Hamilton_Park-public_RFP.pdf
PDF 1 MB Posted
- Attached to
- Design-Build Services for Solar and Energy Storage Installations at Category 1 City-Owned Properties
- Solicitation number
- 2026-RFP-0189
- Issued by
- Los Angeles County, California
About this file
This is a conceptual design document and technical specifications sheet prepared by the City of Pasadena Department of Water and Power for the Hamilton Park solar and energy storage installation project. The project involves design-build services for solar canopy and carport systems, battery energy storage, electrical infrastructure upgrades, EV charging station preparation, and associated site improvements. The design includes a cantilever solar canopy overhanging the playground with support structures located within planters, a solar carport with a minimum height of 14 feet 6 inches, battery systems with a minimum capacity of 250 kilowatts for 4 hours, a buried transformer enclosure, switchgear rated for 277/480 volts 3-phase 4-wire, conduit systems for future DC fast chargers, lighting compliant with Illuminating Engineering Society standards for parking lots, and ADA-compliant parking spaces and pathways. The contractor is responsible for on-site field surveys, design optimization to maximize solar and battery capacity while maintaining code compliance, procurement and installation of communications cabinets and telecom infrastructure, parking lot striping, and coordination with Pasadena Water and Power's Electric Service Planning Group for final service design approval.
The contractor bears full responsibility for repairing or replacing any existing property or utilities damaged during construction and must ensure all work meets or exceeds pre-construction conditions. The design is conceptual and may deviate from the provided plot plan and single-line diagram provided the final design meets specified requirements, including ensuring solar and batteries do not offset the building meter and are capable of automatic microgrid operation with backup power capability during outages. The contractor must design switchgear and infrastructure to accommodate future installation of four 75-kilowatt DC fast chargers without additional civil work. All electrical installations must comply with the City of Pasadena Water and Power Department's Electrical Service Requirements (Regulation 21), with Pasadena Water and Power providing transformers, high-voltage cables, and service entrance conductors while the contractor procures all