HomeMy WebLinkAbout06102024 City Council Seward Electric System PresentationSeward Electric
System
City of Seward City Council Infrastructure
Project Update June 10th. 2024
1
Electrical
Infrastructure
Project
Objectives
Scope
Project Schedule
Budget- Estimated Cost
Costs to Date
Questions
2
Objectives
Address Safety Issues
•Replace inadequate
ground grids
•Replace compromised
structures
•Improved operator
situational awareness
01
Replace equipment
which is at the end of its
useful life
•Aged and in effective
transformation and
protection equipment
02
Upgrade voltage from
69kV to 115kV
•Improved emergency
response through
increased Railbelt
interoperability
•Increased capacity for
future load growth
03
3
Scope-Nash Road
and Fort Raymond
O.H Conversion
•Replace structures
•Reconductor transmission
circuit
•Reconductor distribution
under build
•Add Airbreak Switch Nash
Road and Seward Highway
4
Scope-Fort
Raymond Substation
Conversion
Upgrade ground
grid and fencing
•To meet current
National
Electrical Safety
Code (NESC)
01
Improve control
and protective
selectivity
•Replace end of life
control and
protection
•Add 115kV circuit
breaker
02
Upgrade power
transformers
03
Upgrade feeder
breakers
04
Improve
operator
situational
awareness
05
5
Scope-Lawing
Substation
Conversion
Replace ground grid and fencing
•To meet current National Electrical Safety Code (NESC)Replace
Improve control and protective selectivity
•Replace end of life control and protectionImprove
Upgrade power transformersPower
Add remotely operated load break tap switch Add
Improve operator situational awarenessImprove
6
Scope-Spring
Creek Substation
Conversion
Replace
Replace
ground grid
and fencing
•To meet
current
National
Electrical
Safety Code
(NESC)
Improve
Improve
control and
protective
selectivity
•Replace end
of life
control and
protection
Power
Upgrade
power
transformers
Improve
Improve
operator
situational
awareness
7
Scope-Cruise
Ship Shore Power
115 kV line from Fort
Raymond to Cruise
ship dock via AKRR
New 115 kV -12.5 kV
substation north side
of Ship Avenue AKRR
2-feeder breakers to
cruise ship dock
12MW -2 hour Battery
Energy Storage System
(BESS)
8
Project Schedule
9
Infrastructure Project -Financial
Overview Budget and Status 10
•Nash Road Phase 1 Budgeted Cost of Work Performed =$4,568,969
•Nash Road Phase 1 Actual Cost of Work Performed = $4,140,254
•Nash Road phase 1 Cost Variance $ -428,715
Description Estimate Internal Cost Total Total Expected
(Exclusive of Internal)Committed Actual Actual Committed Cost Actual Cost Completion
Nash Road Ph 1 $4,568,969 $4,985,178 $3,986,607 $153,648 $5,138,826 $4,140,254 Complete
Nash Road Ph 2 $1,286,000 $0 $228,800 $11,094 $11,094 $239,894 4th Quarter 2025
Fort Raymond $7,165,600 $6,477,675 $5,171,495 $123,621 $6,601,296 $5,295,116 2nd Quarter 2025
Lawing $2,272,000 $1,444,242 $467,441 $0 $1,444,242 $467,441 4th Quarter 26*
Spring Creek $3,960,000 $113,855 $2,777,678 $25,320 $139,175 $2,802,998 1st Quarter 27*
Shore Power $1,436,000 $0 $0 $0 $0 $0 1st Quarter 28*
Total $20,688,569 $13,020,950 $12,632,020 $313,683 $13,334,633 $12,945,703 * Funding dependent
External Cost
Questions?
11