While it’s main map is free, some companies, government agencies and media outlets such as CNN pay for detailed and ... who studies the US power grid. “It’s very substantial, right, because ...

This map plots the number and locations ... according to a CNN analysis that counts them within a 25-mile hexagonal grid across the contiguous United States. In addition to property damage caused ...

Within those is a patchwork of about a dozen smaller, regional grid systems. The physical electrical lines connecting all of the systems are fragile and outdated, experts told CNN. “Between each ...