IEEE Power & Energy Magazine - March/April 2020 - 8

letters to the editor

share your thoughts
send comments to mih.psat@gmail.com

R

READERS ARE ENCOURAGED TO
share their views on issues affecting the
electric power engineering profession.
Send your letters to Michael Henderson,
editor-in-chief, at mih.psat@gmail.com.
Letters may be edited for publication.

Grid Architecture
I found the September/October 2019
issue of IEEE Power & Energy Magazine (vol. 17, no. 5) to be very interesting
r e a d i ng; it prov ide d go o d ba ckground information and posed some
novel approaches. However, the thrust
of this issue seems to imply that the existing grid architecture is the problem
and that the solution to our future grid
challenges is to change the existing
grid architecture to accommodate the
proliferation of renewable generation
and changing customer expectations.
I do not believe that is the case. Also,
the articles failed to recognize that, at
this time, the biggest driver to higher
renewable energy adoption is state and
federal energy policy and not necessarily economics or new markets.
In my opinion, the energy policies
have done a remarkable job of stimulating this infant industry and driving
down renewable energy costs. However,
the anticipated grid problems are also
created by overzealous approaches to
encouraging the adoption of renewable
generation in California and other states.
I believe we may need to address the root
cause of the problems rather than rebuild

the whole grid architecture to address
the symptoms.
We have a choice: leave the current
implementation policy as is and mitigate
afterward (including modifying the grid architecture with the associated
modification costs) or
modify the implementation policy to take grid
needs into account on
the front end and avoid
most of the grid issues
at high penetration levels
later. It may be prudent
to require that future renewable generators be
designed to provide controllable capabilities similar to those of conventional generators. This
way, we may be able to
use renewable generators
to help serve the load,
avoid duck curve issues,
and bypass the need for a separate fleet
of flexible resources at very high penetration levels. This may reduce the need to
upgrade existing grid-control computer
systems that are not set up to communicate and control large numbers of distributed energy resources. Once these steps
have been taken, the existing grid transmission and distribution infrastructure
may not require any major modifications.
-Chase Sun

In my opinion,
the energy
policies
have done a
remarkable job
of stimulating
this infant
industry and
driving down
renewable
energy costs.

Guest Editors' Response
Digital Object Identifier 10.1109/MPE.2019.2959285
Date of current version: 19 February 2020

8	

ieee power & energy magazine	

stable, reliable, and affordable future of
electric power systems. However, the letter imputes to us several notions that we
did not, in fact, state or imply. The letter
reflects a false assumption that we were criticizing 20th-century grid
engineering. Instead, the
articles in the September/October 2019 issue
pointed out several challenges that are impacting requirements for grid
operation. These requirements are changing, and
our premise was that attention to operating principles, organizational
concepts, and structure
is crucial to informing
the decisions necessary
for adaptation.
In "Grid Architecture"
[1], the author states, "New
developments are largely
driven by evolving consumer expectations, the emergence of new technologies, and the change from central economies of scale to network economies. The
latter is driven by increased penetration
of distributed energy resources (DERs)
connected at the distribution level ('the
grid edge') and by ubiquitous communication connectivity. Additional drivers
include deficiencies in resilience and increasing threat of cyberattack." The letter
writer is right to point out that government
policy decisions give rise to new challenges and changing grid requirements,
as do changing economic, geographic,

We appreciate and share our power engineering colleague's concern for the safe,

march/april 2020



IEEE Power & Energy Magazine - March/April 2020

Table of Contents for the Digital Edition of IEEE Power & Energy Magazine - March/April 2020

