{"id":5882,"date":"2025-08-29T18:29:45","date_gmt":"2025-08-29T12:59:45","guid":{"rendered":"https:\/\/www.solarsquare.in\/blog\/?p=5882"},"modified":"2026-01-08T22:59:25","modified_gmt":"2026-01-08T17:29:25","slug":"100kw-solar-plant-cost","status":"publish","type":"post","link":"https:\/\/www.solarsquare.in\/blog\/100kw-solar-plant-cost\/","title":{"rendered":"What\u2019s the 100 kW Solar Panel System Price in India in 2025? Subsidy and ROI Calculations Included"},"content":{"rendered":"

The 100 kW solar panel system price in India in 2025 for on-grid DCR subsidy projects ranges between ~Rs. 40,000* to ~Rs. 45,000* per kW + 13.8% GST, after you receive a subsidy. Simply put, a 100 kW on-grid solar panel system in India can cost you somewhere between ~Rs. 40 lakh* to ~Rs. 45 lakh* + 13.8% GST after you avail of a subsidy under the PM Surya Ghar Muft Bijli Yojana.<\/span><\/p>\n

*Please note<\/i><\/b>: <\/span>The above-mentioned 100 kW solar system price list<\/span> is indicative as of 28th August 2025 for the SolarSquare\u2019s Blue 4-8ft variant. The final cost of <\/span>rooftop solar for housing societies<\/b><\/a> depends on your DISCOM charges, product variant opted for, panel type, inverter type, mounting structure height, type of after-sales service, savings guarantee, roof height, number of floors in your society, etc. Solar plate prices are subject to chang<\/span>e. Also, DCR modules are made-in-India solar panels that are eligible for a subsidy. The final 100 kW solar system installation cost is much higher for non-DCR projects, as they\u2019re not eligible for a subsidy.<\/span><\/p>\n

Most housing societies in India opt for<\/span> bifacial solar panels<\/b><\/a> with mono-PERC half-cut<\/span> solar PV cells<\/b><\/a> because these modules are not only eligible for a subsidy but are also among the<\/span> most efficient solar panels<\/b><\/a>, capable of converting up to 22.5% of the sunlight they receive into<\/span> solar electricity<\/b><\/a>.\u00a0<\/span><\/p>\n

The three main types of solar systems you\u2019ll come across when exploring your options in India are <\/span>on-grid solar systems<\/b><\/a>, <\/span>off-grid solar systems<\/b><\/a>, and <\/span>hybrid solar systems<\/b><\/a>. Out of these, installing a 100 kW on-grid rooftop solar system is most beneficial for housing societies because it offers a stunning XIRR (rate of return) of 67% and can save ~Rs. 8,13,10,194* (eight crore, thirteen lakh, 10 thousand, one hundred, and 94 rupees) in its entire life.<\/span><\/p>\n

*Please note<\/i><\/b>: <\/span>We\u2019ve considered the plant annual degradation rate of 0.55% after the first year, the electricity tariff of Rs. 21 per unit, an annual tariff hike of 2%, and an insurance cost of 0.20% to calculate the lifetime savings from a 100 kW solar panel system.<\/span><\/p>\n

In this blog, we\u2019ll take you through the 100 kW solar system price list for all three <\/span>types of solar systems<\/b><\/a>, how the three types of systems differ, the eligibility criteria to avail a 100 kW solar system subsidy in India, and the 100 kW solar system installation cost in India vs the solar savings the plant will generate in 25 years of its life.<\/span><\/p>\n

<\/span>TL;DR Summary Box: 100 kW Solar System Price List in India in 2025<\/b><\/span><\/h2>\n

A 100 kW solar panel system, capable of generating 1.35 lakh* to 1.4 lakh* units of electricity annually, varies in cost based on whether it\u2019s an on-grid system without lithium batteries or an off-grid or hybrid system with batteries.\u00a0<\/span><\/p>\n

*Please note<\/i><\/b>: The number of units generated by a 100 kW solar panel system listed above is indicative. The actual units generated can vary based on the pollution level in your city, peak sunshine hours your roof receives, shadows from surrounding objects, temperature and weather conditions in your city, tilt angle and efficiency of the solar panels used, inverter technology used, etc.<\/span><\/p>\n

