<SEC-DOCUMENT>0001193125-17-277748.txt : 20170906
<SEC-HEADER>0001193125-17-277748.hdr.sgml : 20170906
<ACCEPTANCE-DATETIME>20170906154603
ACCESSION NUMBER:		0001193125-17-277748
CONFORMED SUBMISSION TYPE:	DEFA14A
PUBLIC DOCUMENT COUNT:		2
FILED AS OF DATE:		20170906
DATE AS OF CHANGE:		20170906
EFFECTIVENESS DATE:		20170906

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:		171071309

	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>d456254ddefa14a.htm
<DESCRIPTION>DEFA14A
<TEXT>
<HTML><HEAD>
<TITLE>DEFA14A</TITLE>
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 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>UNITED STATES </B></P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>SECURITIES AND EXCHANGE COMMISSION </B></P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>Washington, D.C. 20549 </B></P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>SCHEDULE 14A INFORMATION </B></P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 </B></P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>(Amendment No. &nbsp;&nbsp;&nbsp;&nbsp;) </B></P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; margin-left:2%; text-indent:-2%; font-size:10pt; font-family:Times New Roman">Filed by the Registrant&nbsp;&nbsp;&#9746; </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; margin-left:2%; text-indent:-2%; font-size:10pt; font-family:Times New Roman">Filed by a Party other than the Registrant&nbsp;&nbsp;&#9744;</P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; margin-left:2%; text-indent:-2%; font-size:10pt; font-family:Times New Roman">Check the appropriate box: </P> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE CELLSPACING="0" CELLPADDING="0" WIDTH="100%" BORDER="0" STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" ALIGN="center">


