200405101st Response of Avista to Potlatch.pdf

Avista Corp.
1411 East Mission PO Box 3727
Spokane, Washington 99220-3727
Telephone [phone]
Toll Free 800-727-9170
(1)
2nn~ MAY t m PHI2: .
!U;\iiO PUBLIC
UTILITIES CO~1MISSION
HECEIVED
FILED
~~'
'iI'STA.
Corp.
May 6, 2004
Conley E. Ward
GIVENS PURSLEY LLP
601 W. Bannock Street
PO Box 2720
Boise, ill 83701-2720
Re:First Production Request of Potlatch Corporation
in Case Nos. A VU-04-01 and A VU-04-
Mr. Ward
I have attached one copy of Avista s response to Potlatch Data Request No. (s) 3 , 3(C),
, 14, and 15.
If you have any questions, please call me at [phone] or Don Falkner at (509) 495-
4326.
Mike Fink
Rate Analyst
Enclosures
S. VVoodbury (IPlJC)
D. Peseau
AVISTA CORPORATION
RESPONSE TO REQUEST FOR INFORMATION
JURISDICTION:
CASE NO:
REQUESTER:
TYPE:
REQUEST NO.
Idaho
A VU-04-01 / A VU-04-
Potlatch
Data Request
DATE PREP ARED:
WITNESS:
RESPONDER:
DEPARTMENT:
TELEPHONE:
5/5/2004
Lafferty
Lafferty
Energy Resources
[phone]
REQUEST:
Please provide copies of A vista Power s agreement to purchase Coyote Springs 2 and/or any
related land, permits, or licenses, and facilities or equipment.
RESPONSE:
The requested materials are being provided with Avista s data response to Potlatch, number
3(C). The materials provided contain TRADE SECRET or CONFIDENTIAL information and
are separately filed under IDAPA 31.01.01, Rule 067, and Section 9-340D, Idaho Code.
VISTA CORPORATION
RESPONSE TO REQUEST FOR INFORMATION
JURISDICTION:
CASE NO:
REQUESTER:
TYPE:
REQUEST NO.
Idaho
A VU-04-01 / A VU-04-
Potlatch
Data Request
DATE PREPARED:
WITNESS:
RESPONDER:
DEPARTMENT:
TELEPHONE:
5/3/2004
Lafferty
Lafferty
Energy Resources
[phone]
REQUEST:
Please explain why Coyote Springs 2 is currently out of service, and when it is expected to return
to service.
RESPONSE:
On January 15 2004, Coyote Springs 2 experienced a relay alarm indicating high gassing in the
500kV generator step-up unit (GSU) transformer. At the time Coyote Springs 2 had been off-
line because market conditions were such that the plant was not economic to operate. Prior to
January 15 2004, Avista Corporation had sold the natural gas associated with Coyote Springs 2
through July 2004 (except for a small amount of natural gas related to fuel-in-kind for gas
transportation) because market conditions during that period favored selling natural gas and
purchasing needed electric power.
The transformer was de-energized and isolated from the transmission grid. A subsequent
physical inspection by representatives of the manufacturer indicated that some corona discharge
had occurred around one of the 500 kV entrance leads. The manufacturer determined that a field
repair was not possible and that the unit would need to be returned to the factory in Turkey.
The GSU transformer is currently at the Alstom factory in Turkey and is undergoing repair.
the factory, when the transformer was disassembled, the other two high voltage windings were
also inspected and no damage was found to those leads. After repair and testing, the transformer
will be shipped and is expected to arrive on site near the end of July. The estimated on-line date
for the project is mid-August.
AVISTA CORPORATION
RESPONSE TO REQUEST FOR INFORMATION
JURISDICTION:
CASE NO:
REQUESTER:
TYPE:
REQUEST NO.
