Despite all of the praise it’s received for its Retina display and LTE-compatibility, the new iPad does have its caveats. For instance, it takes considerably longer to charge than both of its predecessors.

The reason for this is obviously because the new iPad has a bigger battery. But surprisingly, it’s still rather efficient. According to a new study, the tablet only costs $1.36 per year to charge…

AppleInsider points to a new study from Electric Power Research Institute, a non-profit organization focusing on electricity research and development, regarding Apple’s latest iPad.

“The third-generation iPad, which sports a high-capacity 42.5-watt-hour battery, uses 11.86 kilowatt hours of electricity over a one year period, a stark contrast to a 42″ plasma television which consumes 258 kWh. An average laptop consumes 72.3 kWh while a 60-watt CFL light bulb eats about 14 kWh, costing an average of $8.31 and $1.61 a year, respectively.”

The numbers will obviously vary by location and charging habits. This particular study took place in Knoxville, Tennessee, and is based on charging the device every other day for a year.

Regardless, it’s still interesting to see that, on average, the iPad uses less energy to charge in a year than the average 60-watt light bulb.