I am Fawaz, and im interested to about piezoelectric power generation. my questions is ” how much power will get a piezo electric.

If you’re going to correct misstatements, you owe it to everyone to BE correct. A watt (mega- or otherwise) is NOT a unit of energy; it’s a unit of POWER—i.e., energy per unit time. Energy is expressed in such units as joules or BTUs.

WORK is another thing altogether and almost entirely off-topic here. Work is force (neither energy nor power) applied over a distance (irrespective of time). While work is expressed in the same units as energy (joules), it isn’t precisely what we want here, because this device produces electricity which is commonly conceptualized as a form of “potential” energy, while work is normally “applied” or “manifest” or “expended” energy. Another way to consider it: electrically generated ENERGY hasn’t been used yet, but WORK has; the energy produces the work (by transformation).

You are on target insofar as the article’s author should have used appropriate units of production capacity for the device (e.g., either megawatt-HOURS per year, or more simply & purely, just megawatts). But please get your facts straight before correcting others’, so that we’re all better enlightened.

Respectfully,
~myTwoCents

I would be happy to stop by the office to help out and educate on this. Here is a prezzie I did for Columbia physics dept. fun over view http://www.slideshare.net/guest69c0e/renewable-futures-presentation

The energy is already being lost by the cars, those are the vibrations they’re referring too.