FAQ | ON-GRID SYSTEM WORKING | SIZING |
What is Hybrid Solar System ?
Hybrid solar systems generate power in the same way as a common grid-tie solar system but use special hybrid inverters and batteries to store energy for later use. This ability to store energy enables most hybrid systems to also operate as a backup power supply during a blackout, similar to a UPS system.
Where Hybrid Systems are recommended ?
Hybrid systems are similar to On-Grid systems so these systems are also recommended for those areas where power cuts are very seldom as this system also requires AC sensing to run the unit but during power cut the isolated emergency loads can be powered and during this period there is no export of power to the grid.
Can we get power during power cuts ?
Yes, but only those load which you want to run in emergency but during power cut there will be no export of power for safety purpose.
Where these systems can be installed ?
In homes, Shops, Religious places, Schools, Colleges, Petrol Pumps and any other building where Grid power is available
What are the benefits of On-Grid System
System almost saves more than 80% in billing cycle.
System runs during day time and night time as per battery capacity.
Exports excess power to the grid and excess units are added in next billing cycle.
It has long life but battery cost is reoccurring.
What are the limitation of On-Grid System
Suitable for those areas where power cuts are seldom
System has no Batteries for storage so the cost of system is high
System shuts down during power cuts for safety purpose but priority load is powered by battery bank
LET US UNDERSTAND HOW HYBRID SYSTEM WORKS
PARTS OF ON-GRID SYSTEM
CASE - 3
CASE - 4
CASE - 5
HOW TO SIZE ON-GRID SYSTEM STEP BY STEP FAQ
What is the maximum capacity in (KW) system is recommended for my building ?
On-Grid system are installed with 80% capacity of the consumer's total sanctioned load.
For Example : If the total sanctioned load of the consumer is 10 KW then 8 KW would be the maximum capacity consumer can install so consumer can install from minimum of 1kw -8KW as per roof top available.
How can i reduce maximum bill charges with perfect sizing ?
If you are living in the same building for at least 1 or 2 years then we can check the annual consumption in the electric bills in consumption history in KWh of the last 12 months or the data can be requested from your distributor.Now divide total annual consumption with 12 months and then again divide with 30 days. we will get per day average consumption.
For example : January 230 units , February 250 units, March 290 units, April 550 units, May 570 units, June 580 units, July 540 units, August 380 units, September 350 units, October 300 units, November 250 units, December 210 units.
Total annual consumption : 230 +250+290+550+570+580+540+380+350+300+250+210 = 4500 units
average per month units : 4500 /12= 375 units
average per day units : 375/30= 12.5 or 13 units per day average
Solar system produces 3.5 units/ KW | 4 units /KW | 5 units / KW | 6 units /KW (depending upon quality and efficiency of system)
In above example let us take 5 units/KW
System Capacity would be 13 units / 5 units = 2.6 KW so we can go for 3 KW solar on grid roof top
What is the total area required for system ?
It requires 110 Sq feet or 10 Sq meters of area per KW. It mean 1 KW system requires 110 Sq feet or 10 Sq meters of area.