Updated: Jun 24
The most common question that homeowners have regarding solar PV systems is: "Kaya ba nyan ang aircon, ref, etc.?"
To answer that question, it is important to first know about the two basic types of solar PV systems which are on-grid/grid-tied systems and off-grid/standalone systems.
• On-grid or grid-tied solar PV systems are connected in parallel with your utility grid (Meralco, etc.). This means that if your solar PV system cannot meet your electricity consumption, it can simply just get the deficit from the grid. Therefore, with on-grid systems, you would not need to worry about this question at all. Another good thing with on-grid solar PV systems is that this is done automatically for you. They can run seamlessly by themselves.
• Off-grid or standalone solar PV systems, on the other hand, are not connected anymore with your utility grid. It serves as your only source of power. With this type of system, it would be essential for your installer to do the necessary calculations to make sure that your solar PV system would be able to supply power to all of your appliances. This may require oversizing the system to supply for occasions where you will use your large appliances at the same time.
Engr. Jet Andal has 6 years of experience in the design and installation of residential, commercial and utility-scale solar PV systems. Together, and with the use of solar energy, let us help make the world a better place. You can click here to read all of our other blogs. For aspiring solar PV engineers, you can also check out his Solar PV Engineering Ebook on Amazon on this link.