We’ve written a simple Java demonstration program to illustrate the use of the new National Grid Carbon Intensity API. You can download it from GitHub and experiment for yourself:

https://github.com/V2G-Ltd/Carbon-Intensity-Java

It runs quite happily on our trusty Raspberry Pi and on numerous other devices:

Here’s what the output looked like on October 2nd 2017 at 11:45 British Summer Time:

Here’s National Grid’s version of the same data:

and here’s the WWF’s version:

According to the National Grid Control Room feed on Twitter:

Carbon Intensity dropped to an all time record low of 73 gCO₂/kWh overnight https://t.co/tJdXeJqQqY

— NG Control Room (@NGControlRoom) October 2, 2017

If you’d like to pass comment on our experimental software please do so underneath the introductory blog post.