Solar Panels Ki Life Kitni Hoti Hai?
Yeh sabse common sawaal hai jo log solar lagwane se pehle poochhte hain — aur iska jawab bahut encouraging hai!
Solar Panel Lifespan
- Good quality panels: 25–30 saal
- Inverter: 10–15 saal (ek baar replace karna pad sakta hai)
- Batteries (agar lagayi hain): 7–10 saal
- Mounting structure: 25+ saal
Degradation Kya Hota Hai?
Panels hamesha utni hi bijli nahi dete. Har saal thodi efficiency kam hoti hai — ise degradation kehte hain.
- Pehle saal: ~2% degradation
- Baad ke saalon mein: 0.5–0.7%/year
- 25 saal baad bhi panel 80% efficiency par kaam karta hai
Example: Aaj 3 kW panel 12 units/day deta hai. 25 saal baad 9.6 units/day dega — phir bhi bahut useful!
Warranty Kya Milti Hai?
| Warranty Type | Duration | Kya Cover Hota Hai |
|---|---|---|
| Performance Warranty | 25–30 saal | 80–90% output guarantee |
| Product Warranty | 10–12 saal | Manufacturing defects |
| Inverter Warranty | 5–10 saal | Complete inverter replacement |
| Installation Warranty | 5 saal | Workmanship issues |
Maintenance Kitna Karna Padta Hai?
Solar panels low maintenance hote hain. Bas yeh karo:
- Monthly: Panels clean karo (paani se dhona kaafi hai)
- Yearly: Electrician se checkup karwao
- 5 saal mein: Full system inspection
Annual maintenance contract (AMC) typically ₹3,000–8,000/year mein milta hai.
India Ke Mausam Mein Solar Kaisa Kaam Karta Hai?
- Garmi: Zyada sunlight = zyada bijli ✓
- Baarish: Thoda kam, par panels bhi saaf ho jaate hain ✓
- Clouds: Diffused light se bhi kuch bijli banti hai ✓
- Sardi: Dhoop kam hours, par panels cooler mein better efficiency ✓