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1 RiversideCA.gov
HUNTER SUBSTATION REPLACEMENT PROJECT
RFP NO. 1850 DESIGN-BUILD AGREEMENT – WITH
AUBREY SILVEY ENTERPRISE INC., WORK ORDER
NO. 2420403 IN THE AMOUNT OF $62,327,000
City Council
April 16, 2024
Public Utilities – Energy Delivery
RiversideCA.gov
2 1. Existing Hunter Substation Overview
• Services approximately 4,800 customers:
residential and business
• Located in Hunter Industrial Park and Northside
communities
2. Current State of Hunter Substation
• Built in early 1960s
• Exceeded design lifespan
• Equipment failures reported
• Non-compliant with current seismic standards
3. Capacity and space limitations of existing Substation • Unable to meet 10-year projected load
demand
• Insufficient space for additional equipment
• Infrastructure project in 2023 Local Hazard
Mitigation Plan for City of Riverside and County
of Riverside
BACKGROUND
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3 1. Staff conducted research on potential
sites for a new replacement substation
2. Identified adjacent property to Hunter
Substation as the most suitable
3. February 12, 2018, Board of Public Utilities
recommended land purchase
4. February 27, 2018, City Council
unanimously approved the purchase of
1.38 acres
BACKGROUND CONT.
RiversideCA.gov
4 5. January 14, 2019, the Board of Public Utilities approved Work Order No. 1826767 in the amount of $2,000,000 to develop the preliminary design, prepare California Environmental Quality Act (CEQA) documents
6. March 9, 2021, the City Council unanimously adopted a Mitigated Negative Declaration (MND) and Mitigation Monitoring and Reporting Program (MMRP), and approved the Hunter Substation Replacement Project
7. August 28, 2023, the Board recommend that the City Council conduct a public hearing and adopt a Resolution approving the electric utility five-year rate plan proposal for FY 2023/2024 – 2027/2028
8. September 19, 2023, City Council adopted a Resolution to set electric rates, which includes Capital Improvement Plan budgets FY 2023/2024 – 2027/2028
9. Electric Five-Year Plan's proposed projects such as the Hunter Substation Replacement, will be funded by carryovers and Substation Project Category from the 2023 5-Year Rate Plan
10. No additional capital improvement funds were identified in the 5-year Electric Rate plan BACKGROUND CONT.
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5 1. A design-build project where the selected
vendor will be responsible for the design,
procurement, construction of the new
substation and demolition of the existing
substation
2. During construction, the existing substation
will remain in service
3. After the cutover to the new substation,
the existing substation will be demolished
4. The new substation will be built as a low-
profile breaker and half substation to
improve seismic, reliability and
maintenance
DISCUSSION
RiversideCA.gov
6 5. The new substation will have an added capacity to serve future loads and improve efficiency to handle loss of
transformer scenarios
6. New substation will have additional capacity to serve load growth and new developments in the Northside Specific
Plan and surrounding areas
7. The expected design life of the new substation is 50 years DISCUSSION CONT.
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7 8. July 26, 2023, Request for Proposal No. 1850 was
posted on the City’s online bid system
9. August 24, 2023, mandatory pre-bid job walk was
conducted
10. 46 prospective bidders were in attendance from
design-build firms, equipment manufacturers, and
subcontractors
11. November 15, 2023, RFP closed with two total
responses
DISCUSSION CONT.
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8 Number of Vendors Action
1346Vendors Notified
112Vendors Who Downloaded the RFP (include
manufactures and sub-contractors)
65Questions and Answers Received
8Addenda Submitted
2Proposals Received
DISCUSSION CONT.
RFP No. 1850 Bidding Notification Summary Table
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9 Energy Services
West, LLC
Aubrey Silvey
Enterprise Inc.
Max
Score
Selection Criteria
116.25123.75150Business History and Performance
128.63118.13150Design and Management Outline, Qualification of Key Personnel
266.25212.25300Technical Proposal & Equipment Documents, Warranty Service Proposal, Engineering Design
Proposal
322.25400400Cost Scores
833.38854.131000Total Score
21Rank
DISCUSSION CONT.
Evaluation Results Table
RankProposal AmountCity LocationDesign-Build Entity
1$54,434,074.23Bremen, GAAubrey Silvey Enterprise Inc.