<TR>
<TD WIDTH="51%"></TD>
<TD VALIGN="bottom" WIDTH="1%"></TD>
<TD WIDTH="48%"></TD></TR>


<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-top:0pt; margin-bottom:0pt; margin-left:2.00em; text-indent:-2.00em; font-size:10pt; font-family:Times New Roman">&#9744;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Preliminary&nbsp;Proxy&nbsp;Statement</P>
<P STYLE="font-size:12pt; margin-top:0pt; margin-bottom:1pt">&nbsp;</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top"> <P STYLE="margin-top:0pt; margin-bottom:0pt; margin-left:2.00em; text-indent:-2.00em; font-size:10pt; font-family:Times New Roman"><B></B>&#9744;<B></B><B>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Confidential, for Use of the
Commission Only</B></P> <P STYLE="margin-top:0pt; margin-bottom:1pt; margin-left:2.00em; text-indent:-2.00em; font-size:10pt; font-family:Times New Roman"><B>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(as permitted by Rule
14a-6(e)(2))</B></P></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; margin-left:2.00em; text-indent:-2.00em; font-size:10pt; font-family:Times New Roman">&#9744;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Definitive Proxy Statement</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top"></TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="16"></TD>
<TD HEIGHT="16" COLSPAN="2"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; margin-left:2.00em; text-indent:-2.00em; font-size:10pt; font-family:Times New Roman">&#9746;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Definitive Additional Materials</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top"></TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="16"></TD>
<TD HEIGHT="16" COLSPAN="2"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; margin-left:2.00em; text-indent:-2.00em; font-size:10pt; font-family:Times New Roman">&#9744;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Soliciting Material under
&#167;240.14a-12</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top"></TD></TR>
</TABLE> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>AVISTA CORPORATION </B></P><center>
<P STYLE="line-height:6.0pt;margin-top:0pt;margin-bottom:2pt;border-bottom:1.00pt solid #000000;width:57%">&nbsp;</P></center> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">(Name of
registrant as specified in its charter)<BR><BR><BR> </P> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P><center>
<P STYLE="line-height:6.0pt;margin-top:0pt;margin-bottom:2pt;border-bottom:1.00pt solid #000000;width:57%">&nbsp;</P></center> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">(Name of
person(s) filing proxy statement, if other than the registrant) </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">Payment of Filing Fee (Check the appropriate box): </P>
<P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR style = "page-break-inside:avoid">
<TD WIDTH="4%" VALIGN="top" ALIGN="left">&#9746;</TD>
<TD ALIGN="left" VALIGN="top">No fee required. </TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR style = "page-break-inside:avoid">
<TD WIDTH="4%" VALIGN="top" ALIGN="left">&#9744;</TD>
<TD ALIGN="left" VALIGN="top">Fee computed on table below per Exchange Act Rules 14a-6(i)(1) and 0-11. </TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR style = "page-break-inside:avoid">
<TD WIDTH="4%">&nbsp;</TD>
<TD WIDTH="3%" VALIGN="top" ALIGN="left">(1)</TD>
<TD WIDTH="1%" VALIGN="top" STYLE="font-size:8pt">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top">Title of each class of securities to which the transaction applies:<BR> </TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR style = "page-break-inside:avoid">
<TD WIDTH="4%">&nbsp;</TD>
<TD WIDTH="3%" VALIGN="top" ALIGN="left">(2)</TD>
<TD WIDTH="1%" VALIGN="top" STYLE="font-size:8pt">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top">Aggregate number of securities to which the transaction applies: </TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR style = "page-break-inside:avoid">
<TD WIDTH="4%">&nbsp;</TD>
<TD WIDTH="3%" VALIGN="top" ALIGN="left">(3)</TD>
<TD WIDTH="1%" VALIGN="top" STYLE="font-size:8pt">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top">Per unit price or other underlying value of the transaction computed pursuant to Exchange Act Rule 0-11 (set forth the amount on which the filing fee is calculated and state how it was determined): </TD></TR></TABLE>
<P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR style = "page-break-inside:avoid">
<TD WIDTH="4%">&nbsp;</TD>
<TD WIDTH="3%" VALIGN="top" ALIGN="left">(4)</TD>
<TD WIDTH="1%" VALIGN="top" STYLE="font-size:8pt">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top">Proposed maximum aggregate value of the transaction: </TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR style = "page-break-inside:avoid">
<TD WIDTH="4%">&nbsp;</TD>
<TD WIDTH="3%" VALIGN="top" ALIGN="left">(5)</TD>
<TD WIDTH="1%" VALIGN="top" STYLE="font-size:8pt">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top">Total fee paid: </TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR style = "page-break-inside:avoid">
<TD WIDTH="4%" VALIGN="top" ALIGN="left">&#9744;</TD>
<TD ALIGN="left" VALIGN="top">Fee paid previously with preliminary materials. </TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR style = "page-break-inside:avoid">
<TD WIDTH="4%" VALIGN="top" ALIGN="left">&#9744;</TD>
<TD ALIGN="left" VALIGN="top">Check box if any part of the fee is offset as provided by Exchange Act Rule 0-11(a)(2) and identify the filing for which the offsetting fee was paid previously. Identify the previous filing by registration statement
number, or the Form or Schedule and the date of its filing. </TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR style = "page-break-inside:avoid">
<TD WIDTH="4%">&nbsp;</TD>
<TD WIDTH="3%" VALIGN="top" ALIGN="left">(1)</TD>
<TD WIDTH="1%" VALIGN="top" STYLE="font-size:8pt">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top">Amount Previously Paid: </TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR style = "page-break-inside:avoid">
<TD WIDTH="4%">&nbsp;</TD>
<TD WIDTH="3%" VALIGN="top" ALIGN="left">(2)</TD>
<TD WIDTH="1%" VALIGN="top" STYLE="font-size:8pt">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top">Form, Schedule or Registration Statement No.: </TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR style = "page-break-inside:avoid">
<TD WIDTH="4%">&nbsp;</TD>
<TD WIDTH="3%" VALIGN="top" ALIGN="left">(3)</TD>
<TD WIDTH="1%" VALIGN="top" STYLE="font-size:8pt">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top">Filing Party: </TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR style = "page-break-inside:avoid">
<TD WIDTH="4%">&nbsp;</TD>
<TD WIDTH="3%" VALIGN="top" ALIGN="left">(4)</TD>
<TD WIDTH="1%" VALIGN="top" STYLE="font-size:8pt">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top">Date Filed: </TD></TR></TABLE>

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 <P STYLE="margin-top:0pt;margin-bottom:0pt" ALIGN="right">


