100kW Solar System Price in India with Subsidy (2024) | Amplus Solar

100kW Solar System Price in India with Subsidy

100kW solar systems are a powerful choice for businesses of all sizes in India. This system size is also being adopted by Resident Welfare Associations (RWA)/ Group Housing Societies (GHS) at subsidized  100kW solar plant costs. Switching to solar provides a perfect solution to reducing your overhead cost and becoming energy independent.

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Approx monthly electricity bill (INR)*

The Working of a 100kW Solar System and Its Benefits

A solar photovoltaic panel is the composition of several silicon solar cells. When exposed to sunlight, the photons interact with silicon and change their electrical characteristics. In simple words, sunlight incident upon the panels sets free the electrons in the cells, generating a flow of direct current. This power passes through the solar inverter and gets transformed into usable AC electricity. 

It takes a strategic arrangement of multiple solar panels for your 100kW solar system to produce enough power to run your property.

The upfront cost of a 100kW solar plant ranges between Rs.30 lakhs and Rs 55 lakhs. The final cost depends on the quality of components and the type of system you pick for your commercial or residential application. However, the benefits of switching to solar are immense and outweigh the initial solar investment by great margins.

Eliminate Electricity Costs

Businesses today have to contend with high overhead costs. Plus, electricity prices have doubled over the last decade making you pay a high utility cost every month. A 100kW solar system on the site can generate zero-cost electricity to meet your day-to-day power needs. As you cut down on your grid withdrawals, you immediately see a reduction in your monthly utility expenditures. Over time, these savings eclipse your 100kW solar system cost in just 6-8 years.

Improved Public Image with Green Credentials

Embracing solar PV technology is a great PR move. Solar photovoltaic technology is capable of making a significant global reduction of greenhouse gases in the atmosphere. Businesses have the opportunity to boost their public image by investing in solar and positioning themselves as an environmentally aware, socially-responsible, and progressive company.

Control of Future Electric Bills

The 100kW solar system prices can be seen as an investment toward hedging your business against future electricity price inflation. Thanks to its ability to generate free-of-cost power, you can lock in a much lower monthly electricity price and eliminate the element of unpredictability associated with grid-supplied power. As a result, it becomes easier for your business to budget and plan for business growth and the future.

100 Kilowatt Solar Panel Price List & Specifications

The commercial and residential 100kW solar power plant costs in India vary vastly. If you want to get the best returns, savings, and conveniences out of your solar investment, it makes sense to choose the best. Here’s an illustration of what you can expect when switching to solar.


100kW Solar Price

100kW On-grid solar system


100kW Off-grid solar system


100kW Hybrid solar system


Key specifications of a 100kW solar system:

Key components Solar panels, solar mounting structure, solar inverter, solar batteries (optional), the balance of system (cables, fuses, MCBs, and Distribution boxes)
Energy output – 430 to 480 kWh of electricity per day

– 14,400 kWh of electricity per month

– 1,72,800 kWh of electricity per year

Area required To install a 100kW solar system, you need a shade-free space of 600 Sq. Mtr.

Different Types of 100kW Solar Panel Systems

The key to maximizing your solar potential and savings is to choose a suitable system size based on your location, space, and energy needs. All these factors determine the type of 100kW solar system you should pick and the number of components making up your system. Here is what you need to know about the different types of solar systems to make a confident choice.

  • On-grid 100kW solar system (regulated under the net metering mechanism)
  • Off-grid 100kW solar system (suitable for remote locations)
  • Hybrid 100kW solar system (connects to the grid and also includes solar batteries)

100kW On-grid Solar System Specifications

An on-grid framework is one where your 100kW solar system is connected to the utility company’s power grid in your region. Aside from the main solar components (solar panels and a solar inverter), the system is equipped with a net metering system to record the flow of power between the grid and your solar system. Due to fewer components, an on-grid 100kW solar system cost in India is the lowest among all the three types of solar systems.

During peak sun hours on sunny days, your solar panels are likely to generate a surplus. All the unused solar energy is fed to the grid in return for solar credits. In addition to this, you can fall back on the grid when your solar energy output is insufficient to meet your power requirements on any day. 

100kW Off-grid Solar System Specifications

An off-grid framework functions independently of the grid. Meaning instead of using grid power to meet your additional energy requirements, you sustain on an on-site energy reserve. Solar batteries are an integral component in the composition of a 100kW off-grid solar system that eliminates grid dependence as well as the monthly utility bills.

All the solar energy that is not used to run your home or business is stored in the batteries. Your property draws power from this reserve during night hours and on days when solar energy output is inadequate.

