    <SEC-DOCUMENT>0000104918-18-000050-index.html : 20180321
    <SEC-HEADER>0000104918-18-000050.hdr.sgml : 20180321
    <ACCEPTANCE-DATETIME>20180320194844
    ACCESSION NUMBER:		0000104918-18-000050
    CONFORMED SUBMISSION TYPE:	8-K
    PUBLIC DOCUMENT COUNT:		29
    CONFORMED PERIOD OF REPORT:	20180321
    ITEM INFORMATION:		Regulation FD Disclosure
    ITEM INFORMATION:		Financial Statements and Exhibits
    FILED AS OF DATE:		20180321
    DATE AS OF CHANGE:		20180320

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			AVISTA CORP
    		CENTRAL INDEX KEY:			0000104918
    		STANDARD INDUSTRIAL CLASSIFICATION:	ELECTRIC & OTHER SERVICES COMBINED [4931]
    		IRS NUMBER:				910462470
    		STATE OF INCORPORATION:			WA
    		FISCAL YEAR END:			1231

    	FILING VALUES:
    		FORM TYPE:		8-K
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	001-03701
    		FILM NUMBER:		18703131

    	BUSINESS ADDRESS:
    		STREET 1:		1411 E MISSION AVE
    		CITY:			SPOKANE
    		STATE:			WA
    		ZIP:			99202
    		BUSINESS PHONE:		5094890500

    	MAIL ADDRESS:
    		STREET 1:		1411 EAST MISSION
    		CITY:			SPOKANE
    		STATE:			WA
    		ZIP:			99202

    	FORMER COMPANY:
    		FORMER CONFORMED NAME:	WASHINGTON WATER POWER CO
    		DATE OF NAME CHANGE:	19920703
    </SEC-HEADER>
    <DOCUMENT>
    <TYPE>8-K
    <SEQUENCE>1
    <FILENAME>investorpresentation8-k03x.htm
    <DESCRIPTION>8-K
    <TEXT>
    Document 1 - file: investorpresentation8-k03x.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-99.1
    <SEQUENCE>2
    <FILENAME>williamscapitallasvegas3.htm
    <DESCRIPTION>EXHIBIT 99.1
    <TEXT>
    Document 2 - file: williamscapitallasvegas3.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>3
    <FILENAME>williamscapitallasvegas3001.jpg
    <TEXT>
    Document 3 - file: williamscapitallasvegas3001.jpg

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    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>4
    <FILENAME>williamscapitallasvegas3002.jpg
    <TEXT>
    Document 4 - file: williamscapitallasvegas3002.jpg

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    <TYPE>GRAPHIC
    <SEQUENCE>5
    <FILENAME>williamscapitallasvegas3003.jpg
    <TEXT>
    Document 5 - file: williamscapitallasvegas3003.jpg

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    <TYPE>GRAPHIC
    <SEQUENCE>6
    <FILENAME>williamscapitallasvegas3004.jpg
    <TEXT>
    Document 6 - file: williamscapitallasvegas3004.jpg

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    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>7
    <FILENAME>williamscapitallasvegas3005.jpg
    <TEXT>
    Document 7 - file: williamscapitallasvegas3005.jpg

    </DOCUMENT>
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    <TYPE>GRAPHIC
    <SEQUENCE>8
    <FILENAME>williamscapitallasvegas3006.jpg
    <TEXT>
    Document 8 - file: williamscapitallasvegas3006.jpg

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    <TYPE>GRAPHIC
    <SEQUENCE>9
    <FILENAME>williamscapitallasvegas3007.jpg
    <TEXT>
    Document 9 - file: williamscapitallasvegas3007.jpg

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    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>10
    <FILENAME>williamscapitallasvegas3008.jpg
    <TEXT>
    Document 10 - file: williamscapitallasvegas3008.jpg

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    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>11
    <FILENAME>williamscapitallasvegas3009.jpg
    <TEXT>
    Document 11 - file: williamscapitallasvegas3009.jpg

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    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>12
    <FILENAME>williamscapitallasvegas3010.jpg
    <TEXT>
    Document 12 - file: williamscapitallasvegas3010.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>13
    <FILENAME>williamscapitallasvegas3011.jpg
    <TEXT>
    Document 13 - file: williamscapitallasvegas3011.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>14
    <FILENAME>williamscapitallasvegas3012.jpg
    <TEXT>
    Document 14 - file: williamscapitallasvegas3012.jpg

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    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>15
    <FILENAME>williamscapitallasvegas3013.jpg
    <TEXT>
    Document 15 - file: williamscapitallasvegas3013.jpg

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    <SEQUENCE>16
    <FILENAME>williamscapitallasvegas3014.jpg
    <TEXT>
    Document 16 - file: williamscapitallasvegas3014.jpg

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    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>17
    <FILENAME>williamscapitallasvegas3015.jpg
    <TEXT>
    Document 17 - file: williamscapitallasvegas3015.jpg

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    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>18
    <FILENAME>williamscapitallasvegas3016.jpg
    <TEXT>
    Document 18 - file: williamscapitallasvegas3016.jpg

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    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>19
    <FILENAME>williamscapitallasvegas3017.jpg
    <TEXT>
    Document 19 - file: williamscapitallasvegas3017.jpg

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    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>20
    <FILENAME>williamscapitallasvegas3018.jpg
    <TEXT>
    Document 20 - file: williamscapitallasvegas3018.jpg

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    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>21
    <FILENAME>williamscapitallasvegas3019.jpg
    <TEXT>
    Document 21 - file: williamscapitallasvegas3019.jpg

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    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>22
    <FILENAME>williamscapitallasvegas3020.jpg
    <TEXT>
    Document 22 - file: williamscapitallasvegas3020.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>23
    <FILENAME>williamscapitallasvegas3021.jpg
    <TEXT>
    Document 23 - file: williamscapitallasvegas3021.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>24
    <FILENAME>williamscapitallasvegas3022.jpg
    <TEXT>
    Document 24 - file: williamscapitallasvegas3022.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>25
    <FILENAME>williamscapitallasvegas3023.jpg
    <TEXT>
    Document 25 - file: williamscapitallasvegas3023.jpg

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    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>26
    <FILENAME>williamscapitallasvegas3024.jpg
    <TEXT>
    Document 26 - file: williamscapitallasvegas3024.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>27
    <FILENAME>williamscapitallasvegas3025.jpg
    <TEXT>
    Document 27 - file: williamscapitallasvegas3025.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>28
    <FILENAME>williamscapitallasvegas3026.jpg
    <TEXT>
    Document 28 - file: williamscapitallasvegas3026.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>29
    <FILENAME>williamscapitallasvegas3027.jpg
    <TEXT>
    Document 29 - file: williamscapitallasvegas3027.jpg

    </DOCUMENT>
    </SEC-DOCUMENT>