IEEE Power & Energy Magazine - November/December 2019 - 45

BPS. The focus of these efforts is ensuring that the BPS
has sufficient essential reliability services: inertial response
and stability, frequency control and balancing, and reactive power capability and voltage support. While modern
inverter-based resources can be equipped with these capabilities and controls, changes in planning and operating paradigms must occur to utilize those capabilities. A BPS with
increasing numbers of inverter-based resources, including
DERs, presents new challenges that must be addressed to
ensure a reliable grid.
NERC has strengthened its focus on DER impacts on
the BPS and formed the System Planning Impacts of DER
Working Group (SPIDERWG). This group is developing
guidance to address the planning and modeling challenges
that come with the increasing penetration of DERs across
North America. NERC SPIDERWG membership includes
distribution and transmission entities across North America,
and the body is focusing on four primary topics: advancing
aggregate DER modeling capabilities, verifying DER models
and performance, developing study techniques with increasing penetration of DERs, and coordination between industry stakeholders.

Summary
While some may argue that the BPS is becoming obsolete
in the face of DERs, others believe that it has never been
more critical for the reliable delivery of power to end-use
customers. However, we can all agree that the breadth of
the DER impact on BPS reliability is immense. For now,
we are focused on ride-through capability, evolving modeling and study techniques, changing control strategies and
requirements, adjusting market designs, and the impending
growth of energy storage. Interconnection standards are
rapidly evolving to keep up with the transition from centralized control to truly distributed and decentralized architectures. Requirements for grid connection are more important
now than ever before, and engagement from transmission
providers and grid operators is essential for maintaining
BPS reliability. Proactive improvements to interconnection
requirements are imperative since retrofitting legacy DERs
is cost prohibitive.
DERs pose one of the biggest evolutions in BPS planning and operation since the inception of polyphase ac
power systems more than 130 years ago. Anyone who generates, transfers, controls, delivers, or utilizes electric energy
should commit to these reliability efforts as we move toward
an integrated energy system. Historically, these resources
acted passively and were even required to trip offline during
disturbances, but they are becoming a major component of
the grid and must actively support it as a whole, including the
mitigation of variability impacts and maintaining adequate
levels of reliability at a reasonable cost. The successful path
forward involves collaboration, communication, and coordination among these groups, breaking down barriers that
have existed for many years.
november/december 2019

For Further Reading
Australia Energy Markets Operator. (2019). "Final Report:
Queensland and South Australia system separation on 25
August 2018." Australia Energy Markets Operator. Melbourne,
Australia. [Online]. Available: https://www.aemo.com.au/-/
media/Files/Electricity/NEM/Market_Notices_and_Events/
Power_System_Incident_Reports/2018/Qld---SA-Separation
-25-August-2018-Incident-Report.pdf
Australia Energy Markets Operator. (2019). "Technical integration of distributed energy resources." Australia Energy
Markets Operator. Melbourne, Australia. [Online]. Available:
http://www.aemo.com.au/-/media/Files/Electricity/NEM/
DER/2019/Technical-Integration/Technical-Integration-of
-DER-Report.pdf
NYISO. (2017). "Distributed energy resources roadmap
for New York's wholesale electricity markets." NYISO. Rensselaer, NY. [Online]. Available: https://www.nyiso.com/docu
ments/20142/1391862/Distributed_Energy_Resources_Road
map.pdf/ec0b3b64-4de2-73e0-ffef-49a4b8b1b3ca
NYISO. (2017) "Distributed energy resources market design concept proposal." NYISO. Rensselaer, NY. [Online].
Available: https://www.nyiso.com/documents/20142/1391862/
Distributed-Energy-Resources-2017-Market-Design-ConceptProposal.pdf/122a815f-b767-e67f-0a8f-323e5489c2b1
California ISO. (2019). "2018-2019 transmission plan."
California Independent System Operator. Folsom, CA.
[Online]. Available: http://www.caiso.com/Documents/
RevisedDraft-2018-2019_Transmission_Plan.pdf
North American Electric Reliability Corporation. (2017).
"Reliability guideline: Distributed energy resource modeling."
North American Electric Reliability Corp. Atlanta, GA. [Online]. Available: https://www.nerc.com/comm/PC_Reliability
_Guidelines_DL/Reliability_Guideline_-_DER_Modeling
_Parameters_-_2017-08-18_-_FINAL.pdf
North American Electric Reliability Corporation. (2017).
"Distributed energy resources: Connection modeling and reliability considerations." North American Electric Reliability Corp. Atlanta, GA. [Online]. Available: https://www.nerc
.com/comm/Other/essntlrlbltysrvcstskfrcDL/Distributed
_Energy_Resources_Report.pdf