2$67,567,455.67Spokane
Valley, WAEnergy Services West, LLC
Engineer’s Estimate $59,000,000
RiversideCA.gov
10 • The project area is located
in Ward 1, near the
intersection of Chicago
and Columbia Avenues
• Electric Service disruptions
will be coordinated to
minimize impact on
customers
PROJECT LOCATION
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11 Work includes:
1. Installation of
new substation with state-
of-the-art power
automation and protection
technology
2. Transmission and
distribution connections to
RPU Electrical System
3. Demolition of existing
facility
SCOPE OF WORK
RiversideCA.gov
12 1. Addresses the aging infrastructure and vulnerability of the Hunter Substation
2. Increases electric system reliability and safety
3. Improves electric services and power quality to customers
4. Adds capacity to serve future loads and new business development projects, such as The Exchange
Development, Transwestern Project, Trujillo Adobe Project, Northside Agricultural Innovation Center, UCR/RUSD STEM Education Center
BENEFITS
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13 PROJECT BREAKDOWN
Percent of
TotalAmount ($)Performed By:Work Type
87.3%$54,434,075Aubrey Silvey Enterprise Inc.Design-Build Services per RFP No. 1850
0.9%$550,000Consultant Panel/Others (at later
time)Inspection Services during Construction
1.1%$700,000Consultant Panel/Others (at later
time)Drafting Services Utilizing Intelligent Software
0.5%$299,518RPU - Engineering LaborProject Management and Engineering
0.8%$500,000RPU - Crews LaborInspection, Factory Testing, Field Testing and Commissioning
0.6%$400,000RPU - Central Store MaterialsMaterial for 15 kV Distribution Conductors
8.7%$5,443,407Aubrey Silvey EnterpriseContract Contingency (10%) 100%$62,327,000Work Order Total:
NoneReimbursements
July 2024Anticipated Start Date:
40 months (January 2028)Anticipated Duration:
RiversideCA.gov
14 FISCAL IMPACT
The total project fiscal impact is $62,327,000. Budget
transfers are required from the listed below Public
Utilities’ Electrical Capital accounts to the Public Utilities’ Hunter Substation Replacement Capital Account No.
6130100-470699.
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15 FISCAL IMPACT CONT.
Budget Transfer Amount ($)To New Hunter Substation
Account
Transfer From Capital AccountProject
Category
$1,105,0006130100-4706996130000 470601 – Distribution Line ExtensionsRecurring $850,0006130100-4706996130000 470603 – Line RebuildsRecurring $527,0006130100-4706996130000 470620 – Major Transmission Line Recurring $880,0006130100-4706996130000 470633 – Major FeedersRecurring $6,900,0006130100-4706996130000 470657 – Biogas to EnergyRecurring $2,250,0006130100-4706996130000 470672 – SCADARecurring $5,850,0006130100-4706996130100 470623 – GO 165 UpgradesOverhead $9,200,0006130100-4706996130100 470644 – 4/12 kV Conversions Overhead $765,0006130100-4706996130100 470638 – Neighborhood Street Lights Overhead $3,940,0006130100-4706996130100 470603 – Line RebuildsUnderground $6,540,0006130100-4706996130100 470624 – GO 165 Upgrades Underground $12,870,0006130100-4706996130100 470635 – Cable ReplacementUnderground $340,0006130100-4706996130100 470608 – System Substation ModificationsSubstation $1,170,0006130100-4706996130100 470616 – Substation Bus and UpgradesSubstation $9,140,0006130100-4706996130100 470632 – Substation TransformerSubstation $62,327,000New Hunter Substation Account Total:
RiversideCA.gov
16 Strategic Priority 6 – Infrastructure, Mobility and Connectivity Goal 6.2 – Maintain, protect, and improve assets and infrastructure within the City’s built environment to ensure and enhance reliability, resiliency, sustainability, and facilitate connectivity.
Cross-Cutting Threads
STRATEGIC PLAN ALIGNMENT
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17 RECOMMENDATIONS
That the City Council:
1. Award a Design-Build Agreement for Request for Proposal No. 1850 for the Hunter Substation Replacement Project with Aubrey Silvey Enterprise Inc. of Bremen, Georgia, for a term of 40 months from date specified in the Notice to Proceed once issued by City, in the amount of $54,434,074.23;
2. Authorize a 10%, or $5,443,407, change order authority for the contract with Aubrey Silvey Enterprise Inc., for Request for Proposal No. 1850 Hunter Substation Replacement Project; RiversideCA.gov
18 RECOMMENDATIONS CONT.
3. Authorize a budget transfer of $12,512,000 from Public Utilities’ Electric Recurring projects, $15,815,000 from Public Utilities’ Electric Overhead projects, $23,350,000 from Public Utilities’ Electric Underground projects, and $10,650,000 from Public Utilities’ Electric Substation Account No. 6130000-470601 to Public Utilities’ Hunter Substation Replacement Account No. 6130100-470699; and
4. Authorize the City Manager, or his designee, to execute any documents necessary to effectuate the contract described herein, as well as the ability to make minor and non-substantive changes in alignment with all purchasing policies.
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