6/17/2023 0 Comments Kwh to watts![]() In small-scale solar and electrical systems, it's sometimes easier to express energy consumption in terms of watt hours (Wh) rather than kilowatt hours. So to find the total kilowatt hour consumption of your new appliance, simply convert watts to kilowatt hours: (660 W × 730 hrs) ÷ 1,000 = 481.8 kWh How to Convert Watt Hours to Watts (Wh to W) ![]() Over the course of one year, this is about 730 hours (365 days × 2 hours per day). Simply multiply volts and amps together to find watts: 120 volts × 5.5 amps = 660 wattsĮven though your water cooler is plugged in year-round, let's assume it only uses this amount of electricity to actively cool your water for about 2 hours maximum per day. In this case, we aren't given the watts rating, but we do know that our water cooler is rated for 5.5 amps (A) at 120 volts (V). This is typically found on a sticker on the back of the appliance. Look at the electrical specifications for your water cooler to find the amount of watts it uses. You want to know how many kilowatt hours this appliance consumes over the course of one year, to see if your solar panels can handle the extra energy consumption. In this example, let's assume you want to add a freestanding water cooler to your home. To calculate kilowatt hours, multiply watts by hours then divide by 1,000.įormula: kilowatt hours = (watts × hours) ÷ 1,000Ībbreviated: kWh = (W × hrs) ÷ 1,000 Example You can also convert watts to kilowatt hours. How to Convert Watts to Kilowatt Hours (W to kWh) This number can be helpful for reducing energy usage or designing a DIY solar power system. Converting those extra kilowatt hours to watts will give you an idea of other appliances or devices you could power, without having to add more panels to your home.įinally, converting kilowatt hours to watts gives you an idea of your average power consumption in watts over a certain period of time. Second, you may find that your solar panel system can produce more electricity than you currently need or use. First, knowing your monthly energy consumption in kilowatt hours over a typical year allows you to calculate the total number of solar panels you would need to power your home, as in the previous example. Why Convert Kilowatt Hours to Watts?Ĭonverting kilowatt hours to watts is important for a few reasons, especially when considering solar for your home. ![]() The total number of watts you would need is: (1,000 kWh ÷ 217 hrs) × 1,000 = 4,608.29 Wĭividing this peak usage by the rating for each panel gives us the total number of panels you would need: 4,608.29 W ÷ (300 W/panel) = 15.36 panelsīased on this estimate, you'd need about 16 panels to completely solar power your home during your highest-usage month. So the total number of hours your solar panels could generate electricity during the month is 7 × 31 = 217 hours. Let's also assume that your roof gets full sun for an average of 7 hours each day during July. Let's assume it's July, with a usage of 1,000 kWh. Let's say the panels you are looking at purchasing are rated at 300W each.įirst, find the highest-usage month out of the year. You want to know how many panels you would need on your roof to completely solar power your home. In this example, you know your monthly electrical energy usage in kilowatt hours over the course of a year. Let's look at an example many homeowners face when considering adding solar panels to their home. To calculate watts from kilowatt hours, divide kilowatt hours by the number of hours and then multiply by 1,000.įormula: watts = (kilowatt hours ÷ hours) × 1,000Ībbreviated: W = (kWh ÷ hrs) × 1,000 Example So in order to convert kilowatt hours to watts, you must know how many hours it took to generate (or use) the measured amount of kilowatt hours. ![]() Kilowatt hours is a measurement of this same electrical energy, but over a period of time (measured in hours). Watts is a measurement of power, which you can think of simply as an instantaneous amount of electrical energy. How to Convert Kilowatt Hours to Watts (kWh to W)īefore we go into how to convert kilowatt hours to watts, it is important to understand what these two units actually measure. Note that one month is assumed to be 30 days long. Here is a chart converting kilowatt hours to watts for a few common time periods. Or would you rather convert watts to kilowatt hours? Kilowatt Hours to Watts Conversion Chart Conversion formula: W = (kWh ÷ hrs) × 1000
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