2009-04-06

The National Grid Network

Electricity is a convenient form of energy because it is easily transmitted, switched on and switched off. The problem with electrical energy is that it cannot be efficiently stored for future use. Batteries can only be used when small quantities of electrical energy are needed.

They are not suitable as main source of power supply.This power supply is distributed to places where electricity is needed.

The Chart below shows the transmission and distribution of electrical energy.

The cables from the power station are connected to a nationwide supply network called National Grid Network. Using the National Grid Network, power stations in areas where the demand is high. Also power stations can be built away from cities and towns. The advantage of the National Grid Network is the uninterrupted power supply even when there is a breakdown in one power station. The other power stations will increase their production to ensure continuous power supply.

Please note though that the regulation of the Network Grid differs from countries to countries. Power from the National Grid Network is distributed by a series of substations to meet the reqirements of consumers. The engineers at the central control of the National Grid Network continually asses the demand, direct the flow and reroute electrical energy when breakdown occurs.

Sometimes this system break down due to unanticipated demand for electricity, which is called and overload. The demand of electricity is usually the highest during the day.

1 comment:

Cindy Dy said...

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