Calculate how many watts per kilowatt

If you are interested in the question of how many watts are in kilowatts, then you will find the answer after reading this article. What is Watt? This is the unit of measurement of power adopted by the International System for Measurement of Units (SI). She got her name thanks to a mechanic-inventor of Scottish-Irish descent, James Watt, who created a universal steam engine. Until 1882, most calculations used the horsepower as the basic unit of measurement, and only after the invention of the mechanics, a new unit of power, watt, was adopted everywhere (first of all in electrical engineering). In physics, power is the process of energy consumption per unit of time, respectively, one watt will be equal to one joule per second (W = J / s).

How many watts per kilowatt

People are constantly confronted with the concept of electrical power in everyday life. All household appliances in the passport indicate the value of power consumption. Even on an elementary incandescent bulb, on a glass flask, it is written: 40 W, 60 W, 100 W, etc. As for a microwave oven or a washing machine, the value under consideration here will be much higher: 500-1000 W and 2-2, 5 kW respectively. As in other physical quantities, the prefix "kilo" means a multiple of a thousand. That is, the numerical value of the power, measured in kilowatts, must be multiplied by 1000 or transferred to the right by the comma sign for three digits: so we get the value of the electrical power in watts.

Thus, the question of how many watts in kilowatts, we received an unambiguous answer: in one kilowatt, a thousand watts (1 kW = 1000 W). Next, we will consider examples of recording electric power. Here are some examples of how to translate the indicated values:

• 2.5 kW = 2500 W.
• 0.2 kW = 200 W.
• 3,095 kW = 3095 watts.

Sometimes a unit of power, expressed in watts, is required to be converted into kilowatts. We remember how many watts are in kilowatts, so we divide the known value by a thousand. Or, we carry the comma by three digits to the left.

• 2750 W = 2.7 kW.
• 70 W = 0.07 kW.
• 150 W = 0.15 kW.

We will analyze such concept as "kilowatt-hour"

In kilowatt-hours (or in watt-hours), the energy consumption of an electrical appliance is measured in one hour of operation. As an example, take an ordinary computer with a power of 0.65 kW. Suppose he worked one hour. How do you know how much electricity it consumed during this period? Very simply: 0.65 kW multiplied by 1 hour of operation, we obtain 0.65 kWh. A conventional 100-Watt incandescent lamp consumes 100 watts of energy per hour, therefore, it will spend 2,4 kW per day of continuous operation. How many watts in kW, we have already considered above.

The basic household consumers of the electric power

At present, even wealthy people began to think about saving energy - they refuse incandescent lamps and replace them with economical light bulbs or LED lights. When choosing household appliances, the main parameter, which is especially emphasized, is the economy of the devices. In every house or apartment you can find such equipment as a refrigerator, TV, computer, iron, electric kettle. Consider the consumption of electricity by these units. The refrigerator usually works around the clock, its energy consumption rate will be from 0,7 to 1,3 kW per day - everything will depend on the size of the device and the ambient temperature. The computer, provided that it is not turned off, can expend up to 13.5 kW per day. The TV consumes an average of 2.5 kW per 24 hours. However, the biggest "waste" are heating appliances: electric kettles, boilers, electric stoves and others. For example, an electric kettle spends 1-1.2 kW for 20-25 minutes, which can be compared to a refrigerator that runs continuously. And how much electricity do you spend?