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

1982-1991 NUCLEAR AND COAL ADDITIONS -- MW

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60

The commercial operations dates of Diablo Canyon Units 1 and 2
(2190 MW) have once again been delayed. Currently Unit 1 is scheduled for
operation in August 1982 and Unit 2 is scheduled for operation in May
1983. Units 1 and 2 have been delayed over a year since the last report.
The continued delay of these units has had a significant impact on the
fossil fuel requirements in Northern California as these two units have
the capability Df annually displacing 18 million barrels of oil.

If California utilities are unable to obtain licenses and
operate the two nuclear units (Diablo Canyon Unit 1 and San Onofre Unit 2)
which are scheduled for operation in 1982, oil-burn requirements will
probably, increase by nearly 50,000 barrels per day.

Lead times for the various types of thermal generation additions
have increased significantly since 1967 as shown below.
THERMAL GENERATION LEAD TIME -- MONTHS
Generation
Type 1967 1972 1975 1976 1977 -81
Nuclear 78 120 120-144 120-168 120-183
Coal 66 96 72-114 76-125 76-134
Oil and Gas 54 78
Combined Cycle N.A. 60 36-88 48-94 54-95
Combustion Turbine 18 24 36-74 38-86 32-81

Anticipated lead times have not increased significantly since
1977. The wide ranges reported for 1975, 1976 and 1977-81 are a
reflection of the different state regulatory processes within the WSCC
region. The upper end of these ranges is due in part to the lengthy
California regulatory process. Lead times for "Oil and Gas" are not
tabulated beyond 1972 as they are no longer considered a viable option
under the Nation's energy plan for oil and gas conservation. The last new
base load conventional oil-fired unit planned for the region was placed in
service during 1978.

The net generation additions (45,680 MW) planned for the
1982-1991 period include a net 34,785 MW of base load nuclear and
coal-fired generation. The table below provides the current status of
these nuclear and coal-fired facilities.

Percent
of
Status Nuclear Coal Total Total
Under Construction 11,790 8,285 20,075 56.4
Licensing Process 1,275 4,400 5,675 16.0
Planning Phase 0 9,800 9,800 27.6
Total 13,065 22,485 35,550 ' 100.0