<SEC-DOCUMENT>0001193125-17-106525-index.html : 20170331
<SEC-HEADER>0001193125-17-106525.hdr.sgml : 20170331
<ACCEPTANCE-DATETIME>20170331160803
ACCESSION NUMBER:		0001193125-17-106525
CONFORMED SUBMISSION TYPE:	DEFA14A
PUBLIC DOCUMENT COUNT:		7
FILED AS OF DATE:		20170331
DATE AS OF CHANGE:		20170331
EFFECTIVENESS DATE:		20170331

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:		DEFA14A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-03701
		FILM NUMBER:		17730413

	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>d352313ddefa14a.htm
<DESCRIPTION>DEFINITIVE ADDITIONAL MATERIALS
<TEXT>
Document 1 - file: d352313ddefa14a.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>2
<FILENAME>g352313notice01a.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 2 - file: g352313notice01a.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>3
<FILENAME>g352313notice01b.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 3 - file: g352313notice01b.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>4
<FILENAME>g352313notice02a.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 4 - file: g352313notice02a.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>5
<FILENAME>g352313notice02b.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 5 - file: g352313notice02b.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>6
<FILENAME>g352313notice03.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 6 - file: g352313notice03.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>7
<FILENAME>g352313notice04.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 7 - file: g352313notice04.jpg

</DOCUMENT>
</SEC-DOCUMENT>