Solar electricity may seem like a gift from the Gods, but in fact it was an invention of man (perhaps God inspired), and it is not new. The photovoltaic (PV) effect was discovered in 18th century France, promoted by Germany's Werner von Siemens, and developed as a workable product by our own Bell Labs in 1954. But it was pioneers like Peter Varadi, with the appropriate initials "PV," who created the modern solar PV industry. (In this blog I'll occasionally profile solar leaders, but only those I've had the privilege of knowing personally.)