Standalone battery backup system for critical loads without solar.
When to use: Backup power for well pumps, sump pumps, freezers, or home office during outages.
Duration
1–5 days
Typical size
5–30 kWh
Permits
Electrical permit required
Scope of work
Load assessment
Battery selection
Battery installation
Critical load panel
Inverter installation
Testing
How this works in Alberta
A battery bank covers the hours a well pump or freezer cannot miss. It is quieter than a generator and already there when the grid blinks.
Size a backup battery on the loads that matter in an Alberta outage: the well pump, furnace blower, freezer, sump pump and internet. Well pumps have a high starting surge, so check the inverter's surge rating, not just its continuous output.
Batteries can be charged from the grid, from solar or from a generator. For multi-day winter outages, a battery paired with a generator is usually cheaper and more reliable than a battery alone.
Service area based on publicly available information and/or Land Intelligence research.
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