Free

Details

  • Released
  • Updated
  • June 28, 2019
  • December 19, 2025

Features

The NESO App screenshot #1 for iPhone
The NESO App screenshot #2 for iPhone
The NESO App screenshot #3 for iPhone
The NESO App screenshot #4 for iPhone
The NESO App screenshot #5 for iPhone
The NESO App screenshot #6 for iPhone
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About

Monitor your electricity supply's generation sources and identify the cleanest times to use power. See the carbon impact of electricity generation, compare your region, and get notified of decarbonization milestones. This app focuses on the electricity system.

Monitor electricity generation types
Identify cleanest electricity usage times
View carbon impact levels
Compare regional electricity generation
Receive decarbonization record notifications
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What's New in The NESO App

1.11

December 19, 2025

Minor bug fixes.

User reviews

Not granular enough

The app only shows end & solar, no mention of Hydro, a major generator in Northern Scotland

Missing Regional When To Use

I was sent to this app by the WhenToPlugIn app, which has now shut down. Unfortunately this app does not replace it, since it doesn’t show the next best times to use electricity based on regional predictions or current data - only national.

Interesting - but records not updated???

Interesting app.
But please check the records are updated correctly? Solar records is from’23. Grid data suggests solar output exceeded that level multiple times in March ‘25.

Water ?

Colour palette somewhat better now thanks BUT what happened to water as a source ? I never see any hydro on the grid anywhere using this app. Surely that can’t be right ?!

Serious errors

What???? 10971 MW is equivalent to 219,400 5W lightbulbs????

More like 2,194,200,000 5W lightbulbs!!!!

FAQ

What does the NESO App do?

The NESO App allows you to monitor the types of generation that make up your electricity supply and identify the cleanest times to use electricity. It provides insights into the carbon impact of electricity generation and allows you to see how your region compares to others.

What are the key features of the NESO App?

Key features include monitoring electricity generation types, seeing the carbon impact level of electricity generation, comparing your region to others in GB, and receiving notifications when decarbonization records are broken. It also helps you identify the cleanest times to use electricity.

Is the NESO App free to use?

Yes, the NESO App is available for free. There are no in-app purchases or advertisements mentioned in the description.

What is the carbon intensity calculation based on?

Information on how the carbon intensity is calculated can be found at carbonintensity.org.uk. The app utilizes this data to inform users about the environmental impact of their electricity consumption.

Who is the NESO App for?

This app is for individuals who want to understand the sources of their electricity and make informed decisions about when to use it to minimize their carbon footprint. It's particularly useful for those interested in sustainability and renewable energy.