Solar PV Panels - Off Grid or On Grid
Off Grid On Grid - What does it all mean?
The first thing worth saying is that we are talking about solar photovoltaic (PV) panels and not solar water heating panels.The term grid refers to the national electricity grid. On grid means that your solar electricity system is connected to the national grid. Off grid means that the national electricity grid is not connected to your solar panel system.
Most people, both commerical and domestic, would talk primerily about on grid applications. The grid is a wonderful thing and there is not usually any sense in disconnecing yourself from it.
However in some cases the grid is not available. This is usually a remote location such as a field with a building in it. In many cases the cost of running the cable from the nearest grid transformer is enormous and the power requirements can be met with an off grid solar photovoltaic electricity system.
This system comprises a set of solar panels, battery conditioner, battery bank and invertor. The batteries give you power when the sun is not shining and the invertor gives you 240V mains electricity.
posted by Green Energy @ 16:11
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