Skip to content
All articles

Residential

Winter 2027 Outage Prep: What Has Changed Since Last Year and What Has Not

7 min readSkyline Electric

Last winter delivered two genuine multi-day outages across our service area - a December ice event that took out Hydro One service to large parts of Muskoka for two to four days, and a late-January wind event that shorter-cycled Alectra customers in Hamilton and Burlington. The holiday outage action plan we wrote a year earlier held up on the big stuff. A few items we have changed for the 2027-28 winter. Here is the update.

What still holds

The core plan from last year is intact:

  • Standby generator wins on outages over four hours. Portable plus interlock-kit wins on shorter outages or as a sized-down option. Battery storage is an option but rarely the right one alone.
  • Freezer math: a chest freezer stays food-safe for roughly 48 hours unopened, a refrigerator for about 4 hours. Open the door, the clock resets shorter.
  • Cottage owners with well and septic pumps need generator coverage as a baseline. Without those, the cottage is uninhabitable inside a day.
  • The transfer switch test on the generator is the most-skipped maintenance item and the one most likely to fail you on the day it matters.

What we changed for this year

1. Communications outage now gets its own bullet

One thing 2026-27 made clear: when the power goes down, cellular often follows within a few hours. Cell sites have battery backup that lasts 4-8 hours depending on the site. Past that window, the site goes dark unless the carrier dispatches a portable generator - which they sometimes do, sometimes do not, depending on outage prioritization.

What this means practically: the family group chat you assumed would be your coordination tool may not exist after hour six. We now tell customers to:

  • Identify a physical location to converge to if the power has been out more than 12 hours and you cannot reach each other.
  • Keep a battery-powered FM radio with the cottage emergency frequencies pre-tuned. Local stations stay up longer than cellular.
  • Know where your nearest functioning gas station is in a regional outage. The pumps run on grid power and will not dispense fuel until power restores.

2. Freezer monitoring moved from "nice to have" to "actually useful"

We were skeptical about cellular freezer monitors a year ago. The data from this year changed our position. Customers running Govee, Ambient Weather, or LaCrosse cellular thermometers got useful alerts during the December event. The cellular notification lag was longer than the spec promised but still arrived within an hour of the temperature crossing threshold - which is enough time to make a decision about driving to the cottage, deploying a portable generator, or moving food.

The catch is that the monitor itself needs cellular signal where you put it. A cottage in a marginal-coverage area should pre-test the monitor for actual signal at the freezer location, not at the road.

3. Cold-weather EV charging is now part of the outage plan

We did not consider this last year because the EV adoption curve had not crossed enough households yet. In 2027 it has. A garage-charged EV that finishes its overnight charge at 8 AM is at 100% when an outage starts. That EV battery is 60-80 kWh - enough to power a typical fridge plus furnace blower plus a few lights for 2-3 days through a bi-directional inverter or a portable inverter tied to the vehicle. The EV cold-weather post from December covers the vehicle side; for outage planning purposes, the EV in the garage is now a resource. We are seeing customers ask whether their charger supports V2H and whether their inverter can be hardwired for backup. The answer is product-specific and limited but the trend is real.

4. The generator exercise schedule moved earlier

Generac, Kohler, and Cummins all default the weekly exercise to a midday slot. We are now recommending customers shift it to early morning - Tuesday around 7 AM is our usual pick. The reason: it forces a cold-engine start once a week, which is the actual test of whether the unit will start when the temperature crosses -15°C in February. The midday warm-engine exercise was confirming the engine could run; it was not confirming it could start cold.

5. We retired the manual transfer switch recommendation for properties without an owner on site

Manual transfer switches plus portable generators are still a perfectly good option for occupied homes where someone is going to start the portable when the lights go out. For seasonally-occupied cottages or for owners who travel - which is most of our cottage customer base - the manual setup is useless. The owner is not there. We are now recommending standby with auto-transfer for any property without a year-round resident, full stop.

The 60-minute outage action plan, 2027 edition

When the power drops, before you start phoning anyone:

  1. Confirm scope. Look at the neighbour's house. Lights? It is your panel, not the grid. Check the main breaker, check the meter base for any visible damage. Reset the main if it tripped. If a reset trips it back immediately, leave it off and call.
  2. If it is grid-wide: open the utility outage page from your phone if cellular is still up. Note the estimated restoration time. If it is over 4 hours or unknown, work the plan.
  3. Generator owners: verify the unit started and the transfer happened. If it did not, the manual start instructions live on a laminated card inside the generator enclosure (or should - if yours does not, add this to the spring service visit).
  4. Freezer protocol: do not open the doors. Confirm the freezer light is off and stays off. Phone the food protection plan into action if it has been over 12 hours and there is no generator.
  5. Heat strategy: if the heat source needs electricity (forced-air gas furnace blower, heat pump, electric resistance), the inside temperature will drop in 4-12 hours depending on insulation and outside temp. Plan accordingly - close interior doors, isolate to one room, run a propane heater only with a CO detector active.
  6. Cold-weather plumbing: if the home will be unheated for over 12 hours and outdoor temps are below -10°C, drain the lines or open faucets to a drip. The frozen-pipe burst on hour 30 will cost you more than the outage did.

The customer assets we now recommend

  • Standby generator with auto-transfer (any property without a year-round resident, or any property with well and septic).
  • Cellular freezer monitor with confirmed signal at the freezer location.
  • Battery-powered radio with pre-tuned local FM frequencies.
  • Surge protection (Type 1 and Type 2) on the service - the surge during restoration is what fries the appliances.
  • Pre-winter electrical inspection in October - the pre-winter inspection post covers what that visit includes.

When to call us

If your generator has not been serviced this fall, the window is closing. If you do not have a generator and the December 2026 outage convinced you, the install lead time is currently several weeks. Generator installs and service work across the Muskoka cluster (Huntsville, Bracebridge, Gravenhurst, Port Carling, Baysville) and the Golden Horseshoe. Request a quote.

ResidentialCottageSeasonalGeneratorsSafety

Ready when you are.

Residential, commercial, and cottage electrical across Huntsville, Bracebridge, Gravenhurst, Port Carling, Baysville, Hamilton, Burlington, Waterdown, Ancaster, Dundas, Stoney Creek, Oakville.

Call Request →