Exhibit 21

Avista Corporation

SUBSIDIARIES OF REGISTRANT

Subsidiary	State or Country of Incorporation
Avista Capital, Inc.	Washington
Avista Advantage, Inc.	Washington
Avista Development, Inc.	Washington
Avista Energy, Inc.	Washington
Avista Energy Canada LTD	Canada
CoPac Management, Inc.	Canada
Avista Power, LLC	Washington
AVA Formation Corp.	Washington
Avista Ventures, Inc.	Washington
Pentzer Corporation	Washington
Bay Area Manufacturing, Inc.	Washington
Advanced Manufacturing and Development, Inc.	California
Avista Receivables Corporation	Washington
Avista Capital II	Delaware
AVA Capital Trust III	Delaware
Spokane Energy, LLC	Delaware