A grid-tied solar system consists of solar panels and a pv inverter. This system is mainly used to reduce the usage of electricity provided by eskom. This solution requires a stable grid and will not work on its own.
Inverter needs the grid to function
When grid is down /
loadshedding: inverter will shut
Power generated by solar panels
will be used to power your
Advantage: will bring your
consumption down and reduce
your electricity bills
A battery backup solution requires a connection to eskom as the grid will be used to charge the batteries. When load shedding is happening or the grid fails due to any other reason, the batteries will provide power to your house. As long as there is charge in the batteries, you will have power. Once eskom power is restored, the inverter will switch over from the batteries to eskom to power your house as well as to charge the batteries back to full load.
While grid is available, charge batteries
When grid is down / loadshedding: batteries will provide power to your appliances
No solar panels involved.
Advantage: will get rid of the inconvenience during loadshedding
The hybrid solar solution combines the benefits of solar panels as well as battery backup and using eskom simply as a backup. This system is very attractive for the residential market as well as for commercial businesses which need backup power for data centers etc.
While the sun is shining the solar panels produce power for your house and if there is excess it even charges the batteries. In the evening and during night time, the batteries will take over supplying your house. This is the most comfortable solution which helps you to save on your electricity bill and reduces carbon footprint while getting rid of the inconvenience of load shedding. Our high quality hybrid inverters have a separate connection for a generator as well.
Inverter needs batteries to function
When grid is down / loadshedding: inverter will stay on (provided your batteries have enough charge)
Power generated by solar panels will be used to power your appliances. If needs be, your batteries will assist.
Advantage: will bring your consumption down, reduce your electricity bills and keeps you going during loadshedding
Going off the grid means that all ties are cut with eskom. The system setup is basically the same as a hybrid system, just a lot more components such as solar panels and batteries. Your property's total consumption needs to be measured over a few days using an energy meter. Those values will be read out and a system according to your usage will be configured.
As this system will make you completely self-sufficient, this is the most cost-intensive solution because of the system components and additional work with assessment, design and installation costs.
Unfortunately there is a misconception of going off-grid, so that some installers sell a hybrid-system as an "off-grid" solution for an obviously cheaper price. However this is false and clients should be aware that if they receive quotes, which are surprisingly cheap, there is a reason for that. Off-Grid and Hybrid is not the same.
Be fully independent from the grid-supply
Substitute all your consumption using solar panels, sufficient amount of batteries and a generator (backup for rainy days)
Advantage: fully self-sustainable. Independent from utility provider. No more electricity bills