A basic Amsler grid is a 10x10-centimeter square filled with evenly spaced straight lines in a grid pattern. The lines form very small squares that measure 5 millimeters on each side.

Building new transmission lines takes years and costs billions. The good news? There’s a cheaper, faster way to expand power grid capacity without waiting on massive new infrastructure projects.

Advanced transmission technologies help U.S. utilities update the power grid Thousands of renewable projects are waiting to connect to the grid, but there aren't enough transmission lines.