What is Demand Reponse and how does it help in
conservation of energy
Demand response is used to even out supply and demand disparity in an electric utility. It helps in
avoiding overload and system failure, which can result in power blackout. Today an energy crisis is
one of biggest threats of all. Ideally it would be great to have excess power generation infrastructure
to ensure steady supply of electricity during the unexpected emergencies. Unfortunately this
infrastructure is expensive and in most conditions remains unused and idle.
Demand response is automatic program that can control energy consumption and also regulate use
of energy during peak demand periods. Generally any process or equipment that uses some form of
energy can be controlled by this program. Refrigerators, television, air conditioners etc are name of
such few types of equipment.
How does Demand response work?
To understand how this smart program works, we need to first understand a few terminologies related
to it. When you get into house and switch on the bulb, electricity travels to your house from local
power plant that is called load. When million others users along with you, light a bulb it increases
demand load on the grid. With ever increasing population, this demand load is increasing every year
rapidly. So, the program that helps us decrease the demand load is called as Demand Response. In
other words, it is consumer’s ability to voluntarily lessen electricity usage at peak hours i.e. at hour
when collective consumption of electricity is high, during high electricity prices or at times of
A smart grid is installed which operates on the principle similar to the internet. It would have a web of
access points that can be recognized and contacted. Through these access points the flow of
electricity can be automated, as and when required. If it senses any irregularity it would raise a red
flag and consumers are then asked to reduce or turn off their appliance.
The smart grid in today’s time is one way communication Demand Response but in future it would be
2 way communication between service provider and consumer.
Using smart grid has its own advantages it can help consumers to adjust their usage of electrical
appliance at the times where electricity price is low thus helping them, reduce their bill. And due to
change in technology the user of smart grid doesn’t need to be on location, he can do it remotely.
What are the different types of Demand response?
Demand response can be categorised in three major types:
1) Emergency Demand Response: at the times of electricity supply scarcity this demand
response is hired to avoid unintentional interruptions in service.
2) Economic Demand Response: this demand response helps the consumers to control their
electricity bill by suggesting when their consumption is worth less to them than paying for
3) Ancillary service Demand Response: this consists of few speciality services which ensure
safe operation of transmission grid.
Demand response is revolutionary way for smart decision about energy consumption.