<IMG SRC="g456254img.jpg" ALT="LOGO">
 </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B>Contact: </B></P> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR style = "page-break-inside:avoid">
<TD WIDTH="8%" VALIGN="top" ALIGN="left">Media:</TD>
<TD ALIGN="left" VALIGN="top">Avista 24/7 Media Line (509)&nbsp;495-4174 </TD></TR></TABLE>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR style = "page-break-inside:avoid">
<TD WIDTH="8%" VALIGN="top" ALIGN="left">&nbsp;&nbsp;</TD>
<TD ALIGN="left" VALIGN="top">Debbie Simock (509)&nbsp;495-8031, <U>debbie.simock@avistacorp.com</U> </TD></TR></TABLE> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><I></I><B>Avista Foundation receives
$1 million pledge to support employee engagement </B><I> </I></P> <P STYLE="margin-top:6pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><I>The Scott and Liz Morris Employee Engagement Fund will be established at the Avista
Foundation. The Morrises also pledge an additional $2 million in community support and will form a private foundation to direct future charitable contributions. </I></P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B>SPOKANE, Wash. Sept. 6, 2017</B>: The Scott and Liz Morris Employee Engagement Fund is being established through a $1million pledge by the couple to the
Avista Foundation to recognize and encourage Avista employee contributions to communities in which they live and work. The pledge will be fulfilled upon the successful completion of Avista&#146;s merger with Hydro One. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">The Morrises also pledged an additional $2 million in support of community initiatives. They will create a private foundation to direct those dollars to
community organizations that are important to them and have made a meaningful difference in their lives. The $2 million pledge will also be fulfilled upon the successful completion of Avista&#146;s merger with Hydro One. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">Scott Morris, a 36-year Avista employee, serves as the company&#146;s board chairman, president and CEO. He and Liz have been involved in nearly every aspect
of community life, which has included career stops for Scott in Lewiston, Idaho, and Medford, Oregon, as well as Spokane. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">In announcing the pledge for
the endowed Avista Foundation fund, the Morrises said, &#147;This is a way for us to thank Avista employees and support them for all they do for our communities. Throughout the company&#146;s 128-year history, Avista employees have been engaged in
all aspects of community life. They have always been there, from coaching and supporting youth sports to serving in local government, volunteering with non-profits and at schools, to rallying around a community need.&#148; </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">In 2016, employees volunteered nearly 48,000 hours to their communities, Scott Morris noted. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">&#147;Liz and I are humbled to be able to support and encourage employees as they continue the legacy of working together to make our communities better for
all of us,&#148; Morris added. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">The Scott and Liz Morris Employee Engagement Fund will be the first individual endowment received by the Avista
Foundation, which was established in 2002 with the objective of making a difference in our communities in a positive and sustainable way. Since its founding, the Avista Foundation has made grants totaling more than $5 million. </P>

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 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">Scott Morris was instrumental in the formation of the Avista Foundation 15 years ago. He was also the impetus
behind a $6.5 million infusion into the Foundation in 2014, which was a portion of the proceeds from a California energy markets settlement agreement. Further, as part of the Avista-Hydro One merger, Morris negotiated an agreement under which Hydro
One will contribute $7 million to the Avista Foundation when the transaction closes, and Hydro One will make a $2 million annual contribution to the Avista Foundation thereafter. The Avista-Hydro One merger is expected to close in the second half of
2018. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">&#147;The $1 million personal contribution to our Foundation is an incredible investment by Scott and Liz in our employees and in the communities
they serve across the five states in our service area,&#148; said Patrick Lynch, president of the Avista Foundation. &#147;Their $3 million total investment is a visible and lasting extension of the generosity that Scott and Liz have long
demonstrated and will serve as a fitting legacy to their commitment to the well-being of our communities.&#148; </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">The Avista Foundation focuses its giving
in the areas of: </P> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR style = "page-break-inside:avoid">
<TD WIDTH="5%">&nbsp;</TD>
<TD WIDTH="2%" VALIGN="top" ALIGN="left">&#149;</TD>
<TD WIDTH="1%" VALIGN="top">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top"><B>education</B> &#150; K-12 education particularly in the fields of science, math and technology; and higher education including scholarships, </TD></TR></TABLE>
<P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR style = "page-break-inside:avoid">
<TD WIDTH="5%">&nbsp;</TD>
<TD WIDTH="2%" VALIGN="top" ALIGN="left">&#149;</TD>
<TD WIDTH="1%" VALIGN="top">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top"><B>vulnerable and limited income populations</B> &#150; providing assistance to those on limited incomes and support for initiatives to reduce poverty, and </TD></TR></TABLE>
<P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR style = "page-break-inside:avoid">
<TD WIDTH="5%">&nbsp;</TD>
<TD WIDTH="2%" VALIGN="top" ALIGN="left">&#149;</TD>
<TD WIDTH="1%" VALIGN="top">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top"><B>economic and cultural vitality</B> &#150; supporting projects that help communities and citizens to grow and prosper. </TD></TR></TABLE>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">Information on the Avista Foundation is available at <U>avistafoundation.com</U>. The Avista Foundation is a separate, non-profit organization established by
Avista Corp. The foundation does not receive funding from Avista Utilities or AEL&amp;P customers through rates. </P>

