1. Solar system kya hota hai?

A solar system mainly consists of:

  1. Solar Panel – sunlight ko DC electricity mein convert karta hai.
  2. Solar Structure – panels ko roof/ground par support karta hai.
  3. Inverter – DC electricity ko AC electricity mein convert karta hai.
  4. DC/AC cables – electricity ko carry karte hain.
  5. MC4 connectors – solar cables ko connect karte hain.
  6. Earthing system – electrical safety ke liye.
  7. Protection devices – DC/AC protection ke liye.

2. Solar Structure kya hota hai?

Solar structure ek metal framework hota hai jiske upar solar panels install kiye jaate hain.

Common materials:

  • GI (Galvanized Iron) structure
  • Aluminium structure
  • Mild Steel with suitable protective coating

Structure mein generally:

  • Main support
  • Rails
  • Legs/columns
  • Brackets
  • Clamps
  • Nuts & bolts
  • Base plates

use hote hain.

3. Measurement kaise lete hain?

Panel fitting se pehle site ki measurement important hai.

Important measurements

Length × Width = Available Area

Example:

Roof length = 20 ft
Roof width = 15 ft

Area:

20 × 15 = 300 sq.ft

Phir panel dimensions aur required walking/maintenance space ko consider karke panel layout banaya jata hai.

4. Solar Panel ki measurement

Example ke liye maan lo ek panel:

Length = 2 m
Width = 1 m

Panel area:

2 × 1 = 2 m²

Agar 10 panels hain:

10 × 2 = 20 m²

⚠️ Actual panel dimensions panel ke model ke according different ho sakte hain, isliye installation se pehle datasheet/nameplate check karna chahiye.

5. Kitne panels fit honge?

Basic calculation:

Available area ÷ Panel area

Lekin sirf area divide karna enough nahi hai. Isme:

  • panel spacing
  • structure spacing
  • maintenance walkway
  • roof edges
  • shadows
  • mounting orientation

bhi consider karna hota hai.

Example

Available usable area = 40 m²
One panel = 2 m²

Theoretical number:

40 ÷ 2 = 20 panels

Lekin practical layout mein 20 panels fit honge hi, ye zaroori nahi hai.

6. Solar Structure ka layout

Panel installation se pehle decide karte hain:

Panel → Rail → Structure → Base

Simple arrangement:

       SOLAR PANEL
   ┌─────────────────┐
   │                 │
   │     PANEL       │
   │                 │
   └─────────────────┘
      ▲           ▲
   Clamp         Clamp
      │           │
═══════════════════════
       Mounting Rail
          │     │
          │     │
        Structure
          │     │
       Base/Foundation

7. Panel angle

Solar panel ko appropriate tilt angle par install kiya jata hai so that it receives useful sunlight.

India mein angle site ke latitude, roof condition, system design aur project requirements ke according decide kiya jata hai.

Isliye ek fixed angle har location ke liye correct nahi hota.

8. Panel direction

India mein fixed rooftop solar installations commonly south-facing orientation ko consider karte hain, but exact orientation site conditions ke according design ki jaati hai.

Nearby:

  • building
  • tree
  • water tank
  • tower
  • wall

se shadow aa rahi ho to panel output reduce ho sakta hai.

9. Panel fitting ka basic process

Step 1 – Site inspection

Roof ko check karo:

  • available area
  • roof condition
  • obstacles
  • shadow
  • access
  • drainage