Contents
IEEE Power & Energy Magazine - March/April 2020 - Contents
IEEE Power & Energy Magazine - March/April 2020 - Cover2
IEEE Power & Energy Magazine - March/April 2020 - 1
IEEE Power & Energy Magazine - March/April 2020 - 2
IEEE Power & Energy Magazine - March/April 2020 - 3
IEEE Power & Energy Magazine - March/April 2020 - 4
IEEE Power & Energy Magazine - March/April 2020 - 5
IEEE Power & Energy Magazine - March/April 2020 - 6
IEEE Power & Energy Magazine - March/April 2020 - 7
IEEE Power & Energy Magazine - March/April 2020 - 8
IEEE Power & Energy Magazine - March/April 2020 - 9
IEEE Power & Energy Magazine - March/April 2020 - 10
IEEE Power & Energy Magazine - March/April 2020 - 11
IEEE Power & Energy Magazine - March/April 2020 - 12
IEEE Power & Energy Magazine - March/April 2020 - 13
IEEE Power & Energy Magazine - March/April 2020 - 14
IEEE Power & Energy Magazine - March/April 2020 - 15
IEEE Power & Energy Magazine - March/April 2020 - 16
IEEE Power & Energy Magazine - March/April 2020 - 17
IEEE Power & Energy Magazine - March/April 2020 - 18
IEEE Power & Energy Magazine - March/April 2020 - 19
IEEE Power & Energy Magazine - March/April 2020 - 20
IEEE Power & Energy Magazine - March/April 2020 - 21
IEEE Power & Energy Magazine - March/April 2020 - 22
IEEE Power & Energy Magazine - March/April 2020 - 23
IEEE Power & Energy Magazine - March/April 2020 - 24
IEEE Power & Energy Magazine - March/April 2020 - 25
IEEE Power & Energy Magazine - March/April 2020 - 26
IEEE Power & Energy Magazine - March/April 2020 - 27
IEEE Power & Energy Magazine - March/April 2020 - 28
IEEE Power & Energy Magazine - March/April 2020 - 29
IEEE Power & Energy Magazine - March/April 2020 - 30
IEEE Power & Energy Magazine - March/April 2020 - 31
IEEE Power & Energy Magazine - March/April 2020 - 32
IEEE Power & Energy Magazine - March/April 2020 - 33
IEEE Power & Energy Magazine - March/April 2020 - 34
IEEE Power & Energy Magazine - March/April 2020 - 35
IEEE Power & Energy Magazine - March/April 2020 - 36
IEEE Power & Energy Magazine - March/April 2020 - 37
IEEE Power & Energy Magazine - March/April 2020 - 38
IEEE Power & Energy Magazine - March/April 2020 - 39
IEEE Power & Energy Magazine - March/April 2020 - 40
IEEE Power & Energy Magazine - March/April 2020 - 41
IEEE Power & Energy Magazine - March/April 2020 - 42
IEEE Power & Energy Magazine - March/April 2020 - 43
IEEE Power & Energy Magazine - March/April 2020 - 44
IEEE Power & Energy Magazine - March/April 2020 - 45
IEEE Power & Energy Magazine - March/April 2020 - 46
IEEE Power & Energy Magazine - March/April 2020 - 47
IEEE Power & Energy Magazine - March/April 2020 - 48
IEEE Power & Energy Magazine - March/April 2020 - 49
IEEE Power & Energy Magazine - March/April 2020 - 50
IEEE Power & Energy Magazine - March/April 2020 - 51
IEEE Power & Energy Magazine - March/April 2020 - 52
IEEE Power & Energy Magazine - March/April 2020 - 53
IEEE Power & Energy Magazine - March/April 2020 - 54
IEEE Power & Energy Magazine - March/April 2020 - 55
IEEE Power & Energy Magazine - March/April 2020 - 56
IEEE Power & Energy Magazine - March/April 2020 - 57
IEEE Power & Energy Magazine - March/April 2020 - 58
IEEE Power & Energy Magazine - March/April 2020 - 59
IEEE Power & Energy Magazine - March/April 2020 - 60
IEEE Power & Energy Magazine - March/April 2020 - 61
IEEE Power & Energy Magazine - March/April 2020 - 62
IEEE Power & Energy Magazine - March/April 2020 - 63
IEEE Power & Energy Magazine - March/April 2020 - 64
IEEE Power & Energy Magazine - March/April 2020 - 65
IEEE Power & Energy Magazine - March/April 2020 - 66
IEEE Power & Energy Magazine - March/April 2020 - 67
IEEE Power & Energy Magazine - March/April 2020 - 68
IEEE Power & Energy Magazine - March/April 2020 - 69
IEEE Power & Energy Magazine - March/April 2020 - 70
