IEEE Power & Energy Magazine - November/December 2019 - 25
©ISTOCKPHOTO.COM/DINA MARIANI
Figure 1 examines system portfolios across several regions
and compares the capacities of nonvariable generation (fossil fuel, nuclear, and others) with VERs. The capacities of
interconnections and energy storage are shown, two common options for mitigating variability. Power systems are
traditionally overbuilt to accommodate more-than-expected
peak demand to account for unexpected outages and variability in weather. Because of the variable nature of the
resources, systems with high VER penetrations are likely
to have much more generation capacity than peak demand.
Figure 1 shows that even those utilities serving areas with
very high VER capacities, such as Energinet, South Australia, and the Kauai Island Utility Cooperative (KIUC) in
Hawai'i, continue to have significant nonvariable generation capacity.
Some regions are experiencing very high instantaneous
penetrations of VERs (Figure 2). As compared with other
areas, those served by Energinet and South Australia have
By Debra Lew, Drake Bartlett, Andrew Groom,
Peter Jorgensen, Jon O'Sullivan, Ryan Quint,
Bruce Rew, Brad Rockwell, Sandip Sharma,
and Derek Stenclik
november/december 2019
ieee power & energy magazine
25
IEEE Power & Energy Magazine - November/December 2019
Table of Contents for the Digital Edition of IEEE Power & Energy Magazine - November/December 2019
Contents
IEEE Power & Energy Magazine - November/December 2019 - Cover1
IEEE Power & Energy Magazine - November/December 2019 - Cover2
IEEE Power & Energy Magazine - November/December 2019 - Contents
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IEEE Power & Energy Magazine - November/December 2019 - Cover3
IEEE Power & Energy Magazine - November/December 2019 - Cover4
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