Designing a solar system under South African SANS regulations:

1. Determine your energy needs: The first step in designing a solar system is to determine your energy needs. This includes calculating your daily energy consumption and the peak power demand of your home or business. You can use this information to determine the size of the solar system you need
2. Select the solar panels: Once you have determined the size of the solar system you need, you can select the solar panels. The solar panels must be selected based on their efficiency, durability, and warranty. They must also comply with the South African National Standards (SANS) 10142-1-2
3. Select the inverter: The inverter is an essential component of the solar system. It converts the DC power generated by the solar panels into AC power that can be used by your home or business. The inverter must be selected based on its efficiency, durability, and warranty. It must also comply with the SANS 10142-1-2
4. Select the batteries: If you plan to store excess energy generated by your solar system, you will need to select the batteries. The batteries must be selected based on their capacity, efficiency, and warranty. They must also comply with the SANS 10142-1-2
5. Design the system: Once you have selected the solar panels, inverter, and batteries, you can design the solar system. The design must comply with the SANS 10142-1-2 and must take into account the specific requirements of your home or business

Solar installation under South African SANS regulations:

1. Mounting the solar panels: The solar panels are mounted on a suitable structure that is fixed to the roof or the ground. The structure must be able to withstand the weight of the panels and the wind loads in the area. The panels must be installed at an angle that maximizes their exposure to sunlight
2. Installing the inverter: The inverter is installed near the main distribution board. It converts the DC power generated by the solar panels into AC power that can be used by your home or business. The inverter must be installed in a well-ventilated area and must be protected from direct sunlight and rain
3. Connecting the batteries: If you are using batteries to store excess energy generated by your solar system, they must be connected to the inverter. The batteries must be installed in a well-ventilated area and must be protected from direct sunlight and rain. The wiring must be done according to the wiring code of practice for low-voltage installations (SANS 10142-1)
4. Installing the switchgear: The switchgear is installed between the inverter and the main distribution board. It allows you to switch between the power generated by your solar system and the power supplied by the grid. The switchgear must be installed in a well-ventilated area and must be protected from direct sunlight and rain. The wiring must be done according to the wiring code of practice for low-voltage installations (SANS 10142-1)