# How much does it cost to run a small air compressor each day?

## What is kilowatt-hour?

A kilowatt-hour is a unit of energy: one kilowatt of power for one hour. In terms of SI derived units with special names, it equals 3.6 megajoules (MJ).

## How do we calculate the amount it takes to run the compressor daily?

To calculate the amount it takes to run the compressor daily, we use the formula below:

Formula: A = PtC/1000 ............ Equation 1

## Calculation:

Given: Power of the compressor (P) = 2.9 hp = 2.9 x 746 = 2163.4 W

Time taken (t) = 4.9 hours

Electricity cost (C) = 22 cents per kilowatt-hour

Substitute these values into Equation 1:

A = 2163.4 x 4.9 x 22 / 1000

A = 233.21 cents

## Answer:

It costs 233.21 cents to run the small air compressor each day.

The small air compressor operates on a 2.9 hp electric motor for 4.9 hours a day. With an electricity cost of 22 cents per kilowatt-hour, the calculation shows that it costs 233.21 cents to run the compressor daily.

A kilowatt-hour is a standard unit of energy measurement, representing one kilowatt of power used for one hour. This allows for easier calculation of energy usage and cost.

By using the formula A = PtC/1000, where A is the amount, P is the power of the compressor, t is the time, and C is the electricity cost, we can determine the cost of running the small air compressor each day accurately.

Understanding the concept of kilowatt-hour and the calculation involved helps in managing energy consumption efficiently. It is essential to consider these factors to effectively control operational costs.