Baby, it’s hot outside

When I was small, I used to march around our farmhouse in the winter singing a version of “Baby, It’s Cold Outside,” that old popular jazz tune that was revived multiple times by more artists than I can personally count. I still admit to humming that tune on occasion. Okay, yes, sometimes I still sing it, too, but this summer I’ve done my own adaptation of the chorus to “baby, it’s hot outside.”

As summer temperatures cook not just the relatively small percentage of sweaty people here in Oklahoma, who are rather used to summer heat, but also folks in places as far north as Minneapolis and Boston, concerns about whether our power infrastructure can keep up with the demand are inevitable. And, with a few minor exceptions, this major heat anomaly hasn’t really caused too much trouble for utilities. But, then again, utilities are planners. It’s the job of planners---you might even say their calling---to be prepared for anomalies.

And some of that planning includes demand response (DR) programs. This week, Con Edison's New York customers used a terawatt hour, or 1 trillion watt hours of electricity, according to the utility. (I love the wording of the press release on this heat wave response. They wrote: "That's a lot of juice. In fact, it's about the amount of electricity Vermont uses in two months.")

Con Edison gave credit to their DR program for curbing what could have been an even more record-breaking response. They assured people that, while a terawatt is a whole lot of power, things could have been worse if they didn’t have customers willing to respond to “calls for conservation,” as the company labeled them.

EnerNOC, Inc., a provider of demand response applications and services, announced that its DemandSMART network was dispatched at record levels this July as well in response to the heat wave---or “heat dome,” as the weather guys have been labeling it.

EnerNOC's network responded to a series of dispatches from grid operators and utility partners, providing about 1,230 MW of DR overall. One of the grid operators that EnerNOC works with, PJM Interconnection, set a new record for peak power use in July at 158,450 MW.

Demand response has been so helpful, it even got press in The New York Times this month. The paper discussed demand response options with North American Electric Reliability Corp.’s (NERC’s) John Moura, manager of reliability assessments. Moura labeled the DR available around the country as “imperative” in weathering the heat.

The Christian Science Monitor also did a piece on the wonders of energy efficiency and demand response in this oppressive heat, and they also quoted NERC, though they chose Mark Lauby, vice president of reliability assessment. (And, along with DR, they cited a weak economy as a factor. The concept is: We didn’t being this race at the starting line, but, instead, a few feet behind the starting line. So, the recession dip has helped demand not get too darn crazy, even with the heat. What they’re basically saying is that things would be a lot worse if the recession hadn’t already cut back on that power demand.)

So, worries about whether we have enough power seem unfounded, even as temperatures continue to break regional glass ceilings and power use sets national records. There are small issues in isolated pockets: Oncor is currently struggling to return power to a Dallas neighborhood for an outage cause by trees and not heat, though heat is exacerbating the problem. Baltimore Gas and Electric is getting complaints about their demand response program from people who think their air conditioning was turned off for too long during the blistering heat. And here in Tulsa, the local news is reporting record setting power use for the city and surrounding area.

Overall, though, we have to all admit that this old, cobbled together, partially updated, partially archaic power system that we have is doing very, very well for the stress we’re putting her under this summer. She keeps working, chugging along despite the desire we all have to sing “baby, it’s hot outside” and turn up the thermostat a couple of degrees.