20161202Decision Memo.pdf

TO:
FROM:
DATE:
RE:
DECISION MEMORANDUM
COMMISSIONER KJELLANDER
COMMISSIONER RAPER
COMMISSIONER ANDERSON
COMMISSION SECRETARY
LEGAL
WORKING FILE
TERRI CARLOCK
DECEMBER 2, 2016
ANNUAL DETERMINATION OF THE INTEREST RATES ON
DEPOSITS COLLECTED FROM CUSTOMERS FOR THE CALENDAR
YEAR 2017. CASE NO. GNR-U-16-01.
Every year the Commission sets the interest rate to be paid on customer deposits for the
next calendar year. Rule 106 of the of the Customer Relations Rules for Gas, Electric and Water
Utilities provides: "the Commission will determine the twelve-month average interest rate for
one-year Treasury Bills for the previous November 1 through October 31, round that rate to the
nearest whole percent ... ". (IDAPA 31.21.01.106 and IDAPA 31.41.01.104). This average
interest rate is 0.58% as shown on Attachment A. Staff recommends the rate be rounded up to
the nearest whole percent and set at 1%, as is currently the 2016 rate.
The chart on Attachment B shows the interest rates since 1990 and the Order numbers
approving those rates.
COMMISSION DECISION
Should the interest rate paid on deposits collected from customers for the calendar year
2017 be set at 1%?
Terri Carlock
u/tcarloc!AnnDctlntRotcsl2·2·2016 TC
Week Ended
11/6/2015
11/13/2015
11/20/2015
11/27/2015
12/4/2015
12/11/2015
12/18/2015
12/24/2015
12/31/2015
1/8/2016
1/15/2016
1/22/2016
1/29/2016
2/5/2016
2/12/2016
2/19/2016
2/26/2016
3/4/2016
3/11/2016
3/18/2016
3/24/2016
4/1/2016
4/8/2016
4/15/2016
4/22/2016
4/29/2016
APPENDIX
ONE-VEAR TREASURY RATES
Rate% Week Ended
0.47 5/6/2016
0.50 5/13/2016
0.49 5/20/2016
0.50 5/27/2016
0.60 6/3/2016
0.68 6/10/2016
0.67 6/17/2016
0.64 6/24/2016
0.65 7/1/2016
0.64 7/8/2016
0.49 7/15/2016
0.47 7/22/2016
0.47 7/29/2016
0.55 8/5/2016
0.51 8/12/2016
0.53 8/19/2016
0.60 8/26/2016
0.67 9/2/2016
0.70 9/9/2016
0.62 9/16/2016
0.63 9/23/2016
0.62 9/30/2016
0.54 10/7/2016
0.53 10/14/2016
0.56 10/21/2016
0.56 10/28/2016
AVERAGE
Source: Federal Reserve Treasury Rates
One-Year Constant Maturities
Rate%
0.51
0.55
0.67
0.68
0.60
0.57
0.51
0.48
0.45
0.48
0.52
0.55
0.50
0.56
0.56
0.59
0.62
0.59
0.58
0.61
0.60
0.59
0.66
0.66
0.66
0.66
0.58
Attachment A
Interest Rates on Deposits
Calendar Year Interest Rate Order No.
1990 9% 22836
1991 8% 23425
1992 6% 23971
1993 4% 24578
1994 3% 25242
1995 5% 25788
1996 6% 26233
1997 6% 26681
1998 6% 27248
1999 5% 27828
2000 5% 28234
2001 6% 28575
2002 4% 28896
2003 2% 29158
2004 1% 29386
2005 2% 29653
2006 3% 29932
2007 5% 30200
2008 5% 30469
2009 2% 30692
2010 1% 30965
2011 1% 32109
2012 1% 32403
2013 1% 32684
2014 1% 32922
2015 1% 33187
2016 1% 33426
AITACHMENT B