The “phone” she’s holding actually exists. And while people can buy it — it’s not for the reason most would expect.

According to Solar Tech Advisor, changing to a transparent panel could cost upwards of $25 per square foot. That's five times the cost of a traditional, roof-mounted solar panel. Though glass ...

The result was a module about two and a half square inches in size ... Researchers develop transparent solar cells that can supply energy from glass on buildings and cars — here's how it ...