# Gridwatch (Ontario Edition) — Know your power.

> Ontario electricity grid generation, demand, emissions, and plant details. (iPhone/iPad app by EnergyMobile.)

- Source: https://appshunter.io/ios/app/gridwatch-ontario-edition/id536892685 (this page in markdown: same URL + `.md`)
- Developer: [EnergyMobile](https://appshunter.io/developer/469396143)
- Category: Education, Utilities
- Price: Free
- Rating: 5.00/5 from 12 App Store ratings · 59 written reviews indexed
- Age rating: 4+
- Requires: iOS 9.0 · 6 MB
- Languages: American English
- Released: 2013-02-22
- Data updated: 2026-08-31
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/gridwatch-ontario-edition/id536892685/reviews.md

## What is Gridwatch (Ontario Edition)?

See where Ontario's power comes from, when the grid is clean and when it's not.

GRIDWATCH HELPS MAKE ONTARIO'S ELECTRICITY GRID VISIBLE. 

//Hourly Power & Demand

Track Ontario’s electricity grid hour-by-hour and plant-by-plant using the most current, trustworthy data. Gridwatch breaks out the total generation by fuel type with an option to drill down further for hourly capability and output figures for each power plant. Gridwatch also tracks hourly imports, exports and Ontario's Provincial demand.

//Total Emissions & Intensity

See the total carbon emissions and carbon intensity of Ontario's electricity grid. Drill down into the equivalent emissions in terms of cars and trees to put things in context. Backed by a peer reviewed and published methodology, carbon intensity is a simple indication of how clean (or dirty) the grid is.

//Power Plant Details

Gridwatch not only breaks down total generation by fuel type but also by individual power plant. Each plant's capability and actual contribution a listed for every hour. Want to know more about a specific plant? Location, owner/operator and a specific knowledge nugget is provided for each facility.

//Maps & Trends

View all power plant locations colour coded by fuel type on an interactive map of Ontario. Filter by fuel type, zoom in/out and tap for details about the specific plant. Track both power and emissions trends for the current day along with Ontario's Time-Of-Use schedule. Interact with the trend graphs to see the impact each fuel type has on the grid.

A note to our users outside of Ontario: Gridwatch only tracks the Province of Ontario's electricity grid and does so in Eastern Time.

## Key features

- Hourly power and demand tracking
- Total emissions and carbon intensity
- Individual power plant details
- Interactive Ontario power plant map
- Power and emissions trend graphs
- Time-of-Use schedule integration

## Recent user reviews (10 of 59)

All indexed reviews: https://appshunter.io/ios/app/gridwatch-ontario-edition/id536892685/reviews.md

### 5/5 — Best Energy App

*2026-05-02, version 2.3.0*

Great resource for Ontario energy

### 5/5 — Good information

*2025-11-05, version 2.3.0*

Surprised to learn that the Ontario generation is usually more from gas than hydro.  That is not what I want to see but I am grateful that this tool is available.

### 5/5 — Amazing app

*2025-04-18, version 2.3.0*

🔥🔥🔥

### 5/5 — Great app

*2025-04-15, version 2.3.0*

Great to show current use of Ontario's elec. generating assets

### 5/5 — Great app

*2024-09-03, version 2.3.0*

Love the insight

### 5/5 — Great app

*2024-07-03, version 2.3.0*

Would love to see a widget added in a future release

### 4/5 — Well put together.

*2024-05-11, version 2.3.0*

The only thing I would like is the ability to search historical data by date.

### 5/5 — Very informative

*2024-03-17, version 2.3.0*

I just enjoy seeing how much power is used at different times on different days in different seasons, and how it is being produced.

### 5/5 — Concise Detail

*2023-08-10, version 2.3.0*

Concisely provides information of the ongoing, daily status of the Ontario electricity status.

### 5/5 — Stop all the fake opinions

*2023-06-01, version 2.3.0*

This is real, factual, straight forward information. Wish there was more info like this. Number of new homes completed each day. Or amount of money spent by each level of government daily. Or the wait times for a vaiety of surgeries in different hospitals in ontario.

## Frequently asked questions about Gridwatch (Ontario Edition)

### What does Gridwatch (Ontario Edition) do?

This app provides real-time insights into Ontario's electricity grid. It allows users to track hourly power generation by fuel type and individual plants, monitor provincial demand, and view import/export data. It also calculates and displays the grid's total carbon emissions and intensity, offering contextual comparisons.

### What are the key features of Gridwatch?

Key features include hourly tracking of power generation and demand, detailed breakdowns by fuel type and specific power plants, and the calculation of total emissions and carbon intensity. Users can also explore an interactive map of power plants and view trends for power and emissions.

### Is Gridwatch (Ontario Edition) free to use?

Yes, the application is available for free. There are no in-app purchases or advertisements mentioned, indicating a completely free user experience.

### What information is available for individual power plants?

For each power plant, the app provides its hourly capability and actual output. Additionally, users can find details such as the plant's location, owner/operator, and a specific knowledge nugget about the facility.

### Who is this app designed for?

This app is intended for anyone in Ontario who wants to understand where their electricity comes from, how clean the grid is at any given time, and the specifics of power generation within the province. It's useful for environmentally conscious individuals and those interested in energy infrastructure.

## Version history (last 5 releases)

### 2.3.0 — 2018-11-25

- Updated for newer phones and tablets
- Refreshed icons and colours
- Maintenance and bug fixes

Please email us at support@gridwatch.ca with any issues, feedback or suggestions.

### 2.2.0 — 2016-03-17

- added Solar category
- added Biofuel category
- removed Coal category
- performance improvements, bug fixes, maintenance

### 2.0.1 — 2014-06-26

- now Universal App
- performance tweaks
- bug fixes

### 1.3.0 — 2013-12-03

- Brand new design for iOS 7
- performance improvements
- bug fixes

### 1.2.1 — 2013-02-22

New in 1.2.1:

- fixed iOS 5 landscape graphs layout bug

New in 1.2.0:

Based on user feedback we've added: 

- Power Plant Location Map 
- Power Plant Detail View 
- Import Export data 
- Ontario Demand 
- CO2 Intensity 
- Overview of the Electricity Grid 
- Ontario's Total Installed Generating Capacity 
- iPhone5 optimization

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-31.*