Idaho
A VU-O4-01 / A VU-O4-
Potlatch
Data Request
DATE PREPARED:
WITNESS:
RESPONDER:
DEPARTMENT:
TELEPHONE:
5/3/2004
Lafferty
Lafferty
Energy Resources
[phone]
REQUEST:
Please provide a list of the number of hours for each day that Coyote Springs was out of service
since the plant was deemed available for commercial operation.
RESPONSE:
The attached two spreadsheets labeled "Coyote Springs 2 - 2003 Hours of Availability" and
Coyote Springs 2 - 2004 Hours of Availability" list the hours that Coyote Springs 2 was out
service beginning at the date of commercial operation on July 1 2003.
As explained in more detail in Potlatch Date Request Response No. 13 , prior to the Coyote
Springs 2 GSU transformer failure on January 15, 2004, Avista Corporation had sold the natural
gas associated with Coyote Springs 2 through July 2004 (except for a small amount of natural
gas related to fuel-in-kind for gas transportation) because market conditions during that period
favored selling natural gas and purchasing needed electric power.
Coyote Springs 2
2003 Hours of Availability
Hours
Hours Out Of
Month Day Available Service
E... ._
:=~ !~=:-j:.~~~~~j :~::=::~
Jui\ 1! 17.601 6.401i---
.,
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Potlatch DR-014 Attach-2003 CS2 Avail Hrs.xls Page 1
Coyote Springs 2
2003 Hours of Availability
L..
----y----"
mmm.mi"'"
..."...."'.......... ......
~()v; .
"""-"
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..--................
Potiatch DR-014 Attach'2003 CS2 Avail Hrs.xls Page 2
Coyote Springs 2
2003 Hours of Availability
1...-.-....-.-.--.
.-.
t=--r---
,........ .
...1.....
Potlatch DR,014 Attach-2003 CS2 Avail Hrs.xls Page 3
Potiatch DR'014 Attach'2004 CS2 Avail Hrs.xls
Coyote Springs 2
2004 Hours of Availability
Month Hours
Available
Hours
Out Of Service
Day
Page 1
Potiatch DR'014 Attach-2004 CS2 Avail Hrs.xls
Coyote Springs 2
2004 Hours of Availability
Month Hours
Available
Hours
Out Of ServiceDay
Page 2
AVISTA CORPORATION
RESPONSE TO REQUEST FOR INFORMATION
JURISDICTION:
CASE NO:
REQUESTER:
TYPE:
REQUEST NO.
Idaho
A VU-O4-01 / A VU-O4-
Potlatch
Data Request
DATE PREPARED:
WITNESS:
RESPONDER:
DEPARTMENT:
TELEPHONE:
5/3/2004
Lafferty
Lafferty
Energy Resources
[phone]
REQUEST:
Please provide a schedule of the hourly output of Coyote Springs 2 in mwh for each day both
before and after the plant was deemed available for commercial operation.
RESPONSE:
The attached spreadsheets labeled "Coyote Springs 2 - 2003-04 Generation Output" lists the
energy output, expressed in MWh, produced by the total Coyote Springs 2 project on a daily
basis.
As explained in more detail in Potlatch Date Request Response No. 13, prior to the Coyote
Springs 2 GSU transformer failure on January 15, 2004, Avista Corporation had sold the natural
gas associated with Coyote Springs 2 through July 2004 (except for a small amount of natural
gas related to fuel-in-kind for gas transportation) because market conditions during that period
favored selling natural gas and purchasing needed electric power.
Potlatch DR-015 Attach-2003-04 MWhs.xls
Coyote Springs 2
2003-2004 Generation Output
Total Plant
Generation
OutputDate (MWh)OS/27/03 i 0 :
.Q~Z?~/ 0 :r=-..J
=--=- ----
OS/29/03 i 0 1
05/30/03r- 05/31/03 0"1
~--
6~!b17Q~:=L==
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06/02/03 i 0 _
L~.6/03/03 I 0 I
06/04/03 0 '
o6To5/03 1~O39
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- 06/06/03 f3n
r----OSi07/03 rDs/08/03 i 0 !oo-
~Z9~~03- ,_... r'"
::=
06/10/03 885 :
06/11/03 _L-~~6 i
6/12/03 225 i
06/13/03 774 I
---.--'------..--'
06/14/03 1 ,207 i~6/15/0 025 !
