The power grid has been a topic that has dominated headlines in the energy industry and mainstream news over the past few decades. Despite this increased focus, with each passing year the problem is ...

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?

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 ...