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Geyser vs Solar Water Heater
Solar water heater (200L) costs ₹25-45k installed. Saves 60-70% of geyser electricity. 4-5 year payback in sun-rich India. Backup electric element handles cloudy days.
2 kW
1.5 hrs
₹8/kWh
₹35,000
Solar payback
4.0 yrs
Annual geyser cost₹8,760
15-yr savings (post payback)₹96,400
FAQ
Solar water heater needs roof?
Yes — south-facing, no shade, 6+ hrs sun daily. Tier-2 cities with independent houses are best fit.
What about cloudy days?
Modern systems have electric backup element. Net annual savings: 65-75% vs pure geyser.
Maintenance?
Annual descaling ₹500-1,000. Tank lasts 15-20 years; collector 20-25.