IEEE Power & Energy Magazine - March/April 2021 - 21

Planned Projects by County
40-250 MW
251-450 MW
451-780 MW
781-1,400 MW
Operational Wind Units
Major Cities

Dallas

Austin
Houston
San Antonio

march/april 2021

70,000

12,000

60,000

10,000

50,000
Load (MW)

8,000

40,000

6,000

30,000

4,000

20,000

2,000

10,000

0

0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24

voluntary financial day-ahead
market and traded in the realtime energy market. The ERCOT
electricity market processes have
evolved to incorporate frequent
updates on changes in system
conditions. This allows effective
system adjustments to uncertainty
and power output variability of
wind and solar resources over multiple timeframes, from seven days
ahead to real-time operation.
Figure 5 illustrates ERCOT
energy and ancillary services market processes, starting from the
day ahead and going into real time.
The day-ahead market is a voluntary financial market where
energy and ancillary services for

Wind Power Production (MW)

figure 3. An ERCOT map with operational and planned wind generation resources and major cities illustrating where
main load centers are located.

Hour Ending
Load

Coastal Wind

West/Panhandle Wind

figure 4. The differences in diurnal wind power production patterns between the
Coastal zone and West/Panhandle zone and the system load on a typical summer day.
ieee power & energy magazine

21



IEEE Power & Energy Magazine - March/April 2021

Table of Contents for the Digital Edition of IEEE Power & Energy Magazine - March/April 2021

Contents
IEEE Power & Energy Magazine - March/April 2021 - Cover1
IEEE Power & Energy Magazine - March/April 2021 - Cover2
IEEE Power & Energy Magazine - March/April 2021 - Contents
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IEEE Power & Energy Magazine - March/April 2021 - Cover3
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