I say, about damn time! That still means 78% potential missed, but at least it's a step in the proper direction
Engadget.com - SunPower announces 22 percent efficient solar panels
or
Full Article @ Yahoo
The SPR-315 solar panel is based on the company's brand spankin' new Gen 2 solar cells, which have a rated power output of 315 watts and boast 22 percent photovoltaic (PV) efficiency -- that's opposed to the 7% to 17% common in most commercial PV systems. According to SunPower, that means you should get roughly 50 percent more power per square foot of roof area than the average solar panel, using half as many panels.
Engadget.com - SunPower announces 22 percent efficient solar panels
or
Full Article @ Yahoo