You are confusing the units.
To obtain amps from watts a voltage must be given.
Use the formula: energy = power x time If energy is in watts and time is in hours, power will be in watt-hours. Divide that by 1000 to get kWh. Alternately, you can convert watt to kilowatt before doing the multiplication - in that case, kilowatt x hours = kilowatt-hours.
1 kilowatt is equal to 1,000 watts, so a 100 watt bulb uses .1 kilowatt. Technically, your home or business meter base measures kilowatt hours, meaning that it measures both the kilowatts and the amount of time. If you turn on 10 100 watt bulbs for 1 second, that would be a kilowatt, but the amount of power use would be insignificant. So... To calculate the kilowatt hours: .1 kilowatts (from above, knowing the energy use of the bulb) Multiplied by 24 hours in a day Multiplied by 30 days... .1(kilowatts) * 24(hours)* 30(hours in a day) = 72 kilowatt hours
No, there are 24 hours a day
If you mean "how many hours are IN one day", then there are 24 hours in a day.
Oh, honey, 500VA is equal to 500 watts. VA stands for volt-amps, which is the apparent power in an electrical circuit, while watts are the real power. So, in this case, they're one and the same. Hope that lights up your day!
The amount of power a standby generator should put out to maintain the avg. US household for a one day is 20 watts system. This a standard amount watts to power you home and today they more selection in watts to power the house more than one day.
To calculate the watts on your electricity bill, you would need to look at the wattage of each electrical device in your home (which can usually be found on the device itself or in the user manual) and the number of hours each device is used per day. Multiply the wattage by the number of hours used per day to calculate the watt-hours for each device, then sum all the watt-hours to get the total watts consumed over a billing cycle.
To obtain amps from watts a voltage must be given.
(600 watts) x (12 hours per day) = 7.2 kilowatt-hours per day
A simple electrical device is a 60 watt light bulb. The bulb is consuming 60 watts of electricity from the moment you turn it on. If you keep that light bulb on for 10 hours the power used is 60 watts x 10 hours = 600 watts of power. Electricity is sold in Kilowatt Hours. A Kilowatt is 1000 watts of power. Depending on the state you live in, it sells for 7 to 18 cents per Kilowatt Hour. So if you leave that light bulb on 10 hours per day for 30 days you will have used up 600 watts x 30 days = 18,000 watts of electricity = 18 Kilowatt Hours. At an average cost of 10 cents per Kilowatt Hour that bulb costs you $1.80 per month to leave on. The formula is watts x time x cost per Kilowatt Hour = cost of use...Answer provided by Gene Evangelist
To calculate the electricity produced in one day, you would need to multiply the power output of the source (in watts) by the number of hours the source is operational in one day (typically 24 hours). This will give you the total energy produced in watt-hours (Wh) for that day. You can convert this to kilowatt-hours (kWh) by dividing by 1,000.
40 W is the power in this case. Whether you have it on a second, or 24 hours, the power will always be 40 W. Now, if it is actually the energy you want to calculate, multiply the power by the time to get the energy. In units: watts x seconds = joules or: kilowatts x hours = kWh
Assuming a standard voltage of 120V, a 150 amp panel can handle a maximum of 18,000 watts per hour (150 amps x 120V). To calculate the daily usage, you would multiply this by 24 hours in a day, resulting in 432,000 watt-hours or 432 kilowatt-hours per day.
The watt is a rate of delivery or use of energy (1 Joule per second) Anything called watts per day means an increase in power per day. (100 watts first day, 200 watts second day, 300 watts third day etc). I'm sure you don't mean that. Direct ("normal" ) sunlight that falls on a square metre is up to about 100 Watts so you'll never get more power from that even with 100% efficiency. Consult the brochures. Probably a few tens of watts per square meter. Energy per day is watts x time-of-sunlight (direct, near 90 degrees). Which will be Joules. 3600x1000 Joules equal 1 Kilowatt-hour, sometimes called "1 unit".
The watt is a unit of power and power is consumed/dissipated instantaneously and continuously. In other words the watts are used now.Power consumed over a period of time is energy. The most common unit of energy used in the electrical field is the kilowatt-hour. But one could also use a unit of watt-year (8.76 kilowatt-hours) or watt-day (0.024 kilowatt-hours) if one wanted to.
A standard 4 foot baseboard heat will consume 1000 watts/1Kilowatt. So if you could calculate how many hours per day/week/month you can multiply the hours by power consumption and getKWh(Kilowatt Hours) per month.