5 ways to power the Internet of things

Gigaom: The Internet of Things could have a mind-boggling 24 billion devices connected by 2020 and that means there will be more than three times the amount of connected devices as people on the planet by that time. So, how will the world power all of these gadgets and machine-driven devices? The answer, beyond plugging all of those devices into the grid, will include farming tiny slices of power when available, from sources like the sun, vibrations, mechanical energy, heat and more.

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