An off-grid framework is highly recommended if you own a property in a remote location. Also, it’s a suitable option if you have to pay high electricity prices because the utility grid is located far away from your region or if you’re troubled with prolonged outages.

100kW Hybrid Solar System Specifications

A hybrid framework can help you unlock your location’s maximum solar potential and the numerous advantages that come with a 100kW solar system. In this type of solar system, you have the functionalities of both net metering and solar batteries. As a result, expect to pay a higher 100kW solar system price upfront.

However, the cost is easily recovered through the financial gains of solar. Not only do you save on your monthly electricity costs but also have solar batteries to keep you powered during outages and night hours.

To meet additional energy requirements, beyond what your solar batteries and solar panels provide, you can rely on the grid. Also, your 100kW solar system stays connected to the grid and gets billed as per the net metering guidelines.

100kW Solar Panel System Facts

Number of solar panels: The wattage of the solar panels you choose can influence the cost of your 100kW solar power plant in India. On average, solar panels come with varying efficiency ratings and wattage ranges – from 275 watts to 350 watts or even higher up to 600 watts. 

With lower wattage panels, your system requires approx. 370 solar panels to generate power up to its capacity. On the other hand, it’s 150 to 250 solar panels if you pick modules of higher wattage.

Warranty: Precision manufacturing of solar components has extended their lifespan. Most sellers can offer 25 years of performance warranty on solar panels and 5-10 years of product warranty on solar batteries and inverters.

Subsidy: Are you considering a 100kW solar system capacity for a medium to large-scale residential application? You can avail subsidy aid offered by the central government of India. A fixed subsidy amount is awarded for different system capacities which lowers the upfront 100kW solar system cost in India for you. Before you plan your solar transition, learn all about the eligibility criteria to qualify under the subsidy scheme which includes:

  • Go for only an on-grid solar system.
  • Select made-in-India solar components
  • Get your system installed by an empanelled vendor.

Visit the National Portal for Rooftop Solar to find all the latest details about the scheme and initiate your subsidy process online.

100kW Solar System Installation Cost in India

Setting up a 100kW solar system is a labour-intensive process. The installation process involves dealing with a large number of solar panels. Also, your choice of the module mounting structure also affects your installation cost. The approach to figuring out this cost is to connect with a trusted solar installer for a personalized quote. 

Many leading solar companies can offer a one-stop service experience and create a highly rewarding solar ownership journey for you. Your solar company starts with an on-site solar assessment and then custom-designs your system and sees your project to completion.

100kW Solar Panel System Subsidy in India

For rooftop solar plants installed for residential use all over India, the following Central Financial Assistance (CFA)/ Central Government Subsidy are available.

Rooftop Solar System Capacity

Applicable Subsidy (₹)

Up to 3 kW


Above 3 kW and up to 10 kW


Above 10 kW


Note: *₹18,000/kW for the first 3 kW and ₹9,000/kW for the rest of the capacity up to 10 kW.

**The subsidy amount is fixed for rooftop solar systems above 10 kW capacity.


100kW Solar Panel System Price in India with Subsidy

For Resident Welfare Associations (RWA) and Group Housing Societies (GHS), a subsidy of Rs. 9,000/- per kilowatt is available. You can obtain all the necessary details for subsidy calculations for high-capacity systems on the National Portal for Rooftop Solar.

Schedule a Free Site Visit Today!

Approx monthly electricity bill (INR)*

Frequently Asked Questions About 100kW Solar System

What financing options are available for getting a 100kW solar system?

Solar leases, solar loans and solar power purchase agreements (PPAs) are the popular financing options for consumers considering solar for their high energy requirements. These options can ease the upfront financial investment and determine your ownership of the solar plant.

What is the solar energy output of a 100kW solar panel system?

With a 100kW solar energy system, you receive 430 to 480 kWh of electricity per day. Your solar panels reach their maximum energy generation potential only during peak sun hours. Your daily output is reduced if your location doesn’t receive ample sunshine due to inclement weather.

How much area is required to install a 100kW solar system?

With high-quality solar panels, you can install approximately 160 watts per sq. mtr. By this calculation, installing 100kW solar panels can occupy between 600 and 700 square metres of shade-free rooftop area.

How do I apply for a solar subsidy?

You can easily submit your solar subsidy application online on the National Portal for Rooftop Solar. Check out the complete installation procedure here.

How long do solar panels last?

The main component of a solar system is the solar PV modules that absorb energy to generate electricity. Modern solar panels often last up to 25 years and carry performance warranties. In most situations, solar panels continue to function at a reduced efficiency level for many years beyond the warrantied lifespan.

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