Posted: 28 Sep 2010 04:55 PM PDT

Paris' metro service generates a huge amount of heat, as commuters will know sitting on a sweaty platform or in a sweaty carriage, but a new idea is that this heat will be used to heat up water which will then be piped up to houses above and used for under-floor heating. This will not only reduce heating bills for the residents, but it also provides a greener style of living for these residents. Although the metro is already an energy-hungry and polluting method of transport, this new idea may make it a little bit more inviting to commuters who would usually look for greener methods of travel.

via Guardian

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Paris Uses Excess Metro Heat to Warm Houses

LED-powered Escape Light

Posted: 27 Sep 2010 08:52 PM PDT

Emergency exit lights never really got much attention until the whole wasted energy topic got out. And now it looks like even the simple escape lights are getting their share of attention, minimal but still energy-wasting sources that could be improved.

And the solution for it seems to be in the form of LED power. LED Escape Lights should be keen alternative, functioning as a portable LED electric torch which will feature an integrated projector to project a map so that you can find your way out accurately.

This is something that business or even movie houses may want to consider, particularly the ones who are operating for most parts of the day including the dark.

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LED-powered Escape Light

The Kawkaba 3000 Electric Car Concept

Posted: 27 Sep 2010 08:51 PM PDT

Here is another electric car concept for you called the Kawkaba 3000. This car concept is made of fiberglass and silicon which should complement the toughness and flexibility needed by motorists.

The car is extremely light, thus making energy outflow manageable so that battery life can be lengthened until the next recharge. This remains a concept and as of this writing, nothing definite has been bared if it will every go out of that (being a concept!)

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The Kawkaba 3000 Electric Car Concept