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SOLAR SYSTEMS

Types of Solar Systems

Solar PV Systems - ON Grid / Grid Tied

A grid-connected photovoltaic power system is an electricity generating solar PV power system but connected to the utility grid.

A grid-connected PV system consists of solar panels, one or several inverters and grid connect equipment.

The main purpose of using grid-tied system is to reduce the consumption of electricity from the grid and save your costs in the long term.

Solar PV Systems - OFF Grid / Standalone

These systems are by definition isolated from the grid and must work on their own for a number of days – typically installed in rural areas, islands or for small lighting purposes.

Off-grid solar systems are indeed the most expensive ones. They are only profitable and necessary when no grid is available or if you need to feed only small power loads.

Solar PV Systems - Hybrid

Hybrid systems are still connected to the grid, but they include one very important feature, a battery bank. It is necessary to add a battery bank that allows the system to store energy and supply it in a stable way when needed.

In hybrid systems there are two types of loads:

Critical loads
Non-essential loads

Critical loads are represented by electrical devices that require back up when the power grid fails. These loads need to be separated from other loads and are connected to a different sub-panel.

Non-essential loads are electrical devices connected to the main panel that will not be backed up during the grid failure.