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<br /> <br />:0:1"'. ~ A)\~e:: <br />~ . " , . ,~~ <br /> <br />Th~ WSCC bulk power transmission system, <br /> <br />'. <br /> <br />because of physical and technical factors not totally <br />controllable at this time, experiences unplanned network <br /> <br />"loop f19w" which at times can constrain energy movements. <br /> <br />Explanation of "loop flow" is highly technical and will <br /> <br />not be gone into here. <br /> <br />ELECTRIC ENERGY FROM CANADA <br /> <br />Electric power interconnection between electric <br /> <br />utilities in the United States and electric utilities in <br /> <br />the Dominion of Canada range from single phase distri- <br /> <br />bution feeders supplying customers near the international <br /> <br />boundary to 500 KV bulk power lines capable of transferring <br /> <br />very large blocks of electric energy. No export duty is <br /> <br />imposed ~y either the United States or Canada on energy <br /> <br />transfers, No specific authorization for the import of <br /> <br />electricity is required by either nation, although authoriza- <br /> <br />tion is required for exports. <br /> <br />In 1975 approximately 4.1 <br /> <br />perdent of the total electric energy generated ~n Canada <br /> <br />was sold to U.S. utilities in the East, the West and the <br /> <br />Midwest. <br /> <br />Curr$nt authorizations by the Canadian National <br /> <br />Energy Board will permit the total firm export of <br /> <br />7,935 GWhin 1977. Another 21,321 GWh o~ interruptible <br /> <br />electric ~nergy flow to the U.S. is authorized in 1977. <br /> <br />31 <br /> <br /> <br />'. <br /> <br />';~'.'l:<~li;i; <br />':""'<i""."~'~~"'~ <br />