WSP02437

• File Number: 8220.100.50
• Description: CRSP - Power Issues
• Basin: Colorado Mainstem
• Date: 1/1/1982
• Author: West. Sys. Coord. Co
• Title: Western Systems Coordinating Council Ten-Year Coordinated Plan Summary 1982 - 1991
• Water Supply Pro - Doc Type: Publication

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9

LOADS AND RESOURCES

The Planning Coordination Committee is charged with the
responsibility for annually collecting and reporting the WSCC Member
Systems' plans for meeting the region's projected power requirements. A
summary of the load and resource data is reported in this section.

Beginning with Figure 1 on page 14, the information presented
herein via tables and figures summarizes load and resource information for
the WSCC region. Additional information follows for each of the four
major areas within WSCC--Northwest Power Pool Area (NWPP), Rocky Mountain
Power Area (RMPA), Arizona-New Mexico Power Area (AZ-NM) and California-
Nevada Power Area (CA-NV). Introducing the data for each area is a map of
the area, a list of organizations within that area which have been
assigned a code for data collection (some of these organizations collect
data from smaller organizations in the area), and a figure depicting the
area's load and resource history (1971-1981) and current ten-year
projection (1982-1991). The data which were used in plotting the
historical load and resource curves are included in the Appendix.

Table 1 summarizes the 1981 actual monthly load and resource
data for the WSCC region and provides a comparison with the total peak and
energy loads that were projected as of January 1, 1981. The WSCC 1981
non-coincidental peak load of 83,966 MW which occurred in August
represents a 3.5 percent increase compared with the 1980 calendar peak
load of 81,129 MW which occurred in July. The 1981 peak load was 1.3
percent below that forecasted for AU9ust. Installed generating capacity
at the time of the summer peak was 119,368 MW.

The WSCC non-coincidental peak load occurred during the winter
months in the calendar years 1978 and 1979 due to the extremely cold
temperatures experienced throughout the WSCC region. Winter weather
conditions experienced during 1980 and 1981 were less severe than the
previous two years. The calendar 1981 winter peak load of 78,622 MW was
2.2 percent less than the calendar 1980 winter peak load due to the mild
1981 winter and associated reduced peak load experienced within the
Northwest Power Pool Area (see Figure 6).

The 1981 total net energy requirement reported for the WSCC
region (506,807 GWH) was 4.5 percent greater than the reported 19BO total
net energy requirement (485,159 GWH). The 1981 energy requirement for the
region was 2.9 percent below that forecasted for the year. Conservation
efforts, depressed economic conditions and mild temperatures experienced
during 1981 are factors which contributed to a lower energy requirement
than that forecasted for the year. Actual loads which were lower than
projected are indicated by negative forecast deviations. The negative
forecast deviations reflect the effects of conservation efforts, the
economic climate and mild weather experienced in the West during the year.

Hydro conditions were near median throughout most of the WSCC
region during 1981. As a result of these conditions the hydroelectric
energy produced by the U.S. Systems of WSCC was 184,915 GWH, 0.3 percent