WSP01318

• File Number: 8220.101.08
• Description: Glen Canyon Dam/Lake Powell
• State: AZ
• Basin: Colorado Mainstem
• Date: 5/1/1994
• Author: Western Area Power A
• Title: Glen Canyon Dam Interim Operations - Estimated Net Expense - December 1993 through March 1994
• Water Supply Pro - Doc Type: Report/Study

Average Base Case monthly purchase prices are estimated as follows:

ENERGY PURCHASE PRICES
Base Case Actual
Months Offpeak On peak Offpeak On peak
December 1993 $l6.34/MWh S24.07/MWh $16.44/MWh $24.08/MWh
January 1994 15.97/MWh 21. 80 /MWh 15.97jMWh 21. 86 /MWh
February 1994 16.16/MWh 24.24/1-1Wh 16.26/1-1Wh 24.2B/MWh
March 1994 16.43/MWh 23.48/MWh 16.52/MWh 23.49/MWh

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E. Economy Energy Sales Prices--Base Case and Actual

The sales price for the Base Case is determined with the help of
the Montrose Power Control Staff (Montrose). The estimate of
economy energy sales prices involve three steps:

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1. Identification of the range of market prices through review of
Montrose District Office Power Control staff's summaries of
then-current weekly market prices, as reflected in Western's
Weekly Reports to the Secretary.

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2. Review of the actual monthly economy energy sales summary and,
with the help of the Power Control staff, identification of
those forced sales directly associated with interim release
constraints.

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3. Assumption of expected sales price based on then-current
market conditions for that portion of sales identified in
step 2.

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In most instances, Western would have had the flexibility of
making all or most of the nonfirm energy sales during periods
when the value is greatest. For all months, the economy
energy sales prices under the Base Case is the same as the
actual sales price, reflecting no forced sales within this
period.

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