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<br />, '~acific Northwest
<br />Accordipg to the Bonneville Power Administration
<br />(BPA), the reservoirs in the Pacific Northwest will be
<br />about 70 perbent full on July 31, the date which is the
<br />traditional end of the spring runoff. This will mean a
<br />deficiency of about 12 million acre-feet of storage or
<br />13,500 GWh, of' equivalent energy. Other estimates range to
<br />15,000 GWh. : This deficiency is about 10 percent of the
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<br />average annUlH generation of the area and has led to the
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<br />termination af service to interruptible customers by
<br />utilities in ,the area. In spite of an emergency draft of
<br />advance energy from Canadian Treaty storage, the industrial
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<br />interruptible load (which is about 25 percent of the total
<br />industrial lciad) has dropped by over 50 percent.
<br />It is anticipated that this summer there will be no
<br />secondary or $urplus energy available in the Northwest for
<br />export over t;he in terties to the California utili ties. By
<br />comparison, in 1975 the Bonneville system exported over
<br />9,000 GWh of honfirm energy to California.
<br />The net impact in the Pacific Northwest is that there
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<br />appears to be. sufficient storage in the reservoirs so that
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<br />with the help.of additional thermal generation the utilities
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<br />can supply th~ir loads during the 1977 season, given loads as
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<br />forecasted, nq problems with the thermal generating equipment,
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<br />and successful voluntary curtailments in addition to the
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<br />continuation of non delivery to interruptible customers.
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<br />24
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