Cosm, which I’ve been using as the repository for the electricity data I’ve been logging for Prince Edward Island is a great resource, but its graphs are static and not particularly useful for dynamic exploration of data. So I’ve been experimenting with local logging of this data, and then using the Google Charts Tools to visualize the archived data.
The result is this graph, which is dynamic — you can change the time period viewed, and examine anywhere from a minute’s worth of data to a year’s worth (there’s only a week’s worth of data there now, so that’s as far out as you can see as I write this post).
By exploring the graph, you can see how Prince Edward Island’s electricity usage (the “Load” line in blue) over the course of the day and the course of the week. For example, compare a Sunday morning to a Monday morning to see what effect not going to work has on electricity usage. As the archive of data grows, we’ll be able to explore seasonal changes as well.