The price of solar roof top per kW is given in the table. The Ministry of New and Renewal Energy gives subsidy 40% up to 3 kW and 20% from 3 kW to 10 kW. This all calculation is given only for residential consumer only. Here the size of solar plant with its cost with subsidy and without subsidy is given in the table.
Size
of solar plant 
MNRE
Current benchmark Cost 
Cost
of Plant with out subsidy 
Cost
of Plant with subsidy (
40%) 
1 kW 
Rs.47000 / kw 
Rs.47000 
Rs. 28200 
2 kW 
Rs.43000 / kw 
Rs. 86000 
Rs. 51600 
3 kW 
Rs.42000 / kw 
Rs. 1,26,000 
Rs. 75,000 
4 kW 
Rs.41000 / kw 
Rs. 1,64,000 
Rs. 1,06,600 
5 kW 
Rs.41000 / kw 
Rs. 2,05,000 
Rs. 1,39,400 
You may also like to read this article : Compare – Class A Chopper and Class B Chopper 
Financial Saving
Number of units generated per year due to solar panel as well as financial
saving due to solar panel considering flat tariff @ Rs. 8 is given for one year
as well as 25 year span.
Size of solar
plant 
Electricity
generated ( units ) 
Financial
Savings Tariff @ Rs. 8 / kWh 


Annually 
25 year 
Monthly 
Yearly 
Life time ( 25 Years ) 
1 kW 
1500 
37500 
Rs.1000 
Rs. 12,000 
Rs. 3,00,000 
2 kW 
3000 
75,000 
Rs.2000 
Rs.24,000 
Rs. 6,00,000 
3 kW 
4500 
112500 
Rs.3000 
Rs.36,000 
Rs. 9,00,000 
4 kW 
6000 
150000 
Rs.4000 
Rs.48,000 
Rs. 12,00,000 
5 kW 
7500 
187500 
Rs.5000 
Rs.60,000 
Rs. 15,00,000 
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