Power generator powered exclusively by gravity is possible?


No. Newtonian gravity is a conservative vector field (or conservative force) which mean that energy that you extract from the field has to be put in first. This is technically stated as the work done around any closed looped is equal to zero. For example, you raise your pet cat up 1 meter (you do work against gravity) you let go and gravity does the same amount of work on your cat. Any work done by a mechanical machine must obey the same principle.

In summary, no, a generator cannot be powered by gravity because you simply cannot extract net work from the field.

However, hydroelectricity is an example of using gravity to do work, but in this instance to water was already at the higher potential.


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Author by


lsalamon [a] gmail com

Updated on July 21, 2022


  • lsalamon
    lsalamon less than a minute

    According to this site, it seems so.

    Power generator powered exclusively by gravity:

    enter image description here enter image description here enter image description here enter image description here

    • Pranav Hosangadi
      Pranav Hosangadi over 8 years
      Would be good if you can translate the essentials of the site and put it here
    • lsalamon
      lsalamon over 8 years
      Scroll down, on the site, there is the text in English.
    • boyfarrell
      boyfarrell over 7 years
      People should not be down voting this question. It's absolutely fine to ask this.