Home Inverter Running Cost: How much you pay for using it?

Home Inverter Running Cost

Is the home inverter running cost the same as the grid power tariff rate? 

Most people believe so. They have a notion that the cost of getting power from it is the same as the rate at which they consume electricity; That home inverters are economical to run; that they are a good source of getting power during power shutdowns.

They are definitely cheaper to run than the Diesel Generator, but the  cost is much higher than the tariff rate of the power grid. 

 

 

Each unit of power supplied by the home inverter actually costs roughly 1.6 times the grid rate

 

This means that if the home inverter is giving the output of 1000 W and the grid tariff is Rs. 6.5/Unit, then the cost of getting electricity produced will be Rs. 10.4 (Rs. 6.5 x 1.6) per hour. 

 

Since this is a recurring cost, over a period of time substantial cash outflow happens on running a home inverter.

 

The larger the size of the home inverter, more will be the monthly expenditure incurred.

 

The loss happens in the home inverter due to various losses associated with it.  

 

To understand the magnitude of the loss in running the home inverter, I have summarized, in the table below the expenses over a period of 25 years, (the life of PV solar systems).

 

Please note that I have ignored the cost of the batteries  as it will be required in both the PV solar system and the home inverter system.  Only the cost of electricity has been considered for simplicity, Other maintenance costs have been ignored.

The assumptions done for calculations are given in the beginning of the table.

 

table

Home Inverter Running Cost
Assumptions
Power Shutdown/Day3Hrs
Electricity Tariff Rate6.5Rs./ Unit
Elect charges escalation/yr3%P.a.
Inverter usage Rate approx (assuming 60% loss)10.4Rs./ Unit
Inverter output1000W
YearsInverter Run Hrs.Annual Increase FactorElectricity Consumed/Annum(Rs.)
11,0951.00-11388
21,0951.03-11730
31,0951.06-12082
41,0951.09-12444
51,0951.13-12817
61,0951.16-13202
71,0951.19-13598
81,0951.23-14006
91,0951.27-14426
101,0951.30-14859
111,0951.34-15305
121,0951.38-15764
131,0951.43-16237
141,0951.47-16724
151,0951.51-17225
161,0951.56-17742
171,0951.60-18274
181,0951.65-18823
191,0951.70-19387
201,0951.75-19969
211,0951.81-20568
221,0951.86-21185
231,0951.92-21821
241,0951.97-22475
251,0952.03-23149
Total Inverter hrs.27,375Total-415,200
*Negative figs. means cash outflow

1 thought on “Home Inverter Running Cost: How much you pay for using it?”

  1. Pingback: Solar Vs Home Inverter: Which Is Better? Know To Save Million Dollars | Horizon- No. 1 Branded Dealer For Lasting Solution & Peace Of Mind.

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