TABLE 8.5 WEEKLY PEAK POWER DEMANDS AUGUST SEPTEMBER ОСТОВER NOVEMBER Year 1 3 5 6 7 8. 9 10 11 12 13 1 2,050 1,925 1,825 1,525 1,050 1,300 1,200 1,175 1,350 1,525 1,725 1,575 1,925 2,000 2,075 2,225 1,800 1,175 1,050 1,250 1,025 1,300 1,425 1,625 1,950 1,950 1,950 1,800 2,150 1,725 1,575 1,275 1,325 1,100 1,500 1,550 1,375 1,825 2,000 2,100 2,400 1,975 1,675 1,350 1,525 1,500 1,150 1,350 1,225 1,225 1,475 1,850 2,275 2,300 2,150 1,525 1,350 1,475 1,475 1,175 1,375 1,400 1,425 1,550 1,900 2. 2. 3. 4. 5.

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Tom Glass forecasts electrical demand for the Flatlands
Public Power District (FPPD). The FPPD wants to take its
Comstock power plant out of service for maintenance when
demand is expected to be low. After shutdown, performing
maintenance and getting the plant back on line takes two
weeks. The utility has enough other generating capacity to
satisfy 1,550 megawatts (MW) of demand while Comstock
is out of service. Table 8.5 shows weekly peak demands
(in MW) for the past several autumns. When next in year 6
should the Comstock plant be scheduled for maintenance?

TABLE 8.5
WEEKLY PEAK POWER DEMANDS
AUGUST
SEPTEMBER
ОСТОВER
NOVEMBER
Year
1
3
5
6
7
8.
9
10
11
12
13
1
2,050
1,925
1,825
1,525
1,050
1,300
1,200
1,175
1,350
1,525
1,725
1,575
1,925
2,000
2,075
2,225
1,800
1,175
1,050
1,250
1,025
1,300
1,425
1,625
1,950
1,950
1,950
1,800
2,150
1,725
1,575
1,275
1,325
1,100
1,500
1,550
1,375
1,825
2,000
2,100
2,400
1,975
1,675
1,350
1,525
1,500
1,150
1,350
1,225
1,225
1,475
1,850
2,275
2,300
2,150
1,525
1,350
1,475
1,475
1,175
1,375
1,400
1,425
1,550
1,900
2.
2.
3.
4.
5.
Transcribed Image Text:TABLE 8.5 WEEKLY PEAK POWER DEMANDS AUGUST SEPTEMBER ОСТОВER NOVEMBER Year 1 3 5 6 7 8. 9 10 11 12 13 1 2,050 1,925 1,825 1,525 1,050 1,300 1,200 1,175 1,350 1,525 1,725 1,575 1,925 2,000 2,075 2,225 1,800 1,175 1,050 1,250 1,025 1,300 1,425 1,625 1,950 1,950 1,950 1,800 2,150 1,725 1,575 1,275 1,325 1,100 1,500 1,550 1,375 1,825 2,000 2,100 2,400 1,975 1,675 1,350 1,525 1,500 1,150 1,350 1,225 1,225 1,475 1,850 2,275 2,300 2,150 1,525 1,350 1,475 1,475 1,175 1,375 1,400 1,425 1,550 1,900 2. 2. 3. 4. 5.
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