Lessons learned from the Texas Synchrophasor Network

In 2009, the University of Texas at Austin established the Texas Synchrophasor Network which monitors voltages in the ERCOT grid in Texas plus several other points outside Texas. The monitoring points are mainly 120V wall outlets. This document summarizes the important lessons learned through analyzing the recorded data. These lessons include observations that wind generation up to 20% of total does not effect grid inertia or damping.