As we all know, more than 60% of our Energy Demand will be fulfill by Fossil Fuel resources and, these resources are limited. Over the period, the availability of fossil fuels is decreasing. We have to be more focused on Renewable Energy Sources to fulfill our Energy requirements.

Amongst the Renewable Energy resources, there are majorly two types of resources that we can use- a) Wind Energy & b) Solar Energy
Solar Energy is one of the best available resources that we can use for our daily Essential Needs.

What is Solar Energy?
Solar Energy is Radiant light and heat energy from Sun. When Sunlight falls on Solar Cells, the Photon Particles of Sunlight Energize the Electrons of the Solar Cell and, it started flows which Generate Electricity.

1 kW Solar Power System, consists of 3 main components.:
Solar Module, Solar Inverter, Solar Structure.
To install and connect these main components, we need few more accessories like DCDB, ACDB, DC cable, AC cable, MC4 Connector.

Solar Module: Solar module converts Solar Energy into Electrical Energy. By connecting Solar Cells in Series-Parallel combination, can get the Solar Module, and when connecting Solar Module in the same ways, it becomes a Solar Array.
It’s a 1 kW System if each Solar Module rating is 335Wp.
No. of Modules required: (1000/335) = 2.98 ~ 3 nos.

Mono-crystalline (efficiency: 19-20%) Poly-Crystalline (efficiency: 17-18%)

Solar Inverter: Solar Module generates DC (Direct Current) electricity, of our household & industrial load we always need AC (Alternating Current). To convert DC electricity into AC electricity will need an Inverter, in which the Input side will connect to the Solar Module, the output side will connect to the load.

For a 1 kW system, you need a 1 kW Solar Inverter.

Module Mounting Structure:
To get the maximum Solar radiation, should provide a Tilt Angle while Placing the Modules. To give this angle, we need Module Mounting Structure. As per the tilt angle and available area, we have to design the structure.

The tilt angle can be equal to the Latitude angle of the Solar Plant Location. Example: In this case, we have latitude angle 23 Degree, so Tilt angle= 23 Degree

Ground Mounted Solar
Rooftop Structure

Where do you place the solar modules?
According to the placement of Solar Modules, Solar plant classifies into:

1. Rooftop Solar Plant

2. Ground Mounted Solar Plant

Rooftop Solar Plant: As the name suggests, if you place Solar Modules on your rooftop, it is known as Rooftop Solar Plant. It’s applicable for Residential & Commercial buildings.

Ground-Mounted Solar: In this case, we will Install the solar modules on vacant land. It’s suitable for large-scale solar projects.

Do you need Battery for Solar System?
Solar PV Plant having 3 Types:

a) ON-Grid Solar PV Plant
b) Off-Grid PV plant c) Hybrid PV Plant.

*For the ON-Grid system, there is no requirement for a Battery. The Solar Plant is to connected to the Electricity Department line. So whenever extra need power it will be supplied by the Grid.
*For an Off-Grid system, we have to use a Battery for Power backup during night hours.

How much do you need to invest for a 1 kW Solar Plant?
There is no such standard set Price for Solar Plant, varied according to the site conditions.
If you install an ON-Grid System, the price range will be Rs.50,000 – 60,000
If you install an Off-Grid System, the price range will be Rs.100,000 – 1,10,000

What are the benefits you can get from Solar Plant?
After installing a Solar Plant, you’re using generated Energy from Solar. So you’re not importing Energy from the Electricity Department line, actually saving on your electricity bill expense.
Example: My Building Electricity Tariff is Rs.8/Unit
1 kW solar plant daily average generation 4 units
Daily savings: 4 X 8 = 32 Rs.
For rooftop Solar, module placement can decrease the room temperature as Solar Module absorbing the Solar Radiation. So, a solar plant can help you to cool down your room temperature.

After-installation maintenance procedure:
* Weekly or Monthly Module cleaning is necessary.
* Schedule connection checking will keep the system healthy.
* All the modules should place in a shadow-free area. Shadow can decrease solar plant generation.
* For the ON-Grid Solar system, the maximum possible Solar Plant capacity can be equal to the approved connected load from Electricity Department.
* For the Off-Grid Solar System, the battery bank should design as per the load requirement.

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Source: Amiya Krishna Panda | LinkedIn