Free energy wireless environment sensors fom Intel

'Free' energy

Intel is developing devices that can tap the energy in the environment around them. Sunlight is one possibility, but so are television signals, cell phone towers and body heat. The amounts of energy captured at any one time would be very small, so the devices would need to act as "scavengers," storing up energy until they had enough to perform a specific task.

Wireless Identification and Sensing Platform (WISP)

This concept merges sensing and energy scavenging. Intel is researching sensors that would store up energy until they had enough to run a built-in data transmitter. Again, because the amount of power involved would be small, the transmitter would have very limited range. But it could still be useful. Rattner gave an example of a medical implant monitoring a patient's health and transmitting data to a doctor by shipping that data to a cell phone near the implant.

Adaptive power

Energy demand in a computer or a data center isn't constant - it increases or decreases depending on what tasks the gear is performing. Intel is trying to develop processors that can follow changes in energy demand microsecond by microsecond (one millionth of a second), minimizing the amount of electricity lost to idling.