According to the new EEI Transmission Projects: At A Glance report, electric companies invested nearly $58 billion (in 2008 dollars) in maintaining and expanding the nation’s electric transmission network between 2001 and 2008, and plan to invest at least another $56 billion (nominal dollars) from 2009 through 2020.

Large, interstate projects in the report will account for approximately 10,000 circuit miles of transmission and represent $39 billion (nominal dollars) in investment. Highlighted projects that facilitate the integration of renewable resources will represent the addition or upgrade of nearly 12,900 circuit miles of transmission with an accompanying transmission investment cost of approximately $37 billion (nominal dollars). These types of transmission projects have the potential to address an array of purposes, including resource interconnection, reliability and congestion relief.

This year marks the fourth publication of EEI’s Transmission Projects: At A Glance report. This report includes a subset of future member company projects from 2009 through 2020, representative of various project investment category types, such as long-line, reliability, economic, and resource access (conventional and renewable) to present a broad perspective on the variety of transmission projects that EEI members currently have under construction or are planning.

EEI Transmission Projects: At A Glance report includes a brief profile of each EEI member company surveyed for the report, along with information about the representative projects, including a project map, brief description, estimated cost, current status, potential partners, and intended benefits.