iPhone 5, Galaxy S3 Need Less Than $1 Electricity Per Year

There is now a new estimate that keeping an iPhone 5 charged over an entire year will consume 3.5 kWh. Other phones with different battery capacities, however, may incur substantially different charges. For example, Samsung's Galaxy S III manages 4.9 kWh. By itself, a single smartphone will cost less than $1 over an entire year to charge. For this writer, the cost is about 31 cents.

However, in aggregate, the power consumption of all smartphones is substantial. Opower said that the 170 million iPhones that are expected to be sold over the next year will consume as much power as all homes in Cedar Rapids, Iowa, which has a population of 128,000 people. Of course, the company also noted that the local battery is not the only power concern in a smartphone, but the data centers delivering information to those phones need to be considered as well. On the positive side, we are using smartphones for tasks we previously used notebooks or desktop PCs for, so we may end up with a power reduction after all.

Opower noted that a typical desktop PC requires about $28 of power per year to run, while a notebook needs about $8.

 

Contact Us for News Tips, Corrections and Feedback

Create a new thread in the US News comments forum about this subject
This thread is closed for comments
39 comments
    Your comment
    Top Comments
  • rosen380
    "However, in aggregate, the power consumption of all smartphones is substantial. Opower said that the 170 million iPhones that are expected to be sold over the next year will consume as much power as all homes in Cedar Rapids, Iowa, which has a population of 128,000 people."

    Don't almost all things used by a lot of people look bad in aggregate?

    The average American eats 112 bananas per year-- which produces about 6 pounds of banana peels as waste. That's not so much for a whole year.

    In the aggregate though, Americans are combining for over two billion pounds of peels per year. With the weight of American's banana peels in building materials, you could build 35000 1000 square foot houses, in which the 128,000 residents of Cedar Rapids Iowa can live in... :)
    13
  • Other Comments
  • DRosencraft
    If you care at all about the environment, or saving money, then this will make you feel good. Energy efficiency has become a persistent concern/interest in tech development in recent years and it is showing real progress. Mostly, however, the problem still rests in figuring out a way to make bigger inroads in curbing the energy appetite of data centers. There has been some progress there too, such as switching to different power generation measures (solar panels, wind, geothermal) but I think there is a lot more that can and will be done in the near future.
    3
  • Benthon
    Hahaha. I live in Cedar Rapids, Iowa! :D
    5
  • Anonymous
    $28 per year for a typical PC? wow, guess I'm A-Typical because my beast has a 1.2 kW PSU, and probably runs at around 250W idle and 900W when I'm playing an intensive game (such as Skyrim or Battlefield). I would assume I'm using, oh roughly 14 kWh per day (my computer is on 24/7) which comes to 14 x 365 = roughly 5 mWh. with power being at like $0.0955 per kW in PA average, let's say 0.1 to round it out. My computer costs me.........$500 per year to run.
    0