PV Potential ~ Mapping Sunpower Worldwide...

The Sun is a giant thermonuclear reactor in the sky powerbeaming 24x7. A tiny sliver hits the daily rotating Earth and then you have to discount for angles and overcasts. When all's accounted for, here's the resulting worldmap of terrestrial potential for PV or photovoltaic sunpower... Curiously enough, most maps like this only show land incidence. But surely we could float massive solar panels out on swathes of ocean? In fact, perhaps we should hoover up the massive ocean gyres of waste plastic and convert these into floatation for PV paneling.