If you've been shopping around for a commercial solar system lately, you've probably heard an EPC vendor pitch bifacial solar panels as the obvious upgrade - more power, same roof space, what's not to like? Truth is a little more layered than that. Bifacial panels are genuinely one of the more useful advances in solar technology in the last decade but whether they're worth the extra spend depends almost entirely on how and where they're installed. At Wired and Wireless - popu