20041213_1029.pdf

DECISION MEMORANDUM
TO:COMMISSIONER KJELLANDER
CO MMISSI 0 NER SMITH
CO MMISSI 0 NER HANSEN
COMMISSION SECRETARY
LEGAL
WORKING FILE
FROM:DAVE SCHUNKE
DATE:DECEMBER 10, 2004
RE:PACIFICORP'S APPLICATION TO REVISE SCHEDULE 72, IRRIGATION
LOAD CONTROL CREDIT RIDER
CASE NO. P AC-04-
On November 12 2004, PacifiCorp (dba Utah Power & Light Company) submitted
proposed revisions to Tariff Schedule 72, Irrigation Load Control Service Credit rider. The
Company respectfully requests an effective date of December 15 2004.
Third Revision of Sheet No. 72.Schedule 72 Irrigation Load Control Credit Rider
Second Revision of Sheet No. 72.Schedule 72 Attachment A - 2005 Load Control Service
Credit
This submission is to establish the Load Control Service Credit amounts for the 2005
irrigation season. The proposed 2005 credit amounts have been calculated using the same
methodology used to determine the 2004 Load Control Service Credit amounts, with the exception
that the use of an uncertainty factor has been discontinued. After two years of operation, the
Company is sufficiently confident in the program results that the use of the uncertainty factor to
address operational variables is not considered necessary for the 2005 irrigation season. The
proposed credits are significantly increased from the 2004 season and are shown on the attached
tariff sheet. The proposed credit for June 2005 is 56% higher than June of 2004. The proposed
credits for July and August are 28% and 23% higher, respectively. The credit proposed for
September 2005 is 29% lower than it was in 2004. The Company understands that some
customers have concerns regarding the method of calculating the credit amount. PacifiCorp
DECISION MEMORANDUM - 1 -DECEMBER 10 2004
commits to continue discussions with customers regarding the method of calculating the credit on
an ongoing basis.
The proposed tariff changes also reflect the Company s proposal to offer two additional
curtailment schedule options for the 2005 irrigation season. In addition to the continuing 6 hour
curtailment / 2 days per week, the Company hereby proposes to allow two additional curtailment
schedule options as follows:
3 hour curtailment per day /2 days per week (M/W or Tu/Th) between the hours of
2:00 pm and 8:00 pm
3 hour curtailment per day / 4 days per week (M- Th) between the hours of 2:00 pm
and 8:00 pm
The additional options are being offered based on requests from irrigators for additional
program participation options. Under the proposal customers will select one curtailment option for
each participating site. It is expected that these options will increase the overall program
participation level.
Included with this filing, the Company submitted the 2004 report for the Irrigation Load
Control Program. Program participation in 2004 was up considerably over the 2003 season. 340
customers with 734 sites participated in 2004, as compared to 207 customers with 401 sites in
2003. The total credit paid to participating irrigators increased from $278 000 in 2003 to $410 000
in 2004. The program achieved about 20 Mw of avoided capacity during the peak period in 2003
and about 30 Mw in 2004.
STAFF RECOMMENDATION
Staff is pleased with the results of this program and recommends that the Commission
approve the Company proposed changes in this tariff advice.
COMMISSION DECISION
Should the tariff advice ofPacifiCorp be approved?
i:udmemos/paceO4.
DECISION MEMORANDUM - 2-DECEMBER 10, 2004
ulahRIm.,
C. No. 28
Second Revision of Sheet No. 72.
Canceling First Revision of Sheet No. 72.
UT AD POWER & LIGHT COMPANY
ELECTRIC SERVICE SCHEDULE NO. 72
ST A TE OF IDAHO
ATTACHMENT A - 2005 Load Control Service Credit
2005 LOAD CONTROL SERVICE CREDIT: The LCSC for the 2005 Irrigation Season is (June
through September 15) as follows:
6 hours per day /2 days per week Load Control Option:
Fixed Monthly Participation Credit: June - $2.62/kW month
July - $2.86/kW month
August - $2.70/kW month
September - $0.68/kW month
KWh Credit:$0.
3 hours per ~av /2 days per week Load Control Option:
Fixed Monthly Participation Credit: June - $1.26/kW month
July - $1.41/kW month
August - $1.30/kW month
September - $0.31/kW month
KWh Credit:$0.
3 hours per day / 4 days per week Load Control Option:
Fixed Monthly Participation Credit: June - $2.53/kW month
July - $2.82/kW month
August - $2.60/kW month
September - $O.62/kW month
KWh Credit:$0.
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Submitted Under Advice Letter No. 04-
ISSUED: November 12,2004 EFFECTIVE: December 15 , 2004
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