    <SEC-DOCUMENT>0000950170-24-034254-index.html : 20240320
    <SEC-HEADER>0000950170-24-034254.hdr.sgml : 20240320
    <ACCEPTANCE-DATETIME>20240320170012
    ACCESSION NUMBER:		0000950170-24-034254
    CONFORMED SUBMISSION TYPE:	ARS
    PUBLIC DOCUMENT COUNT:		1
    CONFORMED PERIOD OF REPORT:	20231231
    FILED AS OF DATE:		20240320
    DATE AS OF CHANGE:		20240320
    EFFECTIVENESS DATE:		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:		ARS
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	001-03701
    		FILM NUMBER:		24768450

    	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>ARS
    <SEQUENCE>1
    <FILENAME>2023_annual_report_filin.pdf
    <DESCRIPTION>ARS
    <TEXT>
    Document 1 - file: 2023_annual_report_filin.pdf

    </DOCUMENT>
    </SEC-DOCUMENT>