Atmospheric rivers and windstorms take out power across the North Shore, the Fraser Valley, and Sea‑to‑Sky every year. Here’s how a solar battery keeps your home running — and how it stacks up against a gas generator.
First, a surprise: solar alone won’t power your home in an outage
Grid‑tied solar is required to shut down during a grid outage — an anti‑islanding safety rule that protects line workers. So without storage, a blackout leaves even a solar home dark. The battery is what changes that: it isolates your home and keeps feeding it from stored energy.
How battery backup works
When the grid drops, a hybrid inverter disconnects your home and powers your chosen circuits from the battery — automatically, usually within a fraction of a second. Your solar keeps recharging the battery by day, so on a multi‑day outage you can ride through far longer than a single charge. You decide what’s protected: typically fridge/freezer, heat pump or furnace fan, internet, lights, and outlets for phones and medical devices.
Battery vs. generator
What a battery gives you:
- Automatic — no going outside in a storm
- Silent, no fumes, indoor‑safe
- Recharges from your solar — no fuel
- Earns its keep daily (bill savings + Peak Saver)
- Up to $5,000 BC Hydro rebate (with Peak Saver)
Where a generator still competes:
- Runs indefinitely if you have fuel
- Lower up‑front cost for whole‑home
- Noise, fumes, refuelling, maintenance
- Does nothing on the other 360 days a year
- No rebate; fuel logistics during storms
For most Metro Vancouver homes, a battery wins on convenience and daily value; a generator can still make sense for very long rural outages or whole‑home heavy loads. The two aren’t exclusive — we can design a battery as primary backup with a generator as a deep‑backup layer.
About the author
Majid Arabi is the founder of Raincoast Solar. He works with homeowners, stratas and businesses across Metro Vancouver and southwest British Columbia on solar and battery storage — from the first 3D roof design and the rebate paperwork through to handover, with installation carried out by licensed electrical partners.
General information only. Backup duration depends on battery size, load, and solar recharge. Rebate figures current as of July 2026 and subject to Peak Saver enrollment and eligibility.