Below is an archive of Avista's Integrated Resource Plan documents. Most documents (years) are comprised of two sections: Main Document and Appendices. Questions about these Plans may be directed to Clint Kalich, Avista's Manager of Resource Planning and Power Supply Analyses.

2009 Integrated Resource Plan

•   2009 IRP Document (4.4 MB)
•   2009 IRP Appendix (12.7 MB)
•   2009 IRP Appendix Table of Contents (200 KB)

2007 Integrated Resource Plan

•   2007 IRP Document  (3.9 MB)
•   2007 IRP Appendix (8.3 MB)
•   2007 Wind Integration Study Report (1.1 MB)

2005 Integrated Resource Plan 

•   2005 IRP Document (3.7 MB)
•   2005 IRP Appendices 1 (5.5 MB)
•   2005 IRP Appendices 2 (2.9 MB)

2003 Integrated Resource Plan 

2001 Integrated Resource Plan

•   2001 IRP Document.pdf (7.2 MB)

1997 Integrated Resource Plan

•   1997 IRP Document.pdf (1.8 MB)
•   1997 IRP Appendices.pdf (7.3 MB)

1995 Integrated Resource Plan

•   1995 IRP Document.pdf (2.3 MB)
•   1995 IRP Appendices.pdf (10 MB)

1993 Integrated Resource Plan

•   1993 IRP Document.pdf (5.9 MB)
•   1993 IRP Appendices.pdf (8.4 MB)

1991 Integrated Resource Plan

•   1991 IRP Document.pdf (9.4 MB)

1989 Integrated Resource Plan

•   1989 IRP Document.pdf (5.7 MB)