Utilities and policymakers have worked for years to bring more Canadian power to New England and New York’s energy grid.

The U.S. has become a leading exporter of LNG, which is often used to ease energy shortages around the world. That stokes price volatility.

The price of coal has risen due to a surge in global demand. Still, signs point toward a continued decline for the U.S. coal sector.

A lot has changed since the Northeast blackout of 2003.

Crews from New York are among those restoring power in Old San Juan.

"When will we have power?" Why there isn't a straight answer.

More than a million customers have lost power in Hurricane Matthew's aftermath.