In this presentation we will describe how electrical energy can be saved using solar energy.

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2. Solar on grid is also known as grid- tied or utility
interactive system. It generates solar electricity through
solar panels and route it to the utility grid. Living with an
on-grid solar electric system is the same as living with
grid power, except that some or all electricity you use
comes from the sun.
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3. There are four different cases we are going to study now :
Case 1 : ONLY SUN ENERGY
The solar panel collects the sun energy. The dc solar
electricity goes through the dc disconnect switch to the
DC/AC inverter where it will be converted to AC. Through the
AC panel breaker AC electricity will then supply to your
households.
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4. Case 2 : SUN + GRID ENERGY
In some cases sun energy is not sufficient so we use sun +
grid energy i.e. in cloudy or rainy days
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5. Case 3 : SUN and EXCESS ENERGY
In case there is excess of sun energy from your house it will
sometimes turn the electric meter backward to the utility
grid.
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6. Case 4 : GRID ENERGY AT NIGHT
At night, we have no energy comming from sun so we are
left with only one option i.e. utility grid.
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