But, what if buyers are unhappy with their ;purchase? What if the system, and total investment, was not a good match for them? Then the gains are short term.
That is why we like this how-to on picking the best PV arrays for you. With this help, you can get serious about jumping into the clean energy avalanche.
Wanting to purchase a new Solar PV system?
Confused about the different types of Solar PV systems and what to purchase?
We have all been there.
It’s tough to make a decision when there are many competing factors involved.
But the good news is:
With the right information at hand, we can make better buying decisions.
With the right information at hand, we can make better buying decisions.
This guide will help you understand the different types of Solar PV systems and what best suits you.
We start with understanding the basics of Load Analysis, AC and DC, working of the Solar PV system before moving on to classifying the Solar PV systems.
So, without further ado, let’s get started!
Basics Of AC And DC
AC (Alternating Current)
This is the type of current where the flow of electrons reverses in direction many times a second in regular intervals. It is this type of current that is used by the grid and most of the load or appliances at home.
DC(Direct Current)
This is the type of current where electron flow is unidirectional. This is is the kind of electricity produced by the solar panels and what gets stored in the battery.
The Solar Panel contains solar cells that convert the sunshine that falls on the panels to Direct Current(DC). An inverter is needed to convert Direct current(DC) generated by the solar panels / stored battery backup to usable AC Power.
Electrical Load Analysis
Electrical load refers to appliances which use Alternating current(AC) for their functioning. To perform an electrical load assessment, analyze the specific usage of each individual load to calculate the total load for the building.
Start by assessing loads that take up a lot of energy to gauge the major consumption of power. Also, initiate Energy efficient methods to reduce the power needed from Solar panels.
For more on electrical load analysis for different types of solar PV systems, please refer: Analyzing your Electric loads
Different Types Of Solar PV Systems
There are three basic types of Solar PV systems:
- Grid-Tied system
- Off-grid Solar system
- Hybrid Solar system
Grid-Tied Solar PV System
This system works only when there is grid power. In this system, the load is supplied power mainly from the Solar power.
Inverters convert DC power generated by solar panels to usable AC power. The DC to AC conversion happens as per the voltage and power quality requirements of the grid.
Power from the Solar PV either goes to the AC loads or to the grid via a bidirectional interface setup at the distribution panel.
The system requires no battery backup. If the load requires more power than the solar power generated, then grid power is used.
This setup enables the user to avail the Net Metering option to supply the extra power generated from the solar to the grid and avail credits from the DISCOMs(Distribution companies).
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