How much does Solar Panel Installation Cost in India
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A Solar PV system is a system whose function is to generate electricity using sunlight and supply electricity to the load when required. In order to achieve this objective, many components are connected together in a solar PV system, other than PV modules.?So the?solar panel installation cost depends upon the solar system type and components used in Solar Panel Installation.
There are many ways in which PV modules and loads can be connected together in PV systems. The type of connection depends on the type of loads, the availability of the grid and other power generators, etc. Solar PV systems can broadly be divided into three categories,
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Off–Grid Solar System Installation Cost -
There are many locations in India where the electricity grid is not available. In this case, if we need to design a power system, solar PV modules will be the only source of the power supply. These types of solar systems are known as Off-grid PV systems.
These solar systems are located near the load center and are dedicated to meeting all the electric loads of a specific set of loads. It is most relevant and successful in remote and rural areas having no access to grid supply.
In this system, if the load needs to be operated in the nighttime, there has to be some storage system. Therefore, batteries play an important role in off-grid systems.
On-Grid Solar System Installation Cost
A grid is a network of transmission lines or wires from various parts of power plants to our homes and industries. All are may be seeing an electricity grid every day. The existing electricity grid also can be used for transferring the power generated by a large solar PV power plant. In the on-grid systems, the power generated by the solar PV modules is fed into the existing electricity grid and that is why they are called grid-connected PV systems. This system does not consume power and they do not need power during the night hours. So, in grid-connected solar PV plants, a storage system is not required.
Hybrid System: -
The PV modules generate power when sunlight is falling on them. The solar PV system can generate power during the daytime only but at night it can not generate Power. To fulfill the load requirement during the night, we use a battery bank system. But the use of a battery bank increases the cost of the system significantly and also reduces its reliability because it requires maintenance.
So to supply power during non-sunshine hours we have to use another power generating units. The other power-generating unit could be a diesel generator, windmill, fuel cell, etc. In this way, a system will have two power-generating units; one is PV power and the other could be any other power-generating unit. There can be more than two power-generating units connected to a System called?Hybrid System . In this way, Hybrid systems are basically used to increase the reliability of load operation.
Different components used in solar System: -
PV Module?
-?It converts sunlight to electricity.
- The price depends on the wattage of the module and also Varies from company to company.
-?Average cost of a solar module is?24.5?Rs per watt.
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Inverter
- The electricity produced is DC, but loads use only AC Power, the Conversion of DC power into AC Power is required. This Power Conversion is done by a device called,?Inverter.
- The Average cost of the inverter is?8-10?Rs per watt (On-grid).
- Average cost of the off-grid inverter is more than?15 Rs per watt.
Array-Combiner Box
- An array combiner box is used to electrically interconnect solar PV strings to make an array.
- The Combiner box also houses DC voltage and Current Protection used in a solar PV Array.
- The average cost of an Array Combiner box is?1Rs. Per Watt.
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AC Distribution Box
- AC Distribution box is used to distribute AC Cables to the transformer to load.
- It also houses a protection device.
- The Average cost of ACDB is?0.8 Rs. Per Watt.
DC Cabling
- The DC Cables are used to interconnect strings to make an array and connect PV array output to Inverter DC input.
- The Average cost of DC cable is?2.04 Rs. Per Watt.
AC Cabling
- The outputs of inverters are connected to the AC distribution box using AC cables.
- The average cost of AC cable is?2.04 Rs. Per Watt.
Mounting Structure
- The Average cost of module mounting structure is?4 Rs per watt.
Lightening Arrester
- A lightning arrester is a device used on solar power systems to protect the insulation and conductors of the system from the damaging effects of lightning.
- The Average Cost of LA is?2 Rs. Per Watt.
Battery
- The electricity produced is available when sunlight is there. But the Load may need electricity during non-sunshine hours. There is a need to store energy for nighttime applications. For energy storage applications,?Batteries?are required.
- The price of the battery depends on the battery size design. It is not standard.
Charge-Controller
- Charge controllers are included in most PV systems to protect the batteries from overcharge and/or excessive discharge.
- The minimum function of the controller is to disconnect the array when the battery is fully charged and keep the battery fully charged without damage.
- The charging routine is not the same for all batteries: a charge controller designed for lead-acid batteries should not be used to control NiCd batteries.
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The total Installation cost of?the Solar System
These Costs are not always the same. It is Approx Value Varies with your Own design of the Plant.
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Blog By –?Sweta Sneha Das