Solarium Green Energy LLP. Field Service Engineer Interview Questions and Answers

There are three main types of solar panels available in the market: monocrystalline, polycrystalline, and thin-film. Among these, monocrystalline panels are considered the most efficient.

• Monocrystalline solar panels: made from single-crystal silicon, highest efficiency and longest lifespan

• Polycrystalline solar panels: made from multiple silicon crystals, slightly lower efficiency than monocrystalline

• Thin-film solar pan...read more

A single line diagram of a solar sub system shows the flow of electricity from the solar panels to the inverter and then to the load.

• Solar panels are connected in series or parallel to form an array

• The array is connected to a charge controller to regulate the voltage and current

• The charge controller is connected to the inverter which converts DC to AC

• The inverter is connected to the load to power electrical devices