The dudes from Make have hacked up a Kill-A-Watt unit to wirelessly squawk power usage information so you can monitor the usage of a line remotely. The Kill-A-Watt units are very good and produce interesting information about power usage. For example, we figured out that our DVD player when on uses 95% of the power as when it is playing.

It may seem odd to want to let everyone following you on Twitter know your power consumption, and yet, it's still kind of a neat experiment. If you're wanting to cut back on power use, having the information be public might help inspire you to keep up the good work. And a specially tweaked "Tweet-A-Watt" just might help you accomplish that without your needing to update your Twitter feed yourself.

The Tweet-A-Watt is a modified Kill-A-Watt. It has been entered by MAKE into the Greener Gadgets competition and will be an open-source project.