Calculating Dell Power Consumption for Servers

We are in the process of building out a new data center. One of the items I needed to know was a rough estimate of our new, monthly electrical bill. In some cases, you may need to show a return on investment (ROI) for going to a virtualized environment using VMWare or Microsoft Hyper-V. You can calculate the number of watts your devices use by visiting

If you need to calculate cost of power, you can convert watts to kilowatts (watts / 1000), then multiply that by 24 hours, 30 days, and the cost per kwh. So, if you live in an area that has a cost per kilowatt hour at 9.5 cents and your equipment uses 2500 watts, your total cost per month would be $171 per month.

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