Last year, I went to the Rewired State Carbon & Energy hack day (#rscarbon), which was a great event. I went along with an idea, and even better actually got to build it! We got a great team together, and despite initial technical teething problems, had a demo running in time for the show and tell at the end (by the skin of our teeth). I’ve been meaning to write it up for ages, but instead, I decided to make a video.

The code is, as ever, available on Github, and there is another writeup on Paul Tanner’s blog.