In recent years, the adoption of solar energy in India has accelerated, especially among businesses and residential complexes seeking to reduce energy costs and their environmental footprint. One of the most effective solar solutions for medium to large-scale energy needs is the 100kW solar power system. This article delves into what a 100kW solar system entails, including its cost, benefits, and the area required for installation.

This blog will guide you through the process of setting up a solar power plant in India, covering steps such as costs, available subsidies, and essential considerations.

100 kilo Watt Solar Plant Cost

A 100 kW solar system is ideal for businesses or large residential setups looking to reduce energy costs. In India, the cost typically ranges between ₹35,00,000 to ₹50,00,000, depending on factors such as brand, panel type (monocrystalline or polycrystalline), and quality.

A 100 kW solar plant is an ideal solution for businesses and large residential properties looking to save on energy costs. It is essential to choose high-efficiency panels with a long warranty. Additional costs for installation, accessories, inverters, and battery storage can increase the overall expense of the system.

  • Energy Output:
    A 100kW solar system typically generates between 400 and 450 kWh of electricity per day, depending on location, weather conditions, and sunlight availability.

  • Area Requirement:
    A traditional 100kW solar system requires about 10,000 square feet of shadow-free area.

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Why Invest In A 100kW Solar Power System?

Here is a simplified step-by-step process for setting up a solar power plant in India:

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  • Payback Period:
    With electricity prices in India typically ranging from ₹5-6 per unit and consistently rising, energy expenses constitute a substantial portion of business operational costs. Switching to solar energy offers a more economical alternative, potentially saving you millions over the system’s lifespan. The payback period typically ranges from 4 to 7 years, based on electricity rates, solar irradiance, and usage patterns.
  • Optimal Use of Unused Spaces:
    Many commercial establishments and residential societies have ample underutilised spaces like rooftops, parking areas, and backyards. Installing a 100kW solar system allows you to transform these areas into energy-generating assets, making efficient use of available space.
  • Low Maintenance:
    Solar photovoltaic (PV) systems are known for their durability and require minimal maintenance. Routine cleaning of panels and periodic inspection of inverters and connections ensure optimal performance. Additionally, most solar inverters come with remote monitoring capabilities, allowing for easy system checks and troubleshooting.

  • Multiple Financing Options:
    The Indian government encourages solar adoption by offering various financing options such as solar loans and leases. These options make it easier for businesses to invest in solar without straining their finances.

  • Enhanced Brand Image:
    In today’s market, sustainability is increasingly becoming a key differentiator for businesses. Installing a solar power plant not only reduces your carbon footprint but also enhances your company’s reputation as an environmentally responsible and forward-thinking organisation.

Types of 100kW Solar Systems

  • On-Grid Solar System
    This system is connected to the local utility grid and operates under the net metering mechanism. During sunny periods, any excess energy generated is fed back into the grid, earning solar credits. This type is the most cost-effective among the three. These systems are cost-effective because they eliminate the need for batteries, reducing initial investment and maintenance costs.
  • Off-Grid Solar System
    While off-grid systems provide energy independence, they are not ideal for areas with inconsistent sunlight or high energy needs due to their reliance on battery storage. Batteries also have a limited lifespan and higher replacement costs.

  • Hybrid Solar System
    Combining the best features of both on-grid and off-grid systems, the hybrid system includes battery storage and remains connected to the grid. This setup provides greater flexibility by allowing users to store energy for nighttime or outages and sell excess to the grid via net metering. However, they are the most expensive due to the combined setup of batteries and grid connectivity.

Installation Process of a 100kW Solar Power System with Alpex

  • 1

    Site Survey: Our Alpex’s expert team will visit your property to assess your space and energy needs, ensuring optimal placement for solar panels.

  • 2

    System Design: Based on the survey results, they will design a custom solar solution that aligns with your energy consumption and available space.

  • 3

    Permits and Approvals: All the necessary paperwork, securing approvals from local authorities, and ensuring a smooth installation process will be done as a next step.

  • 4

    Installation: Our trained technicians will mount the solar panels and wire the system efficiently, minimising disruptions.

  • 5

    Inverter & Battery Setup: For hybrid or off-grid systems, we will install and configure inverters and battery storage, ensuring complete energy independence.

  • 6

    Testing & Activation: Testing of the system will be done for efficiency and functionality, ensuring everything is working optimally before activation.

This entire process typically takes 4-6 weeks, with Alpex providing full support from start to finish.

Conclusion

A 100kW solar power system is a valuable investment for businesses and residential complexes in India. With significant cost savings, reduced carbon footprint, and government subsidies, this system offers a sustainable solution to rising energy demands. Whether you choose an on-grid, off-grid, or hybrid system, solar power is a strategic move toward energy independence.

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FAQs

Costs for a 1 MW solar plant range from INR 4 to 5 crore, depending on factors like land, equipment, and installation.

To set up a solar power plant, you will require approvals like land-use permissions, environmental clearances, grid connectivity agreements, and construction permits from relevant state and central regulatory bodies.

Net metering allows solar plant owners to receive credit for excess electricity sent to the grid. This offsets electricity costs, making it a cost-effective solution by reducing monthly utility bills.

Rooftop solar power plants are ideal for residential setups, as they maximise available roof space, are relatively easier to install, and allow homeowners to generate their own electricity and reduce their utility bills.

Yes, the PM-KUSUM scheme offers incentives for solar installations aimed at farmers and rural areas, including subsidies for solar pumps and grid-connected solar plants for agricultural purposes.

Author : Gaurav Bector

Gaurav Bector, Vice President of the EPC division at Alpex Solar, is an Electrical Engineer with 32+ years of experience in the energy sector. He has led business development in smart energy systems, grid automation, and green solutions with top firms like ABB, Siemens, and Alstom. With global expertise across Europe, South Asia, and the Middle East, Gaurav excels in leadership, operations, sales, engineering, and project management.

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