Enter the total power generated in watts and the total cost into the calculator to determine the cost per watt.

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## Cost Per Watt Formula

The following equation is used to calculate the Cost Per Watt.

CPW = TC / TW

- Where CPW is the cost per wattage ($/watts)
- TC is the total cost ($)
- TW is the total watts

To calculate the cost per watt, divide the cost of the power by the total wattage of the power.

## What is Cost Per Watt?

Definition:

Cost per watt is a metric used to describe the unit cost of one watt of power. It’s most often used in electronics or when looking at devices like solar panels. It’s used to compare the cost of the solar array by the power the solar panels generate.

## How to Calculate Cost Per Watt?

Example Problem:

The following example outlines the steps and information needed to calculate Cost Per Watt.

First, determine the total power generation. In this example, the solar panels generate 1000 watts of power.

Next, determine the total cost. In this case, the solar panels cost $10,000.00.

Finally, calculate the cost per watt using the formula above:

CPW = TC / TW

CPW = $10,000 / 1000

CPW = $100 / watt