Blog · Canada · 2026

Home Charging vs. Supercharging: A Full Year, Side by Side

Same car, same distance, two very different charging habits. Here's the illustrative math, caveats included.

J. Tremblay — Editor, Refera (placeholder persona — see README). Published 2026-08-10.

Disclosure: referral links use rel="nofollow sponsored". Opening one may earn the code’s owner Tesla Credits; it costs you nothing. We are not affiliated with Tesla, Inc.

A comparison worth running, with the caveats stated up front

Neither Tesla nor a government source publishes one number for “what a year of home charging costs versus a year of Supercharging” — driving distance, vehicle efficiency, home electricity rates and Supercharger pricing all vary too much by household and province for a single figure to be honest. What we can do is walk the method with clearly labelled illustrative numbers, so you can swap in your own and get a real answer.

The illustrative assumptions — and why each is a placeholder

• Annual distance: 15,000 km — a commonly cited rough Canadian driving benchmark, not a Tesla-specific or Transport Canada figure. Your own annual distance may differ substantially.
• Efficiency: 17 kWh per 100 km — a round mid-range number chosen only for this calculation, not a published rating for any specific Tesla trim. Check your own car’s dash efficiency instead.
• Home rate: $0.10/kWh — illustrative only. Your actual residential rate depends on your province, utility and whether you’re on a time-of-use plan.
• Supercharging rate: $0.30/kWh — illustrative only, and lower than some of the range in our per-kWh how-to below. Read your own real rate before trusting this comparison for your own decision.

15,000 km at 17 kWh/100 km works out to 2,550 kWh across the year — the number both charging methods below are run against, so the comparison is apples-to-apples.

Where a referrer’s Tesla Credits fit into that gap

Referrer rewards — up to C$325 in Tesla Credits, or C$650 if the buyer added FSD (Supervised) — are spendable in-app, including at Superchargers. Against the illustrative $510/year gap above, a single C$650 credit would cover more than a full year of that difference outright, which is worth knowing if you’re a referrer deciding whether to Supercharge more freely rather than treating the credit as separate money.

The honest caveat: almost every number here is yours to correct

Your real annual distance, your car’s real efficiency, your actual residential rate and the real per-kWh rate at the stalls you use will each move this comparison — sometimes by a lot. Most drivers also mix both methods rather than choosing one exclusively, which narrows or widens the gap depending on the mix. Treat the table above as a method to rerun with your own four numbers, not a conclusion about what you’ll actually pay.

For how to find your own real Supercharging rate rather than an illustrative one, see our per-kWh how-to, and for whether a paid Charging Membership would change this math, our break-even checklist. Back to the Tesla referral code Canada hub for the referrer reward figures used above.