A 5kW on-grid rooftop system in Rajasthan costs between Rs. 2.5 lakh and Rs. 3.2 lakh depending on components and roof type. Here is a breakdown from a recent Premium Solar Electricals installation in Jaipur.
IB Solar 540W panels (10 panels): Rs. 1,08,000
String inverter 5kW: Rs. 42,000
Mounting structure (flat RCC roof): Rs. 26,000
DC cabling and conduits: Rs. 12,000
AC cabling and protection devices: Rs. 10,000
JVVNL net meter application: Rs. 8,000
Installation labour and commissioning: Rs. 16,000
The subsidy applies up to 3kW at Rs. 78,000 maximum for residential installations. For a 5kW system, the subsidy is capped at Rs. 78,000.
Our guaranteed yield of 4.5 units per kW per day means a 5kW system generates approximately 675 units per month. At Rs. 7 per unit: Rs. 4,725 per month in savings.
Payback period after subsidy: Rs. 1,94,000 divided by Rs. 56,700 annual savings equals 3.4 years.
Twenty-five-year total savings: approximately Rs. 14.2 lakh, before accounting for the annual 3 to 4 percent rise in electricity tariffs.
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