What 100 A comfortably runs
A typical home with gas heat, gas water heating, an electric dryer and a few kitchen appliances can run well within 100 A. Many GTA homes do exactly that.
What pushes you to 200 A
- A Level 2 EV charger (or two)
- A heat pump, especially with electric backup heat
- An induction range or electric wall ovens
- A hot tub, sauna or workshop
- A basement apartment
Add two or three of these and 100 A runs out.
Middle-ground options
Load management devices and EVEMS let some additions share capacity. A sub-panel can solve a "no spaces" problem without adding capacity.
Costs
A straightforward 100 A to 200 A upgrade in the GTA typically costs $3,500 – $5,500. See our full panel upgrade cost guide or try the load meter.
Quick questions
Is there 150 A service?
Yes, though 200 A is the more common upgrade target because the equipment cost difference is small.
Does a bigger service raise my bill?
No. You pay for the energy you use, not the size of the service.
How long does the upgrade take?
Usually a day on site; booking the utility disconnect takes one to three weeks.