Biographies
Ryan Quint is with the North American Electric Reliability
Corporation, Portland, Oregon.
Lisa Dangelmaier is with Hawai'i Electric Light, Hilo.
Irina Green is with California ISO, Folsom.
David Edelson is with NYISO, Rensselaer, New York.
Vijaya Ganugula is with NYISO, Rensselaer, New York.
Robert Kaneshiro is with Hawai'i Electric Light, Hilo.
James Pigeon is with NYISO, Rensselaer, New York.
Bill Quaintance is with Duke Energy, Raleigh, North Carolina.
Jenny Riesz is with Australian Energy Market Operator,
Melbourne, Australia.
Naomi Stringer is with the University of New South
p&e
Wales, Sydney.
ieee power & energy magazine

https://www.aemo.com.au/-/media/Files/Electricity/NEM/Market_Notices_and_Events/Power_System_Incident_Reports/2018/Qld---SA-Separation-25-August-2018-Incident-Report.pdf https://www.aemo.com.au/-/media/Files/Electricity/NEM/Market_Notices_and_Events/Power_System_Incident_Reports/2018/Qld---SA-Separation-25-August-2018-Incident-Report.pdf https://www.aemo.com.au/-/media/Files/Electricity/NEM/Market_Notices_and_Events/Power_System_Incident_Reports/2018/Qld---SA-Separation-25-August-2018-Incident-Report.pdf https://www.aemo.com.au/-/media/Files/Electricity/NEM/Market_Notices_and_Events/Power_System_Incident_Reports/2018/Qld---SA-Separation-25-August-2018-Incident-Report.pdf http://www.aemo.com.au/-/media/Files/Electricity/NEM/DER/2019/Technical-Integration/Technical-Integration-of-DER-Report.pdf http://www.aemo.com.au/-/media/Files/Electricity/NEM/DER/2019/Technical-Integration/Technical-Integration-of-DER-Report.pdf http://www.aemo.com.au/-/media/Files/Electricity/NEM/DER/2019/Technical-Integration/Technical-Integration-of-DER-Report.pdf https://www.nyiso.com/documents/20142/1391862/Distributed_Energy_Resources_Roadmap.pdf/ec0b3b64-4de2-73e0-ffef-49a4b8b1b3ca https://www.nyiso.com/documents/20142/1391862/Distributed_Energy_Resources_Roadmap.pdf/ec0b3b64-4de2-73e0-ffef-49a4b8b1b3ca https://www.nyiso.com/documents/20142/1391862/Distributed_Energy_Resources_Roadmap.pdf/ec0b3b64-4de2-73e0-ffef-49a4b8b1b3ca https://www.nyiso.com/documents/20142/1391862/Distributed-Energy-Resources-2017-Market-Design-Concept-Proposal.pdf/122a815f-b767-e67f-0a8f-323e5489c2b1 https://www.nyiso.com/documents/20142/1391862/Distributed-Energy-Resources-2017-Market-Design-Concept-Proposal.pdf/122a815f-b767-e67f-0a8f-323e5489c2b1 https://www.nyiso.com/documents/20142/1391862/Distributed-Energy-Resources-2017-Market-Design-Concept-Proposal.pdf/122a815f-b767-e67f-0a8f-323e5489c2b1 http://www.caiso.com/Documents/RevisedDraft-2018-2019_Transmission_Plan.pdf http://www.caiso.com/Documents/RevisedDraft-2018-2019_Transmission_Plan.pdf https://www.nerc.com/comm/PC_Reliability_Guidelines_DL/Reliability_Guideline_-_DER_Modeling_Parameters_-_2017-08-18_-_FINAL.pdf https://www.nerc.com/comm/PC_Reliability_Guidelines_DL/Reliability_Guideline_-_DER_Modeling_Parameters_-_2017-08-18_-_FINAL.pdf https://www.nerc.com/comm/PC_Reliability_Guidelines_DL/Reliability_Guideline_-_DER_Modeling_Parameters_-_2017-08-18_-_FINAL.pdf https://www.nerc.com/comm/Other/essntlrlbltysrvcstskfrcDL/Distributed_Energy_Resources_Report.pdf https://www.nerc.com/comm/Other/essntlrlbltysrvcstskfrcDL/Distributed_Energy_Resources_Report.pdf https://www.nerc.com/comm/Other/essntlrlbltysrvcstskfrcDL/Distributed_Energy_Resources_Report.pdf

IEEE Power & Energy Magazine - November/December 2019

Table of Contents for the Digital Edition of IEEE Power & Energy Magazine - November/December 2019