Stacking solar cells leads to more efficient energy collection, lower bills

Lately we keep receiving news of big advancements in the solar technology. http://o.aolcdn.com/hss/storage/midas/a29c05632e22e50b8395448a94455c8a/200552697/solar.jpg Markedly, there’s a trend here, and I predict soon there will be an explosion where solar tech will become mainstream and...