Home & business backup

SIDAI designs battery backup systems for homes, shops and offices that need selected circuits to keep running when grid supply drops. Each design starts with the appliances that matter and how long they need power.

What it does

A battery-backed inverter takes over when the grid drops, so the circuits you choose keep running. The rest of the property behaves as it did before.

Backup is not the same as going off-grid. Most systems stay connected to the grid, charge from it when power is available, and use solar to reduce what you draw.

What we look at

• Which circuits must stay live, and which can go dark.
• How long they need to run — an hour, an evening, or through the night.
• Start-up loads: fridges, freezers, pumps and tools draw more at the moment they start.
• Where the battery and inverter will sit, and how they will be ventilated and serviced.

What you receive

A written specification listing the inverter, battery, protection and circuits covered, followed by a price. We explain what the system can and cannot carry before you commit.

Good to know

Battery capacity, not panel capacity, decides how long the lights stay on. We size the battery around your backup hours first, then the array around what it needs to recharge.

Choosing the right backup system

First, list the lights, router, refrigerator, till, pump or equipment you want to keep on. Then note which items may run together and how long the backup should last. This helps separate essential circuits from loads that can wait. A refrigerator, freezer or pump can draw extra power when its motor starts, so the inverter must suit both the running load and that start-up demand.

Battery capacity affects how long those circuits can run. Solar panels can help recharge the battery when daylight is available, while the grid can also charge it when configured to do so. The right balance depends on the site and the hours you want covered; we do not promise a fixed runtime before assessing the load.

Assessment, installation and handover

Before recommending battery backup systems, SIDAI checks the existing circuits, the intended battery and inverter location, safe cable routes and how the equipment can be accessed for service. The written specification identifies the selected circuits and system components so you can review the scope before ordering.

At handover, we test the changeover, check the selected loads, label the circuits and explain the status indicators. You receive practical guidance on using the system and arranging maintenance. Request a battery backup assessment in Arusha and tell us what must stay powered.