Kilowatt hours, are a measurement of electrical usage, multiplied by whatever the utility company rates are.  Understanding this concept will go a long way to help you know where your energy dollars are going as well as provide a foundation for any future savings due to conservation.

Power consumption is measured in watts, volts multiplied by amperage equals watts which is usage.  The larger the appliance or duration of use, both effect power consumption.

Another way of looking at this, a 10KW solar array on average, on the east coast produces about 80 Kilowatt hours of energy per day.  The data provided on this page should help to clarify normal electrical usage.
The readings on your electrical meter are a direct result of your usage.  Understanding actual consumption rates of different appliances will go a long way in helping you to conserve energy and in turn reduce your energy cost.
Electrical Load

(9)   100 watt light bulb
(1)   500 watt refrigerator
(1) 4500 watt water heater
(1) 5500 watt range
(1) 1500 watt washer
(1) 4500 watt dryer
(1) 2000 watt well pump
(2) 4800 watt air conditioners
(1)   800 watt dishwasher
(9)     50 watt plug in adapter
Hours of Use

10 hours
12 hours
5 hours
1 hour
4 hours
4 hours
6 hours
8 hours
1 hour
24 hours

Kilowatt Hours

9 kWh
6 kWh
22.5 kWh
5.5 kWh
6 kWh
18 kWh
12 kWh
77 kWh
1.2 kWh

158 kWh
Average Cost


The above example of  daily consumption rates multiplied by an  9 cents per Kilowatt hour expense rate demonstrates energy cost for this example.  At $14.22 a day, a monthly energy bill in the amount of $426.00 would be the norm.  This may not be typical for your particular situation and is only used to demostrate what your electrical usage cost you!
E & W Electrical, LLC
515 Meadowland Drive
Suite 100
Hillsborough, NC  27278
919-245-0200   (office)
919-245-0202   (facsimile)
888-919-5210  (toll free)
copyright 2010 E & W Electrical ** All rights reserved

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