Solar Module

Bifacial modules produce solar power from both sides of the panel. This is based on something called the ‘albedo’ effect, where a light coloured floor or ground reflects enough light to generate electricity through the reverse side of the bi-facial solar panel. Thus, these panels can generate more power than other panels in the right conditions.

Mono-perc solar panels have a passivated emitter & and rear cell and produce from a single side.

To estimate how much electricity your solar system can generate in a day, you need a few key pieces of information:

The total DC capacity of your solar system (in kW)

The average number of peak sunlight hours in your area (also called solar irradiation)

Just multiply your system size by the peak sunlight hours to get the theoretical daily generation.
For example, if you have a 3 kW system and your area gets 5 hours of good sunlight daily, then:

3 kW × 5 hours = 15 units (kWh) per day (theoretical)

However, in real-world conditions, solar systems usually operate at about 78% to 80% efficiency due to energy losses (from wiring, inverter, dust on panels, etc.).

So, you can expect around 20% less generation than the theoretical figure.
Using the example above, the actual generation would be about:

Even for the same wattage (Wp), TOPCon-based solar panels can perform better (or proudce more solar power). This is due to the better efficient solar cells used and lower degradation levels. On an average it is said that TOPCon-based modules can produce 5% extra generation than mono-perc based solar modules.

Now, MNRE has made this process more convenient. Now the PM Surya Ghar Portal allows you to check details of each vendor like the number of solar projects they have installed. You can also find out which companies have installed the highest number of solar panels in your area. You just need to go the portal, go to the empanelled vendors and feed in your local discom name and your city, and the portal will give you the details?