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Screenshots

  • GridCarbon screenshot 1
  • GridCarbon screenshot 2
  • GridCarbon screenshot 3

About GridCarbon

Track the carbon intensity of the GB electricity grid on your iPhone or iPad Demand for electricity varies throughout the day, and thus, the mix of generators supplying this electricity continually changes. As a result, the carbon intensity of the electricity – the quantity of CO2 produced for 1 kWh of electricity consumed – also varies continually. Deferring your use of electricity to off-peak times, when the carbon intensity is low, can help reduce your carbon footprint. Features: - Data updated every 5 minutes. - Display of instantaneous carbon intensity (gCO2/kWh). - Traffic light indicator to highlight period of low and high carbon intensity. - Generation mix summary showing total and percentage supply by type. - Line plot showing carbon intensity over the previous 24 hours. - Interactive bar chart showing the generation mix over the previous 24 hours.

Ratings & reviews

3.2

6 ratings

5 ★ 33% 4 ★ 17% 3 ★ 17% 2 ★ 0% 1 ★ 33%

What’s new

Version 1.16.1 · Updated May 12, 2026

Fixed typo.

App privacy

The developer, Alex Rogers, reported these privacy practices to Apple.

Data Not Collected

The developer does not collect any data from this app.

Alternatives to GridCarbon

Looking for apps like GridCarbon? Here are 6 similar apps on the App Store. The highest rated is Octopus Watch (4.0/5), and 4 of the 6 are free to download.

GridCarbon vs. alternatives
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GridCarbon 3.2 / 5 (6 ratings) Free May 12, 2026
Gridwatch – Free Dec 2, 2024 Compare
UK Power Tracker – Free Oct 9, 2024 Compare
Octopus Watch 4.0 / 5 (1) 1.99 USD Oct 23, 2026 Compare
GridMix – Free Feb 25, 2025 Compare
OctoTracker 3.0 / 5 (1) Free Jun 25, 2025 Compare
Octopus Energy Agile Watcher – 0.99 USD Mar 16, 2026 Compare

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