4 ms·
"900 million active iphones in use" - CFO Luca Maestri 14.26 Wh * 900000000 * 365 (days) = 4684 GWh/yr 46% = 2154 GWh/yr wasted energy That's about the total
by InsomniacL 5y ago
"900 million active iphones in use" - CFO Luca Maestri
14.26 Wh * 900000000 * 365 (days) = 4684 GWh/yr
46% = 2154 GWh/yr wasted energy
That's about the total energy output of Madagascar with a population of 27 million people.
There's a lot of reasons why the above numbers are wrong but I just wanted to highlight that at current efficiency, there would be a lot of wasted energy. :)
- saddlerustle 5y agoThats about the energy demand of a single small aluminium smelter
- elzbardico 5y agonot exactly a lot of energy in the big scheme of things
- jopsen 5y agoYeah, it's not so much efficiency.. phones don't have that big batteries anyways. I would be more concerned about charging speed and heating. Inefficiency implies heating :) And wow, do I love charging my phone using my laptops USB-C charger.. it's just so fast! I don't really see the appeal of wireless charging. Faster direct charging would be a bigger win, IMO.