/00 [ TOU · WINTER · 17:30 · SAMPLE ][ RATES OEB · NOV 1 2026 ]
Run it when it’s cheap.
PowerSave reads your Ontario rate plan and tells you exactly when to start the laundry, the dishwasher or the EV.
[ TOU · WED NOV 18 · 17:30 ]Sample data
Off-peak · 9.1¢
On-peak · 18.9¢
Mid-peak · 14.6¢
Off-peak · 9.1¢
12 AM
3 AM
6 AM
9 AM
12 PM
3 PM
6 PM
9 PM
Laundry · 7:00 PM
NOW 17:30
Laundry
3 kWh · 90 min
Wait until 7:00 PM.
Save about 30¢
Now 57¢7:00 PM 27¢
Dishwasher
1.2 kWh · 2 h
Wait until 7:00 PM.
Save about 9¢
Now 20¢7:00 PM 11¢
EV charging
28.8 kWh · 4 h
Wait until 7:00 PM.
Save about $1.06
Now $3.687:00 PM $2.62
Estimates cover electricity cost only. Delivery, regulatory charges, HST and the Ontario Electricity Rebate are not included. How we calculate →
RATES FROM THE OEB
GRID DATA FROM IESO PUBLIC REPORTS
UPDATED EVERY ~5 MIN
NO ACCOUNT NEEDED
/01 [ ONE LOAD · TWO START TIMES ]
Same laundry.
Same dishes.
Smaller bill.
[ LAUNDRY · 3 kWh · 90 MIN ]Sample data
27¢Start 7:00 PM
Off-peak · 9.1¢
On-peak · 18.9¢
Mid-peak · 14.6¢
Off-peak · 9.1¢
12 AM
3 AM
6 AM
9 AM
12 PM
3 PM
6 PM
9 PM
Start 7:00 PM
NOW 17:30
Save about 30¢
/02 [ HOW IT WORKS ]
Three steps. No account.
/01
Pick your plan.
TOU, ULO or Tiered. Not sure? We start you on TOU, the default for most Ontario homes.
/02
Add your chores.
Laundry, dishwasher, EV charging, or your own. Edit the kWh and run time to match yours.
/03
Get the cheapest start.
One verdict per chore: run now, or wait until a time. The saving is an estimate.
/03 [ PLANS · RATES OEB · NOV 1 2025 ]
Your plan sets the answer.
TOUWEEKDAY
9.8¢ · 15.7¢ · 20.3¢
Cheap after 7 PM and all weekend. Mornings and early evenings cost the most.
ULOWEEKDAY
3.9¢ · 9.8¢ · 15.7¢ · 39.1¢
Overnight is 3.9¢. The 4 to 9 PM window is 39.1¢. Built for EVs and delay-start habits.
TieredWEEKDAY
12¢ · 14.2¢ above the monthly tier
Timing doesn’t change your price.
/04 [ THE GRID ]
Ontario's grid, live.
The wholesale price shows when the system is under stress. Your bill still uses your plan's fixed prices.
Open The Grid[ WHOLESALE · NOT YOUR BILL ]Sample data
Wholesale market price. Not what you pay.
4.6¢/kWh equivalent · $46/MWh
Last updated 6:05 PMSample data
/05 [ THE METHOD ]
“3 kWh × 90 min, priced minute by minute across the periods it overlaps. Start times tested every 15 minutes.”
[ NO TESTIMONIALS. JUST THE MATHS. ]How it works →