Learn How to Calculate Your Household Hydro Consumption

Learn How to Calculate Your Household Hydro Consumption

Households should approach electrical power consumption as if it were a business, dividing their costs into two categories: fixed and variable.Fixed costs represent items that can't be shut off or eliminated, such as the refrigerator, stove, furnace fan,etc. You must be as objective as possible when listing fixed items, as there isn't any room for the personal comforts on this list, only the necessities. This list will become your baseline, or better yet, your power consumption goal for the household. All of the other power-consuming items in your home--lights, computers, hair dryer, etc--are your variable costs. To start reducing your monthly energy bills, focus on this list of items. Once you've created your two lists, you must then calculate the amount of power that each item uses. Start with the fixed costs, as these should be the easiest to calculate because their consumption should be based on a cycle. For example, a fridge may cycle an average of 4 times an hour for 5 minutes, 24 hours a day, 30 days a month, and, therefore, the calculation:

Watt hours = (4 x (5/60)) x 24 x 30 x 700 (running wattage) = 168 000 Wh or 168 KWh

Refer to the table and the calculation samples if you need any further help. For the purpose of filling out your list, do not use or attempt to use the starting wattage. Starting wattage will be explained and used in a different context in a future article.

Don't concern yourself with being 100 per cent accurate with this calculation. You can refine this calculation as you get more familiar with your power usage. Having gone through each item on your fixed' list, you should now have your household's total fixed power usage. Total all of the items and you now have your household power usage GOAL.

NOTE: Resist the temptation to put a dollar figure to this baseline as power costs per KWh can fluctuate, and it could skew your household GOAL. The ultimate goal should be to reduce power consumption and the dollar savings will follow.

Secondly, variable costs can be calculated in exactly the same manner, however, you must determine the amount of time per month that you use each particular item. Once you've tallied up the power usage of each item on your variable' list, you can evaluate your household energy consumption, and either eliminate some of these variable items completely or at least limit their power usage.

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