Atsumi Labs

← The Collection  ·  No. 04

OffPeak

Run your home when power is cheap.

OffPeak watches ComEd’s real-time and day-ahead electricity prices and tells you, plainly, when power is cheap and when it’s about to spike — so you can run the dryer, charge the car, or hold off, and shave real money off a variable-rate bill.

Live — try it below
OffPeak dashboard — current ComEd price and today's price chart
◖ Smart timing

Spend less by running
your home off-peak.

Wholesale electricity can swing from a couple of cents to over 30¢ a kWh in the same day. OffPeak reads ComEd’s live and day-ahead prices, finds the cheap windows, and warns you before a spike — so the dishwasher, EV, and laundry run when energy is at its cheapest.

“Cheap right now — good time to run the dryer.”

Small, automatic timing decisions that quietly add up on a variable-rate plan.

Inside OffPeak

Know what power costs,
right now and next.

Live & day-ahead

ComEd’s real-time 5-minute rate and tomorrow’s hourly day-ahead prices, side by side.

Spike & dip alerts

Get pinged the moment prices cross your threshold, so you never run a big load at peak by accident.

Cheapest windows

OffPeak highlights the cheapest hours of the day for laundry, the dishwasher, and EV charging.

Real savings

Shifting flexible loads to off-peak hours can meaningfully cut a variable-rate electricity bill.

Web, then everywhere

A full-screen web app today, with native iOS and Android on the way — same data, same alerts.

More utilities to come

ComEd (northern Illinois) first, built to add more real-time-pricing utilities over time.

Pricing data from ComEd’s hourly pricing program. OffPeak is an independent app and is not affiliated with or endorsed by ComEd or Exelon. Prices shown are informational and may be delayed; check your utility for billing rates.