1
Define critical loads
Pumps, refrigeration, communications, lighting and selected heating or control circuits have very different starting and running loads.
STORAGE · OTTAWA
Ottawa battery backup sized around what matters.
The right starting point is the critical-load list, not the largest battery being sold.
An Ottawa battery can maintain selected loads during an outage and shift solar energy into the evening. Runtime depends on appliance power, duration and how the battery can recharge.
✓ Verified July 12, 2026✓ Official sources linked✓ Hydro Ottawa
What we verify
The right starting point is the critical-load list, not the largest battery being sold.
An Ottawa battery can maintain selected loads during an outage and shift solar energy into the evening. Runtime depends on appliance power, duration and how the battery can recharge.
2
Separate energy from power
Kilowatt-hours describe stored energy; kilowatts describe what the battery can supply at one time. Both must be checked.
3
Design for winter operation
Location, temperature range, internal heating, ventilation and recharge strategy affect cold-weather performance.
PROGRAM AND UTILITY
Ottawa : Hydro Ottawa
Hydro Ottawa net metering can credit eligible renewable generation exported to the grid. Credits are non-cash, grid capacity and approvals matter, and any remaining credit expires 12 months after it was created.
- The City of Ottawa publishes building-permit submission requirements for solar collectors on low-rise residential buildings. Electrical Safety Authority and Hydro Ottawa connection requirements are separate from the municipal permit.
- Rules and amounts are confirmed before equipment is ordered.
- Production and financial assumptions remain visible.
Explore local services
One focused page for each decision.
Frequently asked questions
Frequently asked questions
Can one battery run the entire home?
Sometimes, but many projects are more practical when they prioritize a critical-load panel and manage large appliances.
How many hours will it last?
Runtime depends on active loads. A credible estimate lists each appliance and expected duration.
Is a battery required with solar?
No. Grid-connected solar can operate without storage; batteries mainly address resilience and time-shifting goals.
Sources and verification date
Always verify the current rule.
Programs, rates and requirements can change. These are the primary sources used for this page.
Hydro Ottawa — distributed energy and net metering ↗Home Renovation Savings — solar and storage rebates ↗City of Ottawa — solar collector permit requirements ↗
Verified July 12, 2026
Start with the real building and electricity bill.
The EnerSolaris Studio prepares a preliminary analysis before you speak with our team.