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GridEye, (a.k.a. FNET/GridEye) is a project by DOE which purpose is to build a wide-area grid monitoring network that covers the three North American power grids. The FNET/GridEye system is deployed and operated by the Oak Ridge National Laboratory (ORNL) and the University of Tennessee.The objective of the current work is to provide additional monitoring points at planned renewable generation sites—such as wind farms—to characterize the system’s dynamic behavior before and after the installation of the renewable sources.

The FNET/GridEye system
The FNET/GridEye system is a unique wide-area grid monitoring network that provides independent observation of the entire electrical grid’s dynamic performance continuously and in real time. FNET/GridEye uses monitoring devices that are essentially GPS time synchronized single-phase phasor measurement units (or PMUs) to capture the dynamic responses (frequency, voltage and phase angle) of the grids to major disturbances such as generator trips and load shedding, as well as provide insight into inter-area oscillations. Since the monitors (which are referred to as frequency disturbance recorders, or FDRs) are connected at 110V, they do not require extensive installation as is the case for PMUs at high voltage substation. FDR monitors are low cost, easy to install, and are currently installed in offices, school buildings, and residential households.