In principle there are three types of solar photovoltaic (PV) systems. These systems are defined as follows:
The difference between this system and an Off Grid system is that the inverter used in this scenario is capable of selling back or pushing back onto the grid. In other words this inverter is an off grid inverter that can be used to power the load from the solar energy and the batteries and it can now sell the energy or push it back to the grid as well where as an off grid inverter can only power the load but not sell back to the grid.
Our Custom Designs on Solar PV solutions are done by our own in-house Solar PV Specialists. These systems can be used for your Development, Business, Farm or Mine. Depending on the size of your project we either use our brands imported from only the most renown manufacturers or we custom built to your specifications. Custom designs can be done for any system from any size up to the MW scale. Nothing is too small or too Big.
Grid-tied systems are connected to the electrical grid, and allow residents of a building to use solar energy as well as electricity from the grid. When there is no demand for energy, the solar system can send excess electricity back out into the grid for use. Grid-tied systems do not provide protection from power outages. When the electrical grid fails, grid tied systems will automatically shut off and will not continue to operate for safety reasons.
A system making use of panels to harvest solar irradiation in the form of DC power but this power is converted into AC power and pushed into the grid or load without any batteries being used.
Off-grid solar-electric systems operate independently from the local utility grid to provide electricity to a home. Off-grid systems usually incorporate a battery bank to store energy produced during the day. If you have a solar battery system as well as a solar PV system, your power will continue to work.
A system making use of solar panels to harvest solar irradiation in the form of DC power to charge the batteries. The stored energy in the batteries is then converted by an inverter into usable AC power for the house / factory / farm. The grid can also be connected to the system as a backup.
Hybrid systems is a combination of Grid Tie and Off Grid systems and can be configured to use grid energy, solar energy and battery backup. The backup battery is charged by both the grid and the solar panels. In the event of an outage, the backup battery will switch on automatically to provide backup power to the building.
This type of system is a combination of Off Grid, Grid Tie and a Grid Interactive system. It can work with or without batteries and can sell back to the grid as well. The batteries can be configured to be used like a UPS or a primary source of energy or both.