IEEE Electrification Magazine - September 2015 - 41
By Sky Stanfield and Amanda Vanega
©ISTOCKPHOTO.COM/FRNK PETERS
Deploying Distributed
Energy Storage
Near-term regulatory considerations to maximize benefits.
VER THE LAST DECADE, THE PERCENTAGE
of electricity generated in the United States
from renewable sources has grown at an
impressive rate, including significant
amounts of generation located on the distribution system. Solar photovoltaic (PV) electricity systems,
in particular, have evolved rapidly from a once-niche technology to one that is now widely used by schools, households, businesses, and utilities across the country (Figure 1).
Distributed energy resources (DERs)-including distributed generation, such as solar PV, wind, and combined
O
Digital Object Identifier 10.1109/MELE.2015.2447973
Date of publication: 1 September 2015
2325-5987/15©2015IEEE
heat and power as well as electric vehicles, energy storage,
energy efficiency, and demand response-offer significant
environmental, societal, and customer benefits. However,
the integration of high volumes of variable generation into
the distribution system is not without its challenges. The
electric system was not originally designed with large
amounts of local generation in mind. Thus, while there
are significant benefits to generating electricity closer to
load, there are also implications of two-way power flow
that need to be taken into account for maintaining power
quality and reliability with increased penetrations of distributed renewable generation.
Integration techniques have improved significantly,
and accommodating low levels of variable distributed
IEEE Electrific ation Magazine / S EP T EM BE R 2 0 1 5
41
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Table of Contents for the Digital Edition of IEEE Electrification Magazine - September 2015
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