Can a home battery keep my Richmond fridge running for two days?

A home battery system can realistically keep a fridge running for two days, but whether it actually does depends on the battery's usable capacity, the fridge's draw, and what else you leave on. Here is how to think through it for a Richmond home.

The Math That Matters

A typical modern fridge uses roughly 1 to 2 kWh per day, so a 48-hour run needs about 2 to 4 kWh of usable energy. Most home battery systems sold in Canada today have usable capacities in the 10 to 13.5 kWh range (a single unit). On paper, that is plenty for the fridge alone. The catch is that "usable" capacity shrinks in cold weather, and a marine-climate winter in Richmond, where temperatures hover near zero, can reduce effective output by 10 to 20 percent depending on where the battery is installed. An unheated garage is the worst spot; a conditioned utility room is far better.

The second catch is that a fridge is rarely the only load. If the battery is also carrying a few lights, phone chargers, a router and a gas furnace's blower motor, your daily draw climbs fast. A gas furnace blower alone can pull 400 to 800 watts while running. Add that up over 48 hours and a single 10 kWh battery gets tight.

The honest answer: one standard home battery can keep a fridge running for two days if you manage other loads carefully, but it will not power a whole house for that period.

For Richmond specifically, the grid is served by BC Hydro. The windstorm outages that hit the Lower Mainland most often in October through February are usually resolved within 24 hours, though longer outages do occur. A single battery paired with solar panels (if your roof qualifies and strata rules allow) can recharge during daylight, extending that window considerably.

On the electrical side, a home battery installation requires a dedicated circuit, a critical-loads sub-panel or a transfer switch, and in many cases a bidirectional inverter. This is permitted work. Richmond issues its own gas permits but its electrical permits come from Technical Safety BC, so your electrician will pull the permit there, and the installation must pass a Technical Safety BC inspection before the battery is energised. The work must be done by a licensed electrical contractor.

Cost for the electrical portion, not including the battery hardware itself, typically runs $1,500 to $3,500 in Metro Vancouver depending on panel capacity, run length, and whether a critical-loads sub-panel is needed. Battery hardware from common Canadian suppliers adds roughly $8,000 to $15,000 for a single unit installed. Check CleanBC Better Homes for any current rebates on battery storage paired with heat pumps, as the program does evolve.

Before hiring, ask the electrician for their Technical Safety BC licence number, confirm WorkSafeBC coverage, and make sure the permit is included in the quote. Also ask whether the battery location meets the manufacturer's temperature range, because Richmond garages get cold enough in January to matter.

Want quotes for this? Vancouver Electrical Repair can match you with local electricians familiar with battery and backup installations for free.