Install PV Solar Rooftop system and replace Existing Inverter
Replace Existing UPS charge from grid electricity by Installing PV Solar Power on your rooftop.
A inverter with 12V, 200Ah battery, which give an average 3 hours backup for 2 ceiling fan & 3 tube light. DoD 50%
To charge the battery,
Charging current 20Amp
Inverter draws average 10 Amp current from 240V supply for 5 hours
= 240V X 10A X 5 hours
= 12000Wh = 12KWh or unit
Average electricity bill Rs.6.50/- per unit
Total charging cost per day = 12 unit X Rs.6.50/- = Rs.78/-
Total charging cost per year = Rs.78 X 300 days = Rs.23,400/-
To convert this system into PV Solar Power system,
Required PV module 2 nos 200Wp, Inverter 500VA
Approx cost of system:
PV Module = 400Wp X Rs.60/- per Wp = Rs.24,000/-
Inverter = Rs.15,000/-
Mounting structure = Rs. 2,000/-
Others & Installation = Rs. 5,000/-
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Total = Rs. 46,000/-
Your First time Installation cost = Rs.46,000/-
First year saving = Rs. 23,400/-
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= Rs. 22,600/-
Second year saving = Rs. 23,400/-
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Generate Profit = Rs. 800/-
From third year to next 18 year run your system without any electricity bill.