Rooftop Space Calculation — Kitni Chhat Chahiye
1 kW se 10 kW rooftop solar lagwane ke liye kitne square feet space chahiye, south-facing angle, water tank shadow aur elevated structure guide Durg-Bhilai ke liye.
Seedha jawab
Thumb rule ke hisaab se 1 kW solar panels lagwane ke liye lagbhag 80 se 100 square feet shadow-free chhat ki zaroorat hoti hai. Yaani 3 kW system ke liye 250–300 sq. ft., 5 kW ke liye 450–500 sq. ft. aur 6 kW ke liye lagbhag 500–600 sq. ft. clear terrace space required hoti hai. Chhat ka South direction open hona sabse beneficial hota hai.
Durg aur Bhilai ke zyadatar independent houses mein flat RCC roofs hoti hain. Yahan space ke alawa sabse zaroori cheez hoti hai shading analysis — paani ki tanki, staircase room (mumty) ya padosi ke makan ki shadow panels par nahi aani chahiye.
System size ke hisaab se space requirement table
| Capacity | Number of Panels (550Wp) | Usable Area Required | Approx Monthly Units |
|---|---|---|---|
| 2 kW | 4 panels | 180 – 200 sq. ft. | 250 – 300 units |
| 3 kW | 6 panels | 250 – 300 sq. ft. | 380 – 450 units |
| 4 kW | 8 panels | 350 – 400 sq. ft. | 500 – 600 units |
| 5 kW | 10 panels | 450 – 500 sq. ft. | 650 – 750 units |
| 6 kW | 12 panels | 500 – 600 sq. ft. | 800 – 900 units |
| 10 kW | 18–20 panels | 900 – 1000 sq. ft. | 1300 – 1500 units |
Direction aur tilt angle Chhattisgarh mein
India Northern Hemisphere mein hai, isliye solar panels ka face hamesha True South direction mein hona chahiye. Chhattisgarh (latitude approx. 21°N) mein panels ko 20° se 22° ke tilt angle par mount karne se saal bhar maximum sunlight capture hoti hai.
Agar roof layout ki wajah se South face possible nahi hai, toh East-West dual orientation bhi adopt kiya ja sakta hai.
Aksar poochhe jaane waale sawaal
- Kya thodi si shadow aane se pura system band ho jata hai?
- Nahi, modern half-cut mono-PERC panels mein bypass diodes hote hain. Agar ek hisse par thodi chhaya aati hai toh baaki cells power generate karte rehte hain. Phir bhi subah 9 AM se sham 4 PM tak shadow-free area best hota hai.
- Kya sheet wali (tin-shed) chhat par solar lag sakta hai?
- Haan, tin-shed ya asbestos shed par bhi solar lagaya ja sakta hai jismein special mini-rail aluminium clamps use kiye jaate hain bina kisi leak ke.
Apni chhat ka exact shadow pattern aur usable space check karwane ke liye aap humari local Durg-Bhilai engineering team se free site survey book kar sakte hain.