<SEC-DOCUMENT>0000104918-17-000113-index.html : 20170914
<SEC-HEADER>0000104918-17-000113.hdr.sgml : 20170914
<ACCEPTANCE-DATETIME>20170914161701
ACCESSION NUMBER:		0000104918-17-000113
CONFORMED SUBMISSION TYPE:	8-K
PUBLIC DOCUMENT COUNT:		3
CONFORMED PERIOD OF REPORT:	20170914
ITEM INFORMATION:		Other Events
ITEM INFORMATION:		Financial Statements and Exhibits
FILED AS OF DATE:		20170914
DATE AS OF CHANGE:		20170914

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:		171085843

	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>hydrooneregulatoryfilings8.htm
<DESCRIPTION>8-K
<TEXT>
Document 1 - file: hydrooneregulatoryfilings8.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.1
<SEQUENCE>2
<FILENAME>ex991hydrooneavistaregulat.htm
<DESCRIPTION>PRESS RELEASE
<TEXT>
Document 2 - file: ex991hydrooneavistaregulat.htm

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

</DOCUMENT>
</SEC-DOCUMENT>