Backup power
Generator Transfer Switches & Backup Power, Barrie
Manual and automatic transfer switches, standby generator hookups, and interlock kits — safely, and legally.
Simcoe County loses power. Ice in December, wind off Kempenfelt Bay, and a snow belt that regularly puts trees into lines — most Barrie-area homes see at least one multi-hour outage a year, and rural properties in Oro-Medonte and Springwater see considerably more.
Never backfeed a dryer outlet
The dangerous, common, and entirely illegal approach is a "suicide cord" — a double-male cable from a portable generator into a dryer or range outlet. It energises your entire panel with no isolation from the utility, which means it energises the service drop, which means it can kill an Alectra lineworker restoring your power. It also exposes live pins on the cord you are holding. Do not do it, and if a previous owner left the cord in your garage, throw it out.
The three legitimate options
- Panel interlock kit — a mechanical slide that physically prevents the main breaker and a generator breaker from being on at the same time. Cheapest legal option, gives you access to any circuit in the panel, requires you to manage load manually. Around $1,100–$1,600 installed with an inlet.
- Manual transfer switch — a separate sub-panel of six to twelve selected circuits, each switchable between utility and generator. Simpler to operate than an interlock and harder to get wrong. Around $1,800–$2,600.
- Automatic transfer switch with a standby generator — senses the outage, starts the generator, transfers load, and transfers back. Nothing for you to do. The switch and electrical work run $2,800–$5,500 depending on whether the whole service or a selected sub-panel is backed up; the generator and its gas connection are separate.
Sizing, honestly
People routinely buy more generator than they need. A well-chosen interlock setup on a 7,500W portable will run a gas furnace, a fridge, a freezer, a sump pump, well pump, and lights comfortably — which is the actual list that matters during a winter outage. Whole-home standby only becomes necessary with electric heat, a heat pump without a gas backup, or well-and-septic properties where losing the pump ends the day.
The one that catches people: a sump pump on a backup circuit is the highest-value thing in this list for a Barrie basement, and it is frequently left off the transfer switch because it is not visible during a summer install.
Cost
| Setup | Electrical cost | Operation |
|---|---|---|
| Interlock kit + exterior inlet | $1,100–$1,600 | Manual — start, plug in, flip breakers |
| Manual transfer switch, 10 circuits | $1,800–$2,600 | Manual — start, plug in, flip switches |
| Automatic transfer switch, sub-panel | $2,800–$3,800 | Automatic |
| Automatic transfer switch, whole service | $3,800–$5,500 | Automatic |
| ESA permit and inspection | Included |
FAQ
Backup power — common questions
Do I need a permit for a generator hookup?
Yes. Any transfer switch, interlock, or generator inlet requires ESA notification and inspection. This is one of the categories inspectors take seriously, because the failure mode endangers utility crews.
What size generator do I need for a Barrie house?
For a gas-heated home with a sump pump, 5,500 to 7,500 running watts covers the essentials comfortably. Well-and-septic rural properties should target 8,000 or more because the well pump's starting surge is the binding constraint.
Can I add an automatic switch to a portable generator?
Not meaningfully — automatic transfer requires a generator that can self-start, which portables cannot. If you want hands-off backup, you are buying a standby unit.
Will a generator run my heat pump?
A standby unit sized for it, yes. A portable, usually not — heat pump compressors have a high starting draw and most portables will stall. If you have heat pump heating and no gas backup, that pushes you toward whole-home standby.
Talk to a Barrie electrician
Describe the problem over the phone. We can usually tell you whether it needs a truck today or can wait for a scheduled visit — and roughly what it costs — before anyone books anything.