IEEE Power & Energy Magazine - November/December 2017 - 80
0.20
65,000
0.10
60,000
0.00
0
1
2
3
4
5
6
7
8
Summer
100,000
MISO Total Load
9 10 11 12 13 14 15 16 17 18 19 20 21 22 23
Time of Day
0.60
0.40
80,000
0.20
70,000
0.00
0
1
2
3
4
5
6
7
8
9 10 11 12 13 14 15 16 17 18 19 20 21 22 23
Time of Day
-0.20
Fall
85,000
MISO Total Load
0.80
90,000
60,000
-0.10
0.50
0.40
80,000
0.30
75,000
0.20
70,000
0.10
65,000
60,000
0.00
0
1
2
3
4
5
6
7
8
9 10 11 12 13 14 15 16 17 18 19 20 21 22 23
Time of Day
Winter
85,000
0.50
0.40
80,000
0.30
75,000
0.20
70,000
0.10
65,000
60,000
-0.10
0.00
0
1
2
3
4
5
6
7
8
9 10 11 12 13 14 15 16 17 18 19 20 21 22 23
Time of Day
Average ELMP MEC Increase
-0.10
ELMP MEC-LMP MEC
0.30
70,000
ELMP MEC-LMP MEC
75,000
ELMP MEC-LMP MEC
MISO Total Load
0.40
55,000
MISO Total Load
0.50
80,000
ELMP MEC-LMP MEC
Spring
85,000
Average MISO Load
Source: MISO
figure 8. Seasonal comparisons of ELMP and LMP. MEC: marginal energy component.
tighten, an RTO may deploy demand-side resources more
frequently. To address the innate needs of efficient prices,
RTOs have initiated efforts such as MISO's pricing enhancement of emergency energy and demand response resources,
as illustrated in Figure 9. The enhancement, which went live
in July 2016, successfully prevented price depression several
times when MISO proceeded into emergency capacity shortage conditions.
80
ieee power & energy magazine
Incorporating New Technologies
Typically, the bulk power system operated by the ISO includes
the transmission grid at 100 kV and above. A fundamental
element of maintaining grid reliability is ensuring that the
current transmission grid conditions using real-time telemetry are visible to the ISO. Commonly, the ISO's network
model used in planning or operations includes the interface
between the transmission and distribution system by loads.
november/december 2017
Table of Contents for the Digital Edition of IEEE Power & Energy Magazine - November/December 2017
IEEE Power & Energy Magazine - November/December 2017 - Cover1
IEEE Power & Energy Magazine - November/December 2017 - Cover2
IEEE Power & Energy Magazine - November/December 2017 - 1
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IEEE Power & Energy Magazine - November/December 2017 - 116
IEEE Power & Energy Magazine - November/December 2017 - Cover3
IEEE Power & Energy Magazine - November/December 2017 - Cover4
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