# I need to find the energy efficiency of an elevator. I have found 2 energy efficiency equations on the internet but don't know which one to use. Could someone tell me which one to use?

##### 1 Answer

May 20, 2016

I am not sure this is going to help but...

#### Explanation:

I am also not sure the kind of data you have but I would use:

Where:

You basically consider the rate at which energy is "lost" during your transformation as a pecentage.

Let say that you get