guide describes criteria, scope and extent for engineering studies of the
impact on area electric power systems of a distributed resource or aggregate
distributed resource interconnected to an area electric power distribution
This document describes a methodology for performing
engineering studies of the potential impact of a distributed resource
interconnected to an area electric power distribution system. Study scope and
extent are described as functions of identifiable characteristics of the
distributed resource, the area electric power system, and the interconnection.
Criteria are described for determining the necessity of impact mitigation.
Establishment of this guide allows distributed resource
owners, interconnection contractors, area electric distribution power system
owners and operators, and regulatory bodies to have a described methodology
for when distribution system impact studies are appropriate, what data is
required, how they are performed, and how the study results are evaluated. In
the absence of such guidelines, the necessity and extent of DR interconnection
impact studies has been widely and inconsistently defined and applied.