Let\u2019s check out an overview of the 100 kW solar system installation cost in India for all three types:<\/span><\/p>\n\n\n\n\n\n\n
Types of a 100 kW Solar System<\/b><\/td>\nDoes the Government Offer any Subsidy?<\/b><\/td>\n100 kW Solar Panel System Price in India in 2025*<\/b><\/td>\n<\/tr>\n
100 kW on-grid solar system<\/span><\/td>\nYes<\/span><\/td>\n~Rs. 40 lakh to ~Rs. 45 lakh + 13.8%<\/span><\/td>\n<\/tr>\n
100 kW off-grid solar system<\/span><\/td>\nNo\u00a0<\/span><\/td>\nStarts from ~Rs. 70 lakh<\/span><\/td>\n<\/tr>\n
100 kW hybrid solar system<\/span><\/td>\nYes<\/span><\/td>\nStarts from ~ Rs. 80 lakh<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

*Please note<\/i><\/b>: <\/span>The above-mentioned 100 kW solar system price list<\/span> is indicative as of 28th August 2025 for the SolarSquare\u2019s Blue 4-8ft variant. The final <\/span>100 kW rooftop solar system price in India<\/span> depends on your DISCOM charges, product variant opted for, panel type, inverter type, mounting structure height, type of after-sales service, savings guarantee, roof height, number of floors in your society, etc. The on-grid solar panel prices listed above are for DCR subsidy projects only. Also, SolarSquare does not install off-grid or hybrid solar systems. The prices for off-grid and hybrid PV systems mentioned above are based on standard market estimates.\u00a0\u00a0<\/span><\/p>\n

Here are the main topics we\u2019ve covered in this blog in detail:<\/span><\/p>\n\n\n\n\n\n\n\n\n\n
Main Topics<\/b><\/td>\nQuick Takeaways<\/b><\/td>\n<\/tr>\n
100 kW solar panel system price in India in 2025\u00a0<\/span><\/td>\n\n
    \n
  • On-grid systems<\/b>: ~Rs. 40,000* to 45,000* per kW + 13.8% GST for DCR projects.\u00a0<\/span><\/li>\n
  • Off-grid systems<\/b>: Starts from ~Rs. 70 lakh*<\/span><\/li>\n
  • Hybrid systems<\/b>: Starts from ~Rs. 80 lakh*<\/span><\/li>\n<\/ul>\n<\/td>\n<\/tr>\n
Factors affecting the final 100 kW rooftop solar system price in India<\/span><\/td>\nThe multiple factors include the type of solar system, solar panels, and solar inverter chosen. They can also vary based on your DISCOM charges, the height of your mounting structure, and the number of floors in your society.<\/span><\/td>\n<\/tr>\n
What\u2019s the 100 kW solar system subsidy in India?<\/span><\/td>\nRs. 18 lakh<\/span><\/p>\n

Group housing societies (GHS) receive a subsidy of Rs. 18,000 per kW, up to 500 kW, for common facilities when installing an on-grid rooftop solar system under the PM Surya Ghar Muft Bijli Yojana.<\/span><\/td>\n<\/tr>\n

What are the types of a 100 kW solar system in India?<\/span><\/td>\nOn-grid, off-grid, and hybrid<\/span><\/td>\n<\/tr>\n
What are the benefits of a 100 kW solar panel system?<\/span><\/td>\nIt offsets 25,87,200 kgs of carbon dioxide from the air and reduces the common area electricity bill for your housing society.\u00a0<\/span><\/td>\n<\/tr>\n
Lifetime savings from a 100 kW solar panel system with SolarSquare<\/span><\/td>\n~Rs. 8,13,10,194 (eight crore, thirteen lakh, 10 thousand, one hundred, and 94 rupees)**<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

*Please note<\/i><\/b>: <\/span>The above-mentioned 100 kW <\/span>solar panel system price in India for on-grid systems <\/span>is indicative as of 28th August 2025 for the SolarSquare\u2019s Blue 4-8ft variant. The final <\/span>100 kW rooftop solar system price in India<\/span> depends on your DISCOM charges, product variant opted for, panel type, inverter type, mounting structure height, type of after-sales service, savings guarantee, roof height, number of floors in your society, etc. The on-grid solar panel prices listed above are for DCR subsidy projects only. Also, SolarSquare does not install off-grid or hybrid solar systems. The prices for off-grid and hybrid PV systems mentioned above are based on standard market estimates.\u00a0\u00a0<\/span><\/p>\n

