PowerLab was a personal hobby project for me to learn about web development and programming, and I learned a great deal from it. It also served as a mathematical learning experience involving the critical power model—the site is essentially a 3P critical power model adapted to work with ultra-short intervals.
I received excellent feedback from users over the past year, but the project was never intended to be commercial, so it no longer makes sense to keep it online. I’ve since moved on to other projects that occupy my time, so PowerLab’s cycle has come to an end.
Marcelo