Panel, inverter and battery technologies compared, with 2026 price ranges installed in Ladakh.
Panels
TOPCon bifacial Standard
HJT bifacial Upgrade
Mono PERC
Cell efficiency
24.5–25.5%
Up to 25.6%
21–22%
Module (panel) efficiency
22.5–23.4%
Up to 23.1%
20.5–21.5%
Heat loss (temp. coefficient)
−0.28 to −0.30 %/°C
−0.24 to −0.26 %/°C
−0.34 to −0.40 %/°C
Rear-side output (bifaciality)
≈80%
86–91%
None or ≈70%
Ageing (year 1 / per year)
≈1% / 0.35–0.4%
≈1% / 0.3%
≈2% / 0.5–0.7%
Warranty
12 yr product / 30 yr power
15 yr product / 30 yr power (≥90.3% at yr 30)
10–12 / 25–27 yr
Subsidy-eligible (DCR)
Yes
Yes
Being phased out
Installed, home, per kW
₹60,000–78,000
₹68,000–90,000
₹55,000–65,000
Inverters
Efficiency
3 kW
5 kW
On-grid string
97–98.5%
₹18–35k
₹28–50k
Hybrid (grid + battery)
95–97.5%
₹40–70k
₹60k–1 lakh
Off-grid / PCU
85–94%
₹25–45k
₹40–65k
Microinverter
≈97%
₹48–72k
≈₹0.8–1.2 lakh
Batteries
At −20 °C
Cycles
₹ per kWh
Sodium-ionPreferred
Up to ≈90%; charges below 0 °C
3,000–5,000
Falling as Indian production scales
LFP lithium
Needs heated enclosure
4,000–6,000
₹18,500–27,000
Lead-acid
≈Half capacity
300–1,500
₹8,000–10,000
Total system cost (before subsidy, installed in Ladakh)
TOPCon bifacial
HJT bifacial
5 kW home, on-grid
₹3.00–3.90 lakh
₹3.40–4.50 lakh
25 kW hotel, on-grid
₹12.8–16.6 lakh
₹14.5–19.1 lakh
5 kW + 10 kWh off-grid home (sodium-ion)
₹3.95–5.45 lakh
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Our price commitment
High-efficiency technology at a highly competitive price. Bring any written quote and we will compare it with ours line by line — panel, inverter, battery, warranty and service.
Cell efficiency is measured on a single solar cell; module efficiency is for the finished panel, after the gaps between cells, glass and frame — always compare panels on module efficiency. In Ladakh, rear-side gain from snow and pale ground adds 6–12% to HJT output, so a 23.1% HJT panel delivers energy comparable to a 24.5–25.9% single-sided panel. Indicative 2026 ranges, including GST and Ladakh transport. Every Odzer battery sits in a solar-passive enclosure designed by our civil engineering team.