Rutger Smit

Keep a close eye on your PV system that reports data to PVoutput.org. Show the current output values (energy/power) or look back per day/month.> v 1.0 …

Want to know how fas you need to run to finish a half marathon in 2 hours? How far do I get when I run 50 minutes at a fixed pace? - Easy to switch be …

Are you also racking your brain every time you try to figure out Roman numerals (or the other way around)? Install this app, sit back and relax! The h …