This battery system is suitable for an average three-bedroom house where usage will be limited to a load of 480W.

It has a total of two 200 Ah 12V batteries and inverter that can provide 2,400 Watt continuously and 2.4kWh.

This will enable the following functions:

• 10-15 LED or CFL lights
• A TV and a decoder (30W when off, 150W when in use)
• One energy-efficient fridge/freezer on, managed well (100W – 200W)
• A laptop (65W while charging)

The estimated cost of this system, excluding installation, is R40,000.