20130808PAC 1 to Monsanto.pdf

ROCKY MOUNTAIN
HSIYE*",
.,. !.: i_ . :
?iil iili[ -- Pil l:: 26
201 South Main, Suite 2300
Salt Lake City, Utah 841 I I
I--, i I: '
August8,2013 : 'l:
Katie Iverson
19540 N. Wessex Dr.
Surprise, AZ 85387
kiverson@consultbai. com
RE: ID PAC-E-13-05
Monsanto Data Request (l)
Please find enclosed Rocky Mountain Power's response to Monsanto Data Request 1.
If you have any questions, please feel free to call me at [phone].
Sincerely,
yfulbr*Afin-,1
J. Ted Weston
Manager, Regulation
Enclosures
C.c. : Benjamin J. Otto/ICL [e-mail] (C)
Jean Jewell/IPUC i ean j ewell@puc. idaho. gov (C)
Ken Miller/S nake River Alliance kmi ller@ snakeriveral liance. ore
Randall Budge/lvlonsanto [e-mail]
PAC-E- 1 3 -O5/Rocky Mountain Power
August 8,2013
Monsanto Data Request 1
Monsanto Data Request I
In the 2011 IRP, Table 5.2 included 281 MW of Intemrptible as an Existing
Resource. This was explained on page 98 as being three agreements which ". ..
provide 281 MW of load intemrption capability at time of system peak."
In the 2013 IRP, Table 5.2 includes 141 MW of Intemrptible as an Existing
Resource. However, page 95 states the three agreements "... provide 324 MW of
load intemrption capability at time of system peak."
Our question is, what accounts for the difference between Table 5.2 in 201 I (281
MW) and Table 5.2 in20l3 (l4l MW)? And furthermore, why does page 95 say
that Intemrptible accounts for 324 MW, when only 141 MW was assumed in
Table 5.2?
Response to Monsanto Data Request I
The differences between what was in the 2011 lntegrated Resource Plan (IRP)
and what is in the 2013 IRP are due to changes in existing contracts and
assumptions made regarding contracted amounts for future contracts. The same
interruptible contracts are included in both the 2011 IRP and the 2013 IRP,
however, the classification is different. 183 megawatts (M\\D is included in the
Purchase category in the 2013 IRP for modeling purposes because of the limit on
the number of hours that load may be curtailed, which was converted into a limit
on amount of energy that could be "purchased"/curtailed.