**Please note<\/i><\/b>: We\u2019ve considered the plant annual degradation rate of 0.55% after the first year, the electricity tariff of Rs. 21 per unit, an annual tariff hike of 2%, and an insurance cost of 0.20% to calculate the lifetime savings from a 100 kW solar panel system.<\/span><\/p>\n

<\/span>What\u2019s the 100 kW Solar Panel System Price in India with Subsidy?<\/b><\/span><\/h2>\n

The Indian government offers housing societies installing on-grid rooftop solar systems a<\/span> subsidy under the PM Surya Ghar Muft Bijli Yojana<\/b><\/a> when they opt for made-in-India DCR modules. <\/span>The cost for 100 kW solar systems under DCR projects ranges between ~Rs. 40,000* to 45,000* per kW + 13.8% GST after a subsidy.\u00a0<\/span><\/p>\n

Here\u2019s the final 100 kW solar system installation cost in India in 2025 for all three types of solar systems, alongside details on how much subsidy is offered:<\/span><\/p>\n\n\n\n\n\n\n
Type of Solar System<\/b><\/td>\nHow Much Subsidy is Offered to Housing Societies?<\/b><\/td>\n100 kW Solar System Price List in India in 2025*<\/b><\/td>\n<\/tr>\n
100 kW solar panel system price in India with subsidy for on-grid rooftop systems<\/span><\/td>\nRs. 18 lakh<\/span><\/td>\n~Rs. 40 lakh to ~Rs. 45 lakh + 13.8%<\/span><\/td>\n<\/tr>\n
100 kW off-grid solar system price in India<\/span><\/td>\nNo subsidy offered for off-grid solar systems<\/span><\/td>\nStarts from ~Rs. 70 lakh<\/span><\/td>\n<\/tr>\n
100 kW hybrid solar system price in India<\/span><\/td>\nRs. 18 lakh<\/span><\/td>\nStarts from ~Rs. 80 lakh<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

*Please note<\/i><\/b>: <\/span>The above-mentioned 100 kW <\/span>solar panel system price in India for on-grid systems <\/span>is indicative as of 28th August 2025 for the SolarSquare\u2019s Blue 4-8ft variant. The final 100 kW <\/span>rooftop solar system price in India<\/span> depends on your DISCOM charges, product variant opted for, panel type, inverter type, mounting structure height, type of after-sales service, savings guarantee, roof height, number of floors in your society, etc. The on-grid solar plate prices listed above are for DCR subsidy projects only. Also, SolarSquare does not install off-grid or hybrid solar systems. The aforementioned 100 kW solar system price list for off-grid and hybrid systems is based on standard market estimates.\u00a0\u00a0<\/span><\/p>\n

<\/span>What\u2019s the 100 kW Solar System Subsidy in India?<\/b><\/span><\/h2>\n

Group housing societies receive a subsidy assistance of Rs. 18,000 per kW, up to 500 kW for common facilities under the PM Surya Ghar Muft Bijli Yojana. But, do all housing societies receive this financial help? No. Certain conditions must be met for housing societies to be considered eligible for the subsidy.\u00a0\u00a0<\/span><\/p>\n

Let\u2019s check out the conditions that decide whether or not you’re eligible for the subsidy assistance offered by the central government:\u00a0\u00a0<\/span><\/p>\n\n\n\n\n\n
Factors that Qualify Housing Societies for a Subsidy\u00a0<\/b><\/td>\nFactors that Disqualify Housing Societies for a Subsidy\u00a0<\/b><\/td>\n<\/tr>\n
The electricity meter is in the name of the housing society.<\/span><\/td>\nThe electricity meter is in the name of the builder.<\/span><\/td>\n<\/tr>\n
The on-grid solar system being installed on the society\u2019s rooftop is for residential purposes only.<\/span><\/td>\nThe solar system being installed is:<\/span><\/p>\n