TO HOW YOU USE <br /> <br /> <br />Amps <br />Amps x Volts = Watts <br />Volts <br />which means <br />Watts are the product of multiplying amps and volts, <br />W÷A=V and W÷V=A <br />EXAMPLE 1: EXAMPLE 2: <br />A light uses 100 watts and is left on for 15 hours. <br />A space heater uses 1,500 watts and is used 3 hours per night, <br />How many kWh are used and at what cost? every night in December. How many kWh are used and at what cost? <br />• kWh used • kWh used <br />10015÷ 1,000= 1.5 1,500331÷ 1,000 = 139.5 <br />• Your cost • Your cost <br /> 1.5$.1215 = $.18 139.5$.1215 = $16.94 <br />| <br />YOUR GUIDE TO HOME ENERGY USE 4 <br />116 <br />