On-grid
On-grid solar systems are system that create power then the power grid is available and so, they have to connect to the grid in order to work. Any excess power that is generated can be sent back to the grid in order to receive credit that can be used.
The benefit of choosing this is that they are a simple system that is cost efficient to install while they take a very short amount of time to offset bills. However, if there is a grid outage, no power is provided.
However, they are simple to install and because they are cost-effective it means that they will pay for themselves quickly and so, they are a good choice for those looking to reduce their carbon footprint as well as bills.
Hybrid
Hybrid brings with it the benefits that come with storage and on-grid connections. These systems provide owners with the ability store power that can then be used when they need such as at times where tariffs are high or when there is a power outage, providing they have the correct system. Owners will also have the ability to send all excess power to the grid for a feed in tariff.
Off-grid
Where there is no grid connection available, off-grid systems offer a feasible solution but the systems are expensive and extremely complex. So, where there is no grid available, families can lead normal lives through the use of an off-grid system. They are expensive when compared to on-grid systems but things are changing because these once, almost in-accessible systems are now available at the same price as an on-grid 5kW system would have cost six years ago.
Conclusion
At this moment in time, off-grid systems are not a cost effective solution, particularly if you have a grid connection available and so, a grid system will deliver a more impressive return on investment.