Skip to main content

alternating current


Soaked to Crisp Threats and 100% Renewable Energy

By Energy Rant No Comments
Last week I attended the International Energy Program Evaluation Conference, IEPEC, which I had affectionately dubbed the Energy Program Evaluation Asylum, EPEA, six years ago. Back then, I called it the Asylum because it included annual scrums over subjects such as net-to-gross (NTG) studies, free ridership, and so on. The Family Feud is Dead You’ll never believe this, but the industry seems to have moved on. The only time I heard “NTG” was during the opening-night entertainment exercise – a gameshow wannabee modeled after the Family Feud. “One hundred evaluators were surveyed. The top six answers are on the board....
Read More

The Roots of our AC Power Grid

By 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...
Read More

Power Factor Cures for Toenail Fungus

By Energy Rant One Comment
This post ends with a quiz and more than 49 $5 Starbucks card winners for correct answers. Why the quiz for this post? Because the subject is power factor. Most descriptions of power factor remind me of riding the NYC subway many years ago before passengers buried their faces in their smartphones, which did not yet exist. Instead, choices included looking at the floor or the ceiling, like riding an elevator. God knows you don’t want to make eye contact with the person sitting across from you. At the ceiling were ads for the most socially undesirable products imaginable: cures...
Read More

Grid Power Generation – Stories Untold

By Energy Rant 2 Comments
Most of you reading this owe your lives to the phenomenon described in this post. Therefore, it is worth understanding precisely how grid power is generated, and what it looks like. And of course, you will not find this anywhere else. Rant topics are inspired by reader comments. At AESP National, a young gentleman approached me to say the Rant provides good information that is easy to understand and read. He referenced a Greentech Media Energy Gang podcast, which explained as much. At the ~50 minute mark of the podcast, they explain that learning how things work, and being able...
Read More