It would be fun to see this with local daylight hours mapped to the squares, so I could get a feel for where my consumption is at within "daylight" vs the whole "day" SunCalc is a good tool for this, if you're interested: https://github.com/mourner/suncalc (I've used it on a personal project, and the API was a little awkward but the results are good: https://daylight.website/ )
Your personal project is a pretty cool and interesting way to visualize daylight (especially using the fast forward button to go through a week at a time). Thanks for making it.
Thank you, I'm glad you enjoyed it. I love the week skip too, interesting to see the shape change over the year.
Undocumented feature: if you hold down "w" or "shift+w" keys you can skip through weeks even faster.