20190625_yy1.pdf

COLSTRIP ADJUSTABLE RATE CALCULATION Updated
For Period 7/1/19-6/30/20
Colstrip Fuel Cost from Avista FERC Form 1 for CY 2018
line 12 Net Generation (kwh)1,389,037,000
line 20 Fuel $19,679,460
Fuel cost per kwh $0.014168
Fuel Cost per MWh $14.1677
Variable O&M, Gen. Tax, 5% line loss per MWh $2.0000
Total Colstrip Adjustable Rate $16.1677
Reference GNR-E-99-1 O.N. 28708 4/17/2001
Colstrip_19-20 ATTACHMENT 1
Average Gas Prices at Sumas, Washington from Inside FERC publication
($/MMBtu)
Calculating the 2018-2019 Avoided Cost Adjustable Rate
2017 2018
Jan $4.85 $2.90
Feb $3.17 $2.53
Mar $2.20 $1.96
Apr $2.34 $1.75
May $2.42 $1.69
Jun $2.70 $1.48
July $2.29 $1.75
Aug $2.48 $2.24
Sep $2.56 $2.04
Oct $2.35 $2.25
Nov $2.65 $13.32
Dec $3.15 $17.69
Average $2.763 $4.300
Actual Annual Adjustment:
$3.440 – ($2.763 – $4.300) = $4.977
Note:
$6.94/MMBtu = 2007-08 Approved Rate
$7.18/MMBtu = 2008-09 Approved Rate
$9.00/MMBtu = 2009-10 Approved Rate
$4.62/MMBtu = 2010-11 Approved Rate
$4.99/MMBtu = 2011-12 Approved Rate
$4.60/MMBtu = 2012-13 Approved Rate
$3.45/MMBtu = 2013-14 Approved Rate
$4.35/MMBtu = 2014-15 Approved Rate
$5.10/MMBtu = 2015-16 Approved Rate
$3.092/MMBtu = 2016-17 Approved Rate
$2.850/MMBtu = 2017-18 Approved Rate
$3.440/MMBtu = 2018-19 Approved Rate
ATTACHMENT 2
PacifiCorp Total Variable Energy Rate for 2019-2020
Naughton Huntington Hunter Totals
Fuel Cost (2018 FERC FORM 1) Page 402 Line 20 ($)115,283,027 125,760,156 137,576,088 378,619,271
Generation (2018 FERC FORM 1) Page 402 Line 12 (MWH)4,740,078 5,087,824 7,121,380 16,949,282
Average Fuel Cost ($/MWH)22.34
Variable O&M ($/MWH)1.51
Total Variable Energy Rate ($/MWH)23.85
ATTACHMENT 3