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Recovery Act Smart Grid Programs

Electric Transmission System

Electric transmission systems carry large amounts of power at high voltages from generators to substations. Transmission systems must be kept highly reliable to prevent blackouts and ensure robust energy markets. Synchrophasor technology has emerged as key enabler for improving transmission reliability and operations. Phasor measurement units (PMUs), phasor data concentrators (PDCs), wide area communications networks, and advanced transmission applications are building blocks of a smarter and more reliable transmission system. This chart shows number of PMUs being deployed as part of the SGIG program and the approximate extent of coverage in the United States resulting from SGIG funding.

 

Phasor Measurement Units (PMUs) Installed and Operational

Deployed as of June 30, 2012

Q1Q2Q3Q4

2010

0 0 0 29

2011

77 100 141 221

2012

313 420 0 0

2013

0 0 0 0

2014

0 0 0 0

2015

0 0 0 0
** Number of projects reported: 12
Updated on September 26, 2012View All Data

The table below includes SGIG program transmission system expenditures.

SGIG Program Electric Transmission Asset Expenditures