Look closely at a solar panel, and you'll see a series of thin metallic lines running across the surface. They're not there to look nice -- they have a specific purpose. Those lines are called the ...

Forbes contributors publish independent expert analyses and insights. I write about green energy tech that will change your life. Have you ever noticed power lines sagging lower on a hot summer day?

Experts claim power grid infrastructure needs to be upgraded to accommodate the vast amount of renewable energy expected to be added to the system in coming decades. That could require billions of ...