Microgrids in the Evolving Electricity Generation and Delivery Infrastructure

TitleMicrogrids in the Evolving Electricity Generation and Delivery Infrastructure
Publication TypeReport
Year of Publication2006
AuthorsChris Marnay, Giri Venkataramanan
Date Published02/2006
Keywordsdistributed energy resources (der), electric power quality, electricity markets and policy group, energy analysis and environmental impacts department, power system economics, power system operation, power system reliability

The legacy paradigm for electricity service in most of the electrified world today is based on the centralized generation-transmission-distribution infrastructure that evolved under a regulated environment. More recently, a quest for effective economic investments, responsive markets, and sensitivity to the availability of resources, has led to various degrees of deregulation and unbundling of services. In this context, a new paradigm is emerging wherein electricity generation is intimately embedded with the load in microgrids. Development and decay of the familiar macrogrid is discussed. Three salient features of microgrids are examined to suggest that cohabitation of micro and macro grids is desirable, and that overall energy efficiency can be increased, while power is delivered to loads at appropriate levels of quality.

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