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 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B>Additional Information and Where to Find It </B></P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">This communication may be deemed to be solicitation material in respect of the proposed merger transaction. Avista Corporation (&#147;<U>Avista</U>&#148;)
intends to file with the U.S. Securities and Exchange Commission (the &#147;<U>SEC</U>&#148;) and mail to its shareholders a proxy statement in connection with the proposed merger transaction and this communication is not a substitute for the proxy
statement or any other document that Avista may send to its shareholders in connection with the proposed merger transaction. THE INVESTORS AND SECURITY HOLDERS OF AVISTA ARE URGED TO READ THE PROXY STATEMENT AND OTHER RELEVANT DOCUMENTS WHEN THEY
BECOME AVAILABLE, BECAUSE THEY WILL CONTAIN IMPORTANT INFORMATION about Avista, Hydro One Limited (&#147;<U>Hydro One</U>&#148;) and the proposed merger transaction. Investors and security holders will be able to obtain these materials (when they
are available) and other documents filed with the SEC free of charge at the SEC&#146;s website, <U>www.sec.gov</U>. In addition, a copy of Avista&#146;s proxy statement (when it becomes available) may be obtained free of charge upon request by
contacting Avista Corporation, Marian Durkin, Corporate Secretary, 1411 East Mission Avenue, Spokane, Washington 99202. Avista&#146;s filings with the SEC are also available on Avista&#146;s website at: http:// investor.avistacorp.com. Investors and
security holders may also read and copy any reports, statements and other information filed by Avista with the SEC, at the SEC public reference room at 100 F Street, N.E., Washington, D.C. 20549. Please call the SEC at 1-800-SEC-0330 or visit the
SEC&#146;s website for further information on its public reference room. </P> <P STYLE="margin-top:18pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B>Participants in the Solicitation of Proxies </B></P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">This communication is not a solicitation of proxies in connection with the proposed merger transaction. However, Avista, Hydro One and certain of their
respective directors, executive officers and other persons may be deemed under SEC rules to be participants in the solicitation of Avista shareholder proxies in respect of the proposed merger transaction. Information about Hydro One directors and
executive officers is available in Hydro One&#146;s management information circular, filed with Canadian securities regulators on March&nbsp;27, 2017, in connection with its 2017 annual meeting of shareholders and is available on its website at
<U>www.HydroOne.com</U> and also under its profile on SEDAR at <U>www.sedar.com</U>. Information regarding Avista&#146;s directors and executive officers is available in Avista&#146;s proxy statement filed with the SEC on March&nbsp;31, 2017 in
connection with its 2017 annual meeting of shareholders, and its Annual Report on Form 10-K for the fiscal year ended December&nbsp;31, 2016 filed with the SEC on February&nbsp;22, 2017, each of which may be obtained from the sources above under
&#147;Additional Information and Where to Find It&#148;. Other information regarding persons who may be deemed participants in the proxy solicitation and a description of their direct and indirect interests (which may be different than those of
Avista&#146;s investors and security holders), by security holdings or otherwise, will be contained in the proxy statement and other relevant materials filed or to be filed with the SEC when they become available. </P>
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