The volt to watt conversion calculator is one of the most commonly used conversions of physical quantities in many electrical systems, including solar panel systems. For the growing popularity of solar panel systems, its high payback, high automation, and low emission power generation has attracted a variety of industries that continue to experiment with and understand it. For home users, it is important to learn about the conversion of physical quantities to better understand and optimize your solar panel system. In this article, we will introduce you to volts, watts, and the formula for converting volts to watts in DC and AC circuits.

1. What is a volt (v)?

The volt is a unit of voltage. It is often used to describe the amount of “force” a current has when passing through a section of a circuit. When used as a unit of voltage, the greater the value of the volt, the greater the voltage in the circuit and the greater the force of the current, and the smaller the value of the volt, the lower the voltage in the circuit and the lower the force of the current.

In addition to the volt as a unit of voltage, the microscopic point of view, it is a unit of measurement of a unit of electrons in the electric field due to the different TV produced by the unit of energy difference, the size of the value is equal to a unit of positive charge due to the electric field force from one end of the circuit to move to the other end of the amount of work to be done, therefore, the volt is also the unit of electric potential energy. Charge in the zero potential energy plane began to move, the electric field force in the process of movement to do positive work, the potential energy decreases, the volt value is negative, the electric field force in the process of movement to do negative work, the potential energy increases, the volt value is positive.

2. What is a watt (w)?

Watt is the unit of power, but also one of the most widely used units of electrical physical quantities, usually used to describe an electrical appliance in the completion of some kind of work in the amount of energy consumed. The more energy it takes to do the job, the greater the wattage, and conversely, the less energy it takes to do the job, the smaller the wattage.

It can also be used to describe the power generated by a power generating device, for example, the wattage of a solar panel system refers to the power generated by a solar panel under ideal conditions.

3. What is an ampere (A)?

An ampere is a unit of electric current. From a microscopic point of view, it indicates how much charge passes through a given section of a circuit in an instant, i.e., the magnitude of the rate at which current passes through a given section.

4. How do you realize from volts to watts?

After learning about the units of measurement of the physical quantities mentioned above, you will be introduced to the formula for converting from volts to watts. However, since volts and watts do not belong to the same physical unit of measurement, in order to convert them, we need to introduce an intermediate physical unit of measurement, the ampere. The conversion formula is as follows:

P (w) = V (v) x I (A)

P in the above formula is the power of the electrical device, V is the circuit voltage, and I is the circuit current, which is:

Watts = Volts x Amps

In order for you to better understand and grasp the above conversion formula, the following is an example of a home solar panel system. In the case of various types of household appliances kept connected in parallel, the total current of the household circuit is 20A, and it is known that the supply voltage of the household electricity is 110v, then how many watts are required at least for the solar panel system to ensure the normal supply of household energy.

P (w) = 20A x 110v = 2200w

I am sure that after you have studied the above conversion formula, you have gained an initial understanding of the conversion from volts to watts. In fact, the above conversion formula is only applicable to DC circuits, for AC circuits, which are more common in practical applications, we need to use a more complicated formula for conversion.

First, we need to know that AC circuits are divided into single-phase AC and three-phase AC.

Single-phase AC

Single-phase alternating current (AC) refers to circuits that have only a single AC voltage, and where both the current and voltage generated in the circuit vary at a specific frequency over time.

For single-phase alternating current, the formula for converting volts to watts is:

P (w) = PF × I (A) × V (v)

P in the above formula refers to the power generated by the electrical system, V refers to the RMS voltage, i.e., the value of the circuit and the DC voltage that can produce the same heating effect, the main reason for its existence is because the voltage in AC circuits varies over time, and the calculation of the RMS value can be convenient to compute. I refers to the current of the circuit, and the PF is the power factor of a single-phase AC circuit, i.e., a value used to measure the phase difference between the voltage and the current in the circuit. PF is the power factor of a single-phase AC circuit, which is a value used to measure the phase difference between the voltage and current in a circuit. The larger the phase difference between the voltage and current in the circuit, the lower the power factor, the lower the efficiency of the circuit, and the less stable the overall system.