20100504Avista Letter.pdf

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~~'I'V'STA.
Corp.
bNR ..E -(ó -o~
aho Public Utilities Commission
Sterling
ouse Mail
est 472 Washington
oise, il 83720
RE: 2010-2011 Avoided Cost Adjustable Rate
Dear Mr. Sterling:
Attached are the average gas prices as Sumas, Washington for 2009 from the Inside
FERC Publication. These numbers are for the calculation of the avoided cost adjustable
rate.
Please call me at [phone] or email me at john.lyonsßYavistacorp.com with any
questions concernng this data.
i:Y~John Lyons, Ph.D.
Power Supply Analyst
Enclosure
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Average Gas Prices at Sumas, Washington from Inside FERd~JlMlJ¡Jn AM 8: II
($/Mtu)
Calculating the 2009-2010 Avoided Cost Adjustable Rate
2008 2009
Jan $7.48 $6.89
Feb $8.57 $4.80
Mar $8.46 $3.83
Apr $8.81 $3.59
May $10.17 $2.74
Jun $10.77 $2.88
July $11.69 $2.69
Aug $7.94 $3.01
Sep $6.94 $2.46
Oct $6.23 $3.87
Nov $6.28 $5.22
Dec $6.66 $5.47
Average $8.33 $3.95
Actual Anual Adjustment:
$9.00 - ($8.33-$3.95) = $4.62
Note:
$2.00/Mtu = 1997-98 Approved Rate
$2.35/Mtu = 1998-99 Approved Rate
$2.26/Mtu = 1999-00 Approved Rate
$2.80/Mtu = 2000-01 Approved Rate
$4.82/Mtu = 2001-02 Approved Rate
$5.23/Mtu = 2002-03 Approved Rate
$3.33/MMBtu = 2003-04 Approved Rate
$5.31/Mtu = 2004-05 Approved Rate
$5.92/Mtu = 2005-06 Approved Rate
$7.80/Mtu = 2006-07 Approved Rate
$6.94/Mtu = 2007-08 Approved Rate
$7 .18/MBtu = 2008-09 Approved Rate
$9.00/Mtu = 2009-10 Approved Rate