If we want to move away from conventional source of electricity to solar,
find out the cost of solar panels required according to your daily electricity
consumption and after how many years will be able to recover their cost.
Solution:
Here is an example that may resolve your query :
1.) The average monthly electricity consumption of a 2BHK in Bengaluru is around 200 units.This means, you would need atleast 1.52 KW Solar PV system that produces around 230-250 units per month, depending on the weather conditions.
2.) This system will cost around Rs 2 lakh. There are no recurring costs as the life of the panels is 25 years and you do not need batteries to store the energy as you are directly connected to the grid.
Now, consider this: A 2 KW of solar PV can produce 10 units per sunny day , meaning 3,000 units per year.
Assuming you consume 200 units, you are consuming 2,400 kWh per year, an excess of 600 units.
The average cost of electric ity is Rs 3.8 per unit (Bescom charges any thing between Rs 2 -Rs 5.50 per unit, depending on your usage).
So, you are saving Rs 9,120 as electricity bill and making Rs 5,736 from selling the excess to Bescom for Rs 9.56 per unit. Meaning, an annual saving of Rs 14,856. At At this rate, it will take you 13.4 years to simply break-even your initial capital investment of
Rs. 2 lakhs.
Here is an example that may resolve your query :
1.) The average monthly electricity consumption of a 2BHK in Bengaluru is around 200 units.This means, you would need atleast 1.52 KW Solar PV system that produces around 230-250 units per month, depending on the weather conditions.
2.) This system will cost around Rs 2 lakh. There are no recurring costs as the life of the panels is 25 years and you do not need batteries to store the energy as you are directly connected to the grid.
Now, consider this: A 2 KW of solar PV can produce 10 units per sunny day , meaning 3,000 units per year.
Assuming you consume 200 units, you are consuming 2,400 kWh per year, an excess of 600 units.
The average cost of electric ity is Rs 3.8 per unit (Bescom charges any thing between Rs 2 -Rs 5.50 per unit, depending on your usage).
So, you are saving Rs 9,120 as electricity bill and making Rs 5,736 from selling the excess to Bescom for Rs 9.56 per unit. Meaning, an annual saving of Rs 14,856. At At this rate, it will take you 13.4 years to simply break-even your initial capital investment of
Rs. 2 lakhs.