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Proceedings Paper • Open Access

Solar Energy Grid Integration Systems (SEGIS): adding functionality while maintaining reliability and economics
Author(s): Ward Bower

Paper Abstract

An overview of the activities and progress made during the US DOE Solar Energy Grid Integration Systems (SEGIS) solicitation, while maintaining reliability and economics is provided. The SEGIS R&D opened pathways for interconnecting PV systems to intelligent utility grids and micro-grids of the future. In addition to new capabilities are "value added" features. The new hardware designs resulted in smaller, less material-intensive products that are being viewed by utilities as enabling dispatchable generation and not just unpredictable negative loads. The technical solutions enable "advanced integrated system" concepts and "smart grid" processes to move forward in a faster and focused manner. The advanced integrated inverters/controllers can now incorporate energy management functionality, intelligent electrical grid support features and a multiplicity of communication technologies. Portals for energy flow and two-way communications have been implemented. SEGIS hardware was developed for the utility grid of today, which was designed for one-way power flow, for intermediate grid scenarios, AND for the grid of tomorrow, which will seamlessly accommodate managed two-way power flows as required by large-scale deployment of solar and other distributed generation. The SEGIS hardware and control developed for today meets existing standards and codes AND provides for future connections to a "smart grid" mode that enables utility control and optimized performance.

Paper Details

Date Published: 13 September 2011
PDF: 6 pages
Proc. SPIE 8112, Reliability of Photovoltaic Cells, Modules, Components, and Systems IV, 811202 (13 September 2011); doi: 10.1117/12.915598
Show Author Affiliations
Ward Bower, Sandia National Labs. (United States)

Published in SPIE Proceedings Vol. 8112:
Reliability of Photovoltaic Cells, Modules, Components, and Systems IV
Neelkanth G. Dhere; John H. Wohlgemuth; Kevin W. Lynn, Editor(s)

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