the solar panels that are currently available to us peons in society...are not the most efficient or advanced panels in the marketplace. I saw a special about a year ago , it was about a company that had figured out a way to decrease the size of solar panels but make them more powerful ! ....the technology already exists and these solar " cubes" have been manufactured but they are only available to corps like NASA or the military.....
the one solar cube I saw...looked to be about twice the size of a rubiks puzzle cube and it could put out 200 watts or so of power....the technology involved a setup where the solar panels where cut in squares about 8" x 8" and then stacked on top of each other to form a tight solar cube of 20 or more panels together...evidently the panels were able to pickup sunlight to make electric, but also had the ability to allow sunlight to pass thru each panel so the sunlight could reach the next panel in the cube....
THE TECHNOLOGY IS PROBABLY OUT THERE, RIGHT NOW , to greatly increase regenerative power, but as is usually the case...that type of technology takes 5-10 years to be released to the normal people in society for purchase.