IEEE Power & Energy Magazine - March/April 2020 - 71
IEEE Power & Energy Magazine - March/April 2020 - 72
IEEE Power & Energy Magazine - March/April 2020 - 73
IEEE Power & Energy Magazine - March/April 2020 - 74
IEEE Power & Energy Magazine - March/April 2020 - 75
IEEE Power & Energy Magazine - March/April 2020 - 76
IEEE Power & Energy Magazine - March/April 2020 - 77
IEEE Power & Energy Magazine - March/April 2020 - 78
IEEE Power & Energy Magazine - March/April 2020 - 79
IEEE Power & Energy Magazine - March/April 2020 - 80
IEEE Power & Energy Magazine - March/April 2020 - 81
IEEE Power & Energy Magazine - March/April 2020 - 82
IEEE Power & Energy Magazine - March/April 2020 - 83
IEEE Power & Energy Magazine - March/April 2020 - 84
IEEE Power & Energy Magazine - March/April 2020 - 85
IEEE Power & Energy Magazine - March/April 2020 - 86
IEEE Power & Energy Magazine - March/April 2020 - 87
IEEE Power & Energy Magazine - March/April 2020 - 88
IEEE Power & Energy Magazine - March/April 2020 - 89
IEEE Power & Energy Magazine - March/April 2020 - 90
IEEE Power & Energy Magazine - March/April 2020 - 91
IEEE Power & Energy Magazine - March/April 2020 - 92
IEEE Power & Energy Magazine - March/April 2020 - 93
IEEE Power & Energy Magazine - March/April 2020 - 94
IEEE Power & Energy Magazine - March/April 2020 - 95
IEEE Power & Energy Magazine - March/April 2020 - 96
IEEE Power & Energy Magazine - March/April 2020 - Cover3
IEEE Power & Energy Magazine - March/April 2020 - Cover4
https://www.nxtbook.com/nxtbooks/pes/powerenergy_070820
https://www.nxtbook.com/nxtbooks/pes/powerenergy_050620
https://www.nxtbook.com/nxtbooks/pes/powerenergy_030420
https://www.nxtbook.com/nxtbooks/pes/powerenergy_010220
https://www.nxtbook.com/nxtbooks/pes/powerenergy_111219
https://www.nxtbook.com/nxtbooks/pes/powerenergy_091019
https://www.nxtbook.com/nxtbooks/pes/powerenergy_070819
https://www.nxtbook.com/nxtbooks/pes/powerenergy_050619
https://www.nxtbook.com/nxtbooks/pes/powerenergy_030419
https://www.nxtbook.com/nxtbooks/pes/powerenergy_010219
https://www.nxtbook.com/nxtbooks/pes/powerenergy_111218
https://www.nxtbook.com/nxtbooks/pes/powerenergy_091018
https://www.nxtbook.com/nxtbooks/pes/powerenergy_070818
https://www.nxtbook.com/nxtbooks/pes/powerenergy_050618
https://www.nxtbook.com/nxtbooks/pes/powerenergy_030418
https://www.nxtbook.com/nxtbooks/pes/powerenergy_010218
https://www.nxtbook.com/nxtbooks/pes/powerenergy_111217
https://www.nxtbook.com/nxtbooks/pes/powerenergy_091017
https://www.nxtbook.com/nxtbooks/pes/powerenergy_070817
https://www.nxtbook.com/nxtbooks/pes/powerenergy_050617
https://www.nxtbook.com/nxtbooks/pes/powerenergy_030417
https://www.nxtbook.com/nxtbooks/pes/powerenergy_010217
https://www.nxtbook.com/nxtbooks/pes/powerenergy_111216
https://www.nxtbook.com/nxtbooks/pes/powerenergy_091016
https://www.nxtbook.com/nxtbooks/pes/powerenergy_070816
https://www.nxtbook.com/nxtbooks/pes/powerenergy_050616
https://www.nxtbook.com/nxtbooks/pes/powerenergy_030416
https://www.nxtbook.com/nxtbooks/pes/powerenergy_010216
https://www.nxtbook.com/nxtbooks/ieee/powerenergy_010216
https://www.nxtbook.com/nxtbooks/pes/powerenergy_111215
https://www.nxtbook.com/nxtbooks/pes/powerenergy_091015
https://www.nxtbook.com/nxtbooks/pes/powerenergy_070815
https://www.nxtbook.com/nxtbooks/pes/powerenergy_050615
https://www.nxtbook.com/nxtbooks/pes/powerenergy_030415
https://www.nxtbook.com/nxtbooks/pes/powerenergy_010215
https://www.nxtbook.com/nxtbooks/pes/powerenergy_111214
https://www.nxtbook.com/nxtbooks/pes/powerenergy_091014
https://www.nxtbook.com/nxtbooks/pes/powerenergy_070814
https://www.nxtbook.com/nxtbooks/pes/powerenergy_050614
https://www.nxtbook.com/nxtbooks/pes/powerenergy_030414
https://www.nxtbook.com/nxtbooks/pes/powerenergy_010214
https://www.nxtbookmedia.com