The min-max and YTD will reset 1 Janurary 2012.
On the History page
The Solar Energy units are Langley (Ly).
This is ..a unit of solar energy equal to:
- one calorie per square centimeter.
- 11.62 W-Hr/sq-meter
- 1.028 W-Hr/ sq-ft
Notes on the History plots.
As with all the history plots there are verticle lines every eight hours.
There is a tick mark extending below the base line to signify midnight.
The other verticle lines are at 8:00AM and 4:00PM.