The phrase is used to describe those hot, sultry days in July and August. Here in the southeastern U.S., these days are typically almost unbearable with the heat and humidity. We welcome the break in weather that comes in the fall that allows us to open the windows to enjoy fresh air.
The Greeks and the Romans believed that the “Dog Days” were an evil time. Here’s how Brady’s Clavis Calendaria put it: “The Sea boiled, the Wine turned sour, Dogs grew mad, and all other creatures became languid; causing to man, among other diseases, burning fevers, hysterics, and phrensies,”
I made the mistake of traveling during this evil time over the past couple of weeks. My odyssey of weather, mechanical problems, delayed flights, missed connections and luggage was almost worthy of Homer.
I know that everyone reading this has experienced the same. I try to use these experiences as learning opportunities. While it is tempting to say “I learned never to travel again,” I know that I will be on planes and going places within a few weeks. So what were my lessons?
The airlines are using some kind of optimizer to minimize the number of planes and maximize their time in the air. Makes sense. They don’t make money if a plane is sitting on the ground.
The optimum the airlines are finding is a “brittle optimum.” If you think of optimums as either a peak or a valley, where a ball will sit still, the airlines have chosen a “peak” where once the ball shifts even SLIGHTLY off the optimum, it will roll further and further away.
A “valley” is a stability point; the ball moves away, but rolls back to the optimum with no external forcing mechanism.
They count on the overnight reset to bring the system back to “optimum.” In other words, they roll the ball back up the hill overnight, but that’s a different Greek myth (Sisyphus) for another day.
We passengers are at least partly to blame. Few travelers are willing to pay even a few dollars more for an improved on time rate. In the world of deregulated air travel, we’ve demonstrated to the airlines that the only thing that matters is the cheapest fare.
From now on, I will try to remember Harding’s First Principal of Travel: ALWAYS FLY IN THE MORNING.
Cheapist Aint Best. What does this have to do with nuclear energy? The electricity system in the U.S. is in real danger of doing EXACTLY the same thing. Ratepayers, public utility commissions and independent system operators are always looking for the cheapest electricity.
The fact that some of the players get outside subsidies, or that some players get state mandates to support their chosen form of generation, are inadequately considered in electricity markets. Also improperly considered is the need for capacity to be available whenever the demand is there.
The capacity issue is the one that haunts the nuclear industry the most. Flying a plane half full to get equipment to the right place, and to have some extra equipment in the system to allow for potential failures, is the right thing to do but it costs money.
If the airline cannot get compensated by the passengers for having extra planes available when and where they are needed, they eliminate those flights that don’t pay enough.
Base load plants operate best when they run flat out as much as possible. Having them on line and operating gives the system cushion for when other generation isn’t available or demand peaks high enough.
The problem is that the markets will not pay (reward) these plants for their capacity to generate electricity when demand is low or their ability to stabilize the grid, or they don’t pay enough to keep the plants running.
This is where the analogy ends. There is a profound difference between the airlines and electricity. If passengers decided that on time performance was worth paying for, airlines could quickly add planes to their fleets and improve that performance over a matter of a few months.
If nuclear plants are closed, and their licenses withdrawn, there is no way to bring that generation capacity back. New plants take time to build.
If we allow nuclear plants to continue to close for economic reasons alone, we’re going to wake up one day and realize that we allowed a terrible decision process to destroy our way of life.
We have to stop talking to ourselves and get out there and start shouting to the world about these issues. Too many people are asleep and dreaming of a make-believe world where windmills and solar panels will keep them warm and dry and well fed.
This article was originally published in Fuel Cycle Week Vol 13 #582, 08.28.2014 where Margaret is a regular columnist. To become a subscriber, go to www.FuelCycleWeek.com or contact the publication at email@example.com.