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pike
Premium,MVM
join:2001-02-01
Washington, DC
kudos:3
reply to pende_tim

[Environmental] Re: OOPS... DelMarva Power and Thermostats

I'm not too sure it was an oops. I'm pretty sure this was intentional. I received this somewhat unusual email from the District emergency management agency on Tuesday.

quote:
From: AlertDC
Date: Tuesday, January 7, 2014
Subject: Conserve Electricity
To: Utility Alert Recipients

PJM Interconnection, the electricity grid operator for more than 61million people in 13 states and the District of Columbia asks customers to conserve electricity, if health permits – especially from 6 am to 9 am Wednesday. Customers can take simple electricity conservation steps:

• Set thermostats lower than usual, if health permits.

• Postpone using major electric appliances such as stoves, dishwashers and clothes dryers until mid-day or after 9 pm, when the demand for electricity decreases.

• Turn off electric lights and appliances that you do not need or are not using. Conserving electricity on Wednesday will help PJM ensure an adequate supply of electricity.

Sent by DC HSEMA
It looks like the grid operator predicted demand would exceed generation capacity. When I received the email I briefly wondered if an interconnect agreement had expired or perhaps some facility was taken offline for unplanned maintenance. I realize the weather is unusually cold but I didn't think demand could possibly be greater than peaks during the summer months.

TheMG
Premium
join:2007-09-04
Canada
kudos:3
Reviews:
·NorthWest Tel
said by pike:

I realize the weather is unusually cold but I didn't think demand could possibly be greater than peaks during the summer months.

This is just a WAG, but if the temperatures have dropped low enough that heatpumps can no longer operate effectively, electric resistance heating uses considerably more energy. Even more than running the air conditioner (heat pump in reverse) in the summer.


pike
Premium,MVM
join:2001-02-01
Washington, DC
kudos:3
I considered that but I assume (erroneously perhaps) that homes using electricity for heat are the minority. I believe the last figure I saw was somewhere around 35%, which very well could be out of date.


CylonRed
Premium,MVM
join:2000-07-06
Bloom County
said by pike:

I considered that but I assume (erroneously perhaps) that homes using electricity for heat are the minority. I believe the last figure I saw was somewhere around 35%, which very well could be out of date.

However - there can be areas where houses built in the 70's used electricity. Near where I live an entire area of the city has all electric homes. They actually put a emblem around the door bell button announcing that the house was all electric.

There are still a lot of places that have electric heat from the same period of time. So small cities like the one I live in, could have more than 35% of the homes on electric heat. All depends on the area, when the houses were built, and what types of heat sources they had at the time of building.
--
Brian

"It drops into your stomach like a Abrams's tank.... driven by Rosanne Barr..." A. Bourdain