What is Solar Energy & How Does it Work to Power Your Home?

What is Solar Energy?

  • Out of all the other renewable energy, solar is one of the cheapest.
  • Converting energy from the sun has no negative side effects on the environment.
  • It’s easy to install on an individual level.
  • It’s modular. Meaning you can add the capacity of your system at a later time.
  • Malaysia is a tropical country with sunlight all year round.

The Main Components of a Solar Energy System

  1. Photovoltaic (PV) Panels
  2. Solar Inverter
  3. Net Energy Metering (NEM) meter

How Photovoltaic (PV) Solar Panels Work

  1. These photons hit electrons lose in a photovoltaic cell.
  2. The loose electron will move towards the N-Type side of the cell and the hole will move towards the P-Type side.
  3. By connecting an external wire to complete a circuit creates a pathway for the electrons to flow to fill the holes on the other side, thus completing an electrical circuit and generating electricity.

Types of Solar PV Panels

  • Monocrystalline (better efficiency, 450 W capacity but expensive)
  • Polycrystalline (lower efficiency, 350 W capacity but cheaper)

What is a Solar Inverter

What is Net Energy Metering (NEM)?

When You Consume More Energy Than Your PV is Generating

When Your PV Generates More Energy Than What You’re Consuming

  • Since you export more than you import, you’ll pay nothing to TNB.
  • The excess exported energy will be carried forward and offset your next billing for a maximum carry forward of 24 months.

The Additional NEM Meter

Summary

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