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; 06/17/03 ! 2 283 iOSi18i63j-----
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06/20/03
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06/23/03 1 ,895
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l_..__~25/~L__~, 705
1 06/26/03 64606/27/03 1 411
:-06/28/03 1fO6129To~
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07/04/732 !~703 5-;6881i.om 07/06/03
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Page 1
Potiatch DR-015 Attach-2003-04 MWhs.xls
Coyote Springs 2
2003-2004 Generation Output
Total Plant
Generation
OutputDate (MWh)07/26/03 5 594 !
C 67/2?!63-
.__
~~26l
07/28/03 \ 5 681 i
I 07/29/6~,6~9J
07/30/03 I 5 653 !
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---
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L 08l94103-..J__2&2'
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08/09/03 5 814 .08/10/0~~ 5,8611
08/11/03 I 5,~~J
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08/13/03 i 843 i08714/00 5,813 !
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I 08/21/03 48 i
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r- 08/29/03
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1 09/10/03 .....L.......:09/11/03 i 5
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09/15/03 i 5 891 ;
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I 09/19/03 ! 5 976 I
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Page 2
Potlatch DR-O15 Attach,2003-04 MWhs.xls
Coyote Springs 2
2003-2004 Generation Output
j--_.,....
..m.m~.....,._.,..
. """,'..
oo......,m....,.
Page 3
Potlatch DR-015 Attach-2003-04 MWhs.xls
Coyote Springs 2
2003-2004 Generation Output
Total Plant
Generation
Output
Dat (MWh)
11/23/03 0 ;
C ...-- iI7.?P63~==t====6ji 11/25/03
111726/031 0 ir--11/27/0
='-
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2724/03i---r12/25/63 0 ;r--12126/0
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r-f2t29/Q3I 377 i
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12/31/03 \
01/01/04
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01/04164
roflo5io4
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01/12/04 0 i
01/13/04 0 i01/1 0 1
01/15/04 0 ;
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01/16/04
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Page 4
Potlatch DR-015 Attach-2003-04 MWhs.xls
Coyote Springs 2
2003-2004 Generation Output
Total Plant
Generation
Output
,-__
-'pate (MWh)
01/22/04---'- 0 !
01/23704-S'-------O1
:---
61/2"4/0"4-
---
r---- 01/25/04 0 i
r'" 01/26/04 0 !
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01727164--""1-"-----""---
Q.!!?8/04 J-----01/29/04
OY30/04
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0 :
01/31/04 0 I
o2l0iio.r-'--'-
-E.?J02/04 02/0~04 0 !
2.104/04"'."02.105"764 0-02/0~04 0 :02/07/04
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02/09/04 0 i
271 0/04 0 i
t =~=~Q?l 27o4=
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03/21/04
Page 5
Potiatch DR-015 Attach-2003-04 MWhs.xls
Coyote Springs 2
2003-2004 Generation Output
Total Plant
Generation
OutputDate (MWh)03/22/04 0 i6"3J23To4-'- 0 ,
----03/24/04' --03/25/04 0 .
~,--~~j~~g~'---
i"'---'----'---' ~ ,t-'-"'------r--'-
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: 04/01/0rt-- 0 I04/02/04 0 ,04/03/04 0 :
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4/13/04 04/14/04 I 15/WT-0~1~O~
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04/18/04
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/24/04 --r- 0 !r--04/25/04 -1- 04/26/04 I 0 .
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04/29/04
O~3W04
05/01/04 I w 0
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. 05/03/04 I ""0'1
Page 6
ALL ATTACHMENTS
WERE FILED
CO NFID E NTIAL