When many people think of the terms ‘off-grid storage’, ‘on-grid storage’ and ‘battery backup’ they often don’t realise that each of these have important differences that set them apart from each other. So how do they differ?
It’s important that the battery storage capacity in off-grid applications includes a comfortable level of ‘Autonomy’. What this means in practice, is that off-grid systems need larger ‘useable’ storage capacities to ride through periods of poor weather or increases in user demand. Off-grid systems also require larger equipment to be able to run all household appliances and loads without being overloaded. Another key factor to remember is there is no backup should equipment fail, batteries deplete, or the backup generator not start. Your supplier essentially becomes your electricity retailer, so choosing the right supplier is important.
Battery Backup – refers to uninterrupted power supplies (UPS) which provide a level of power in blackout or power failure situations – usually to a nominated appliance/s or load/s. The battery storage can be charged via the electrical grid, solar or fuel generators and the system will sit idle until there is power failure. These systems are most common for communication and IT equipment, as any power interruptions can cause big issues. For households, battery backup features can now often be incorporated into certain grid storage systems.