Did you know that your devices still use power when they're plugged in, even if they're turned off? This is called "phantom" energy, and, according to HydroQuebec, it accounts for 5-10% of everyone's electricity bill. That's 5-10% of everybody's electricity consumption, and it's being wasted! This costs the average Canadian home $150/year on average.

Right now, the main way to reduce or stop phantom energy waste is to use power bars and turn off the power bar when you're not using the devices connected to it. That works well enough for a single outlet, but a whole house? We wanted to make reducing phantom energy easy and simple for everyone.

What it does

Electromunch is an app and home hardware system that makes it easy for homeowners to reduce their phantom energy consumption. It allows users to turn off all unneeded devices with the click of a button, or schedule it for times they're usually out of the house.

In new houses, Electromunch would be part of the home's electrical system on a per-outlet basis. This would allow the user to control exactly what stays on or off (e.g. the outlets that connect to the fridge and clocks would always be left on). In older homes, this would be added in the electrical panel and allow users to control outlets on a room level (e.g. turning off all of the outlets in the living room). Which outlets or rooms would be left on at all times is configurable from the app.

The system has four modes:

  • timer mode -- turn the outlets off for a specified amount of time, and then back on
  • schedule mode -- schedule turning the outlets off/on by time and day of the week. For example, schedule the system to turn off while you're away at work during the week.
  • away mode -- turn the outlets off when the app detects you have left your house for a given amount of time (user-configurable) and turn them back on automatically when you get home.
  • manual mode -- manually turn the system on or off

How we built it

We built a prototype hardware system using Arduino and LEDs, and a demo Android app.

Challenges we ran into

We've never used Android Studio before or made any kind of app. It's also difficult to model the hardware component with the equipment we had at home and because the scale is very different for an Arduino vs the electrical system for a house.

Accomplishments that we're proud of

Trying new things! We're really happy with our idea. It's something different from anything else we've seen here and we think it could have a big impact on the world. No longer wasting 5-10% of a house's electricity consumption adds up very quickly, and it would be fairly simple and inexpensive to add to homes.

What's next for Electromunch

Implementation in the real world outside of a hackathon.

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