Rocky Mountain Power Five Year Study Findings and Kick Off Meeting December 2013.

Rocky Mountain Power Five Year Study Findings

and Kick Off MeetingDecember 2013

© 2

000

PA

CIF

ICO

RP

| P

AG

E 2

OGDEN UTAH AREA STUDY

DECEMBER 2013

Bhavana Katyal/Scott Murdock

© 2

000

PA

CIF

ICO

RP

| P

AG

E 3

Ogden Area Study

– The study area covers Davis, Morgan and Weber counties in northern Utah.

© 2

000

PA

CIF

ICO

RP

| P

AG

E 4

Ogden Area Study

– Major communities served Ogden and Layton. – There are about 45 Pacificorp substations and 32 customer

owned substations. – Transmission voltages include 230 kV, 138 kV, 46 kV

© 2

000

PA

CIF

ICO

RP

| P

AG

E 5

Generation Within the Study Area Two hydroelectric generators feed into the Pioneer

46 kV bus Two hydroelectric generators feed into the

Gateway 46 kV bus One hydroelectric generator feeds into the Weber

46 kV bus One hydroelectric generator feeds into the Pine

View 46 kV bus.

Ogden Area Study

© 2

000

PA

CIF

ICO

RP

| P

AG

E 6

Ogden Area StudyMain Sources

There are five 345 kV lines in the study area:• Two Populus -Ben Lomond 345 kV Line• Two Terminal-Ben Lomond 345 kV Line• One Terminal-Syracuse-Ben Lomond 345 kV Line

There are two 230 kV lines in the study area:• One Birch Creek-Ben Lomond 230 kV Line• One Naughton-Ben Lomond 230 kV Line

There are three 138 kV lines in the study area:• One Wheelon-Brigham City-Ben Lomond 138 kV

Line• One Wheelon-Ben Lomond 138 kV Line• One Wheelon-Honeyville-Ben Lomond 138 kV Line

There is one 46 kV source in the study area:•The Honeyville-Pleasant View 46 kV Line

© 2

000

PA

CIF

ICO

RP

| P

AG

E 7

Ogden Area Study

– Base System Loads (Co-incidental) Summer 2012: 862 MW Winter 2011-12: 571 MW

– Growth Summer: 2.7% Winter: 3.2%

– Projected System Loads (Co-incidental including block loads) Summer 2017: 995 MW Winter 2016-17: 679 MW

© 2

000

PA

CIF

ICO

RP

| P

AG

E 8

Ogden Area Distribution Capacity & Losses

– Area Distribution Capacity Summer: 1088.56 MVA Winter: 1312.3 MVA

– Substation Utilization Factor Summer 2017: 90% Winter 2016-17: 57%

– Transmission losses ~ 2% of area load in Summer 2012.

© 2

000

PA

CIF

ICO

RP

| P

AG

E 9

Recommended Improvements:

Ogden Area Study

© 2

000

PA

CIF

ICO

RP

| P

AG

E 1

0

Ogden Proposed Project

– West Point Substation – a new 40 MVA transformer and 138 kV line. In service by Nov 1, 2014. Estimated cost: $14,000,000. This project addresses capacity issues on Xfmr#1 at Clearfield South and Clinton.

– Midland - Install a new 30 MVA 138-12.5 kV Xfmr w/LTC. Earlier scheduled to be in service by Nov 2017. Estimated cost: $3,000,000. Can be deferred till 2023 with a distribution load transfer between West Roy and Clinton after West Point substation is in service with further distribution upgrades.

© 2

000

PA

CIF

ICO

RP

| P

AG

E 1

1

Operate CB 49 at the Brigham Switch Rack in a normally open position.

– Eliminates low voltage conditions and thermal overload of lines under N-1 conditions.

– In service by May 1, 2013.

Estimated cost: $3,000

Ogden N-1 System Improvements

© 2

000

PA

CIF

ICO

RP

| P

AG

E 1

2

Ogden N-1 System Improvements

Transfer Fruit Heights to Parrish and reverse automatic throwover scheme:

– Eliminates overload of Riverdale Xfmrs during N-1 conditions.

– In service by May 1, 2013.

Estimated cost: $3,000

Rocky Mountain Power Five Year Study Findings and Kick Off Meeting December 2013.

Documents

Transcript of Rocky Mountain Power Five Year Study Findings and Kick Off Meeting December 2013.