It’s recommended that a homeowner use a generator calculator to determine an accurate wattage estimate or hire an experienced local electrician to calculate the exact wattage that is necessary.

This online tool offers a Power Supply Calculator to calculate the Power Supply Wattage for your computer base on CPU, GPU, etc.

To calculate the cost to run an air conditioner for one hour, consider the unit’s wattage, the average cost of electricity in your state and the number of hours your unit runs daily.

If you leave one plugged in over time, it also helps you calculate the average watt-hour (or kilowatt-hour) usage of a specific appliance. That number can help you estimate how many hours you ...

Calculate the number of panels: Lastly, you'll need to determine the wattage of the solar panels you plan to install. The average solar panel efficiency in the US is rated between 250 and 400 watts.

You can't always control the price of electricity, but you can control your home's energy consumption. Here's how to calculate it.