[Eric in the Ozarks]

I’m still trying to convert magajoules to megawatts...

[Bob]

I’m still trying to convert magajoules to megawatts...

One megajoule is one megawatt of power expended over a one second time period. Since I'm fairly sure that the firing energy is applied over a much shorter time, the peak power is probably in the range of hundreds of megawatts.

[blackdog]

My wife converted my megajewels to megawhat’s a long time ago.

[Cannoneer]

A joule is a watt of current discharged for one second:

Ergo one megajoule is one megawatt/second