Review of DC Power Distribution in Buildings: A Technology and Market Assessment

TitleReview of DC Power Distribution in Buildings: A Technology and Market Assessment
Publication TypeReport
Year of Publication2017
AuthorsVossos, Vagelis, Karl Johnson, Margarita Kloss, Mukesh Khattar, Daniel Gerber, and Richard E. Brown
Date Published03/2017
Abstract

California’s energy policy envisions a future energy landscape that can best be realized through a highly integrated and interoperable grid with very energy efficient end uses combined with on-site energy generation and storage. Direct current (DC) power distribution architectures have been proposed as a way to integrate the various electrical components within buildings that are needed to realize this vision, at a lower cost than traditional alternating current (AC) power systems. This report’s purpose is to summarize the current state of knowledge about the feasibility, cost effectiveness, market barriers, customer needs, and savings potential for DC or hybrid DC-AC systems to power zero net energy (ZNE) residences and commercial buildings, subdivisions, and communities. Particular focus is on residential and light-commercial building applications.

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