We often get asked, “How does the horsepower of a gas or diesel engine compare to the kW rating of an electric motor?”

The simple answer, which is directionally correct, but not precise is that an electric motor of X kW is comparable to a gas or diesel engine with HP 2-3 times higher.

Now, here’s the real answer.  And it comes with a warning label, the following explanation is made overly complex by the inclusion of history, math and the difference between optimal and real-world outputs.

Click to read more