A solar plant is not "install and forget" — especially in Rajasthan, where dust alone can quietly steal a quarter of your generation. Here's what maintenance actually costs in 2026, and whether an AMC is worth it.
The dust problem, quantified
Rajasthan's dry air and dust storms coat panels fast. A month of accumulated dust cuts generation by 15–25%. On a 5 kW plant generating 22 units/day, that's ₹1,000+ lost every month. Bird droppings, leaves and construction dust add localized hot spots that can permanently damage cells.
What AMC costs in 2026
| Plant Size | Annual AMC (indicative) |
|---|---|
| 1 – 3 kW | ₹3,000 – ₹6,000 |
| 5 kW | ₹7,500 – ₹12,000 |
| 8 – 10 kW | ₹12,000 – ₹20,000 |
Standard ballpark: ₹1,500–2,500 per kW per year, depending on roof access and cleaning frequency.
What a good AMC includes
- Panel cleaning — monthly or quarterly (Rajasthan needs at least quarterly, monthly in summer)
- Electrical checks — cable insulation, MC4 joints, earthing resistance, ACDB/DCDB health
- Structure inspection — rust, bolt torque, after-storm checks
- Inverter service — firmware updates, fan/filter cleaning, error log review
- Generation audit — a monthly report comparing actual vs expected output
- Priority support — typically 24–48 hour response for breakdowns
Is AMC worth it? The math says yes
On a 5 kW plant, AMC costs ≈ ₹10,000/year but protects ≈ ₹60,000/year of generation. Even if AMC recovers just the 15–25% dust loss, it returns 6–10× its cost — before counting avoided repairs. An inverter failure without support can cost ₹25,000+ and months of lost generation.
DIY vs professional cleaning
You can clean low, easily accessible panels yourself — early morning, soft water, soft sponge, never detergents or hard brushes. But high roofs, commercial plants and post-storm inspections are genuinely risky without training. Falling from a roof costs more than 20 years of AMC.
5 signs your plant needs attention now
- Inverter app shows a sudden output drop on clear days
- Visible dust film, bird droppings or leaf accumulation
- Error codes on the inverter display
- Hot/cracked looking cells or discoloured panel areas
- Rust on structure joints or loose cables after storms
Not sure your plant is healthy? WhatsApp us a photo of your inverter screen and panels — we'll tell you honestly whether it needs a visit.