New England''s Synchrophasor Initiative

PMUs with high sampling rates and GPS synchronization represent a critical smart grid technology that can enhance transmission system operations by providing wide-area monitoring of power system dynamic behaviors, an ability that was unavailable until recently. The New England Independent System Operator is two years into a project to expand synchrophasor infrastructure to give system operators a view of what is happening over the region's 3400 kilometers of 345-kilovott transmission lines.