Email received on 20th December, 2010:
Hi from Hamburg / Germany,
first thanks for the access code to the data of your project. I checked it out today and played a bit with the interactive map. While the operation itself and the comparison of the various arrays and modules ist pretty much straight forward and self-explanatory, I am missing (or did not find ...) a way to show the accumated normalised energy output over a certain period of time, i.e. the energy "produced" in a week, a month, a year.
This feature would be very helpfull in order to compare the performance of the different modules over a longer period of time than just a day.