    <SEC-DOCUMENT>0001193125-24-072705-index.html : 20240320
    <SEC-HEADER>0001193125-24-072705.hdr.sgml : 20240320
    <ACCEPTANCE-DATETIME>20240320161130
    ACCESSION NUMBER:		0001193125-24-072705
    CONFORMED SUBMISSION TYPE:	DEFA14A
    PUBLIC DOCUMENT COUNT:		3
    FILED AS OF DATE:		20240320
    DATE AS OF CHANGE:		20240320

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			AVISTA CORP
    		CENTRAL INDEX KEY:			0000104918
    		STANDARD INDUSTRIAL CLASSIFICATION:	ELECTRIC & OTHER SERVICES COMBINED [4931]
    		ORGANIZATION NAME:           	01 Energy & Transportation
    		IRS NUMBER:				910462470
    		STATE OF INCORPORATION:			WA
    		FISCAL YEAR END:			1231

    	FILING VALUES:
    		FORM TYPE:		DEFA14A
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	001-03701
    		FILM NUMBER:		24767899

    	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>DEFA14A
    <SEQUENCE>1
    <FILENAME>d784271ddefa14a.htm
    <DESCRIPTION>DEFA14A
    <TEXT>
    Document 1 - file: d784271ddefa14a.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>2
    <FILENAME>g784271g02g02.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 2 - file: g784271g02g02.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>3
    <FILENAME>g784271g03g03.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 3 - file: g784271g03g03.jpg

    </DOCUMENT>
    </SEC-DOCUMENT>