current Archives - Michaels Energy

Mar 13

The Roots of our AC Power Grid

By Jeff Ihnen Energy Rant No Comments

A while back, a reader asked, “why don’t we switch to at least localized direct current power grids?” The simple answer is it would cost a fortune for both the utility and the consumer to change all distribution and consuming loads to take DC power. As I researched power factor, I recalled why we have an alternating current power grid in the first place. This is interesting and worth knowing, Rant Pack. With that, I apologize for making you wait another week to understand why power factor matters to energy efficiency, directly. A Short Story You know I can’t resist…

Mar 03

Love0

Hannibal, Max and Me

By Jeff Ihnen Energy Efficiency, Energy Rant, Retrocommissioning (RCx) No Comments

I hate electricity. I love what it allows me to do but I just don’t understand it. I sat through an in-house safety training session on arc flash, which I actually understood – there is a huge burst of energy through a “fault” that melts and actually vaporizes the copper conductor, which expands 7,000 times at Mach 2 and 1 million degrees F (made up numbers but the premise is correct). It’s one heck of an explosion. During a break I was asking our electrical engineers what the difference between a neutral and ground was, the flow of electrons, the…