The Power management space is definitely getting super-hot lately. Another day another announce with PowerZoa introducingtheir line of “cubes” which are:

Powerzoa cube is a smart plug that fits between your appliances and wall outlets. The cubes measure your energy usage and sends data to a personalized website where you can schedule appliances to turn on and off automatically, saving electricity, lowering energy costs and helping the environment.

While the website is hideous, it’s quite remarkable they had bot a power meter and a BPL chip fit into such a tiny package. We’re finally getting to what we were foreseeing with WaveStorm in 2007.

This is called the npower PEG from greenpower. It’s a bit big, but if you have a big girl’s bag you can hook one inside and charge your mobile as you go. Apparently, the device would charge your mobile in under one hour walk. One drawback though, the device has to remain in vertical position to be able to harvest energy efficiently.

Aqua Power System is a manufacturer of water-powered batteries, and the result is impressive. batteries are actually lighter than real batteries and are holding a couple of chemicals such as Aluminium, Copper and other secret stuff. By inserting water inside, you get a 300-600mA at 1,5V generator and that can be recharged with water up to 5 times. What’s amazing is that you can actually store them for tens of years !