Apple's iPad costs you $1.36 per year to charge

The figure is based on owners fully charging the tablet every other day, according to the Electric Power Research Institute.

Josh Lowensohn/CNET

Apple's iPad costs precious little for you to charge it each year, according to a new study.

The Electric Power Research Institute (EPRI) conducted a study recently to see how much the iPad costs in electricity if users fully charge it every other day. The research agency, which is funded by electric power companies, found that the iPad will cost owners $1.36 a year, thanks to its consumption of just 12 kWh of electricity each year.

The EPRI assumed that there are now 67 million iPads in the world and applied the average energy use to each device to arrive at a total of 590 gigawatt hours of overall usage. In the event the number of iPads worldwide triples over the next two years, the energy required to power the devices would equal two 250-megawatt power plants operating at 50 percent utilization, according to EPRI. A quadrupling in sales would require three plants.

The crux of EPRI's findings, however, rests in the impact the iPad might be having on overall usage. Although it's consuming power, more and more people are using the device for gaming, video consumption, and Web browsing, effectively taking the power load away from higher-consuming products.

"These results raise important questions about how the shifting reliance from desktop to laptop to mobile devices will change energy use and electricity requirements for the information age," Mark McGranaghan, vice president of power delivery and utilization at EPRI, said in a statement. "At less than a penny per charge these findings bring new meaning to the adage, 'A penny for your thoughts.'"

EPRI stopped short of saying that devices like the iPad and other tablets will help conserve power, since it's hard to predict consumer actions. However, the organization did note that laptops consume about 72.3 kWh of electricity each year, costing folks $8.31. A 42-inch plasma television consumes an average of 258 kWh each year.

About the author

Don Reisinger is a technology columnist who has covered everything from HDTVs to computers to Flowbee Haircut Systems. Besides his work with CNET, Don's work has been featured in a variety of other publications including PC World and a host of Ziff-Davis publications.

 

Join the discussion

Conversation powered by Livefyre

Show Comments Hide Comments
Latest Galleries from CNET
10 mobile gadgets gone gonzo (pictures)
Apple in 2014: iPhone 6, iCloud hack, Beats and more (pictures)
The 12 most distinctive phones of 2014 (pictures)
Best mobile games of 2014
Nissan gives new Murano bold style (pictures)
Top great space moments in 2014 (pictures)