# Solar Systems by Size

> Compare rooftop solar systems from 1 kW to 100 kW in Indore — generation, roof space, panels, price after subsidy, savings and payback for each size.

Canonical: https://geniussolarservices.com/solar-systems

## 1 kW

A 1 kW rooftop solar system in Indore generates about 4 units a day, 122 units a month and 1,459 units a year. It uses about 2 panels of 545 W and needs roughly 90 sq ft of shadow-free roof. It qualifies for ₹30,000 PM Surya Ghar subsidy, bringing a typical price of ₹68,000–₹78,000 down to about ₹38,000–₹48,000. For a property using 80–150 units a month, it saves around ₹882 a month and pays back in about 3.9 years.

## 2 kW

A 2 kW rooftop solar system in Indore generates about 8 units a day, 243 units a month and 2,918 units a year. It uses about 4 panels of 545 W and needs roughly 180 sq ft of shadow-free roof. It qualifies for ₹60,000 PM Surya Ghar subsidy, bringing a typical price of ₹1.36 lakh–₹1.56 lakh down to about ₹76,000–₹96,000. For a property using 150–250 units a month, it saves around ₹1,630 a month and pays back in about 4.2 years.

## 3 kW

A 3 kW rooftop solar system in Indore generates about 12 units a day, 365 units a month and 4,377 units a year. It uses about 6 panels of 545 W and needs roughly 270 sq ft of shadow-free roof. It qualifies for ₹78,000 PM Surya Ghar subsidy, bringing a typical price of ₹1.74 lakh–₹2.04 lakh down to about ₹96,000–₹1.26 lakh. For a property using 250–400 units a month, it saves around ₹2,557 a month and pays back in about 3.5 years.

## 4 kW

A 4 kW rooftop solar system in Indore generates about 16 units a day, 486 units a month and 5,836 units a year. It uses about 8 panels of 545 W and needs roughly 360 sq ft of shadow-free roof. It qualifies for ₹78,000 PM Surya Ghar subsidy, bringing a typical price of ₹2.32 lakh–₹2.72 lakh down to about ₹1.54 lakh–₹1.94 lakh. For a property using 400–520 units a month, it saves around ₹3,529 a month and pays back in about 3.9 years.

## 5 kW

A 5 kW rooftop solar system in Indore generates about 20 units a day, 608 units a month and 7,295 units a year. It uses about 10 panels of 545 W and needs roughly 450 sq ft of shadow-free roof. It qualifies for ₹78,000 PM Surya Ghar subsidy, bringing a typical price of ₹2.9 lakh–₹3.4 lakh down to about ₹2.12 lakh–₹2.62 lakh. For a property using 520–700 units a month, it saves around ₹4,559 a month and pays back in about 4.2 years.

## 6 kW

A 6 kW rooftop solar system in Indore generates about 24 units a day, 730 units a month and 8,754 units a year. It uses about 12 panels of 545 W and needs roughly 540 sq ft of shadow-free roof. It qualifies for ₹78,000 PM Surya Ghar subsidy, bringing a typical price of ₹3.12 lakh–₹3.6 lakh down to about ₹2.34 lakh–₹2.82 lakh. For a property using 650–850 units a month, it saves around ₹5,471 a month and pays back in about 3.8 years.

## 8 kW

A 8 kW rooftop solar system in Indore generates about 32 units a day, 973 units a month and 11,672 units a year. It uses about 15 panels of 545 W and needs roughly 720 sq ft of shadow-free roof. It qualifies for ₹78,000 PM Surya Ghar subsidy, bringing a typical price of ₹4.16 lakh–₹4.8 lakh down to about ₹3.38 lakh–₹4.02 lakh. For a property using 850–1,100 units a month, it saves around ₹7,295 a month and pays back in about 4.1 years.

## 10 kW

A 10 kW rooftop solar system in Indore generates about 40 units a day, 1,216 units a month and 14,590 units a year. It uses about 19 panels of 545 W and needs roughly 900 sq ft of shadow-free roof. It qualifies for ₹78,000 PM Surya Ghar subsidy, bringing a typical price of ₹5.2 lakh–₹6 lakh down to about ₹4.42 lakh–₹5.22 lakh. For a property using 1,100–1,400 units a month, it saves around ₹9,119 a month and pays back in about 4.2 years.

## 15 kW

A 15 kW rooftop solar system in Indore generates about 60 units a day, 1,824 units a month and 21,885 units a year. It uses about 28 panels of 545 W and needs roughly 1,350 sq ft of shadow-free roof. Typical turnkey price is ₹5.4 lakh–₹6.6 lakh; business systems do not receive PM Surya Ghar subsidy. For a property using 1,600–2,100 units a month, it saves around ₹16,414 a month and pays back in about 3 years.

## 20 kW

A 20 kW rooftop solar system in Indore generates about 79.9 units a day, 2,432 units a month and 29,180 units a year. It uses about 37 panels of 545 W and needs roughly 1,800 sq ft of shadow-free roof. Typical turnkey price is ₹7.2 lakh–₹8.8 lakh; business systems do not receive PM Surya Ghar subsidy. For a property using 2,100–2,800 units a month, it saves around ₹21,885 a month and pays back in about 3 years.

## 25 kW

A 25 kW rooftop solar system in Indore generates about 99.9 units a day, 3,040 units a month and 36,475 units a year. It uses about 46 panels of 545 W and needs roughly 2,250 sq ft of shadow-free roof. Typical turnkey price is ₹9 lakh–₹11 lakh; business systems do not receive PM Surya Ghar subsidy. For a property using 2,800–3,500 units a month, it saves around ₹27,356 a month and pays back in about 3 years.

## 50 kW

A 50 kW rooftop solar system in Indore generates about 199.9 units a day, 6,079 units a month and 72,950 units a year. It uses about 92 panels of 545 W and needs roughly 4,500 sq ft of shadow-free roof. Typical turnkey price is ₹17 lakh–₹21 lakh; business systems do not receive PM Surya Ghar subsidy. For a property using 5,500–7,000 units a month, it saves around ₹48,633 a month and pays back in about 3.2 years.

## 100 kW

A 100 kW rooftop solar system in Indore generates about 399.7 units a day, 12,158 units a month and 1,45,900 units a year. It uses about 184 panels of 545 W and needs roughly 9,000 sq ft of shadow-free roof. Typical turnkey price is ₹34 lakh–₹42 lakh; business systems do not receive PM Surya Ghar subsidy. For a property using 11,000–14,000 units a month, it saves around ₹97,267 a month and pays back in about 3.2 years.

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**Genius Solar Services** · G-1, Swarna Palace, Plot No. 1108, Scheme No. 114, Part 1, Vijay Nagar, Near MP Gramin Bank, Indore, Madhya Pradesh 452010 · Phone +91 98267 12299, +91 78288 12299, 0731 400 4499 · geniussolarservices@gmail.com · Mon – Sat · 10:00 am – 7:00 pm
Source: https://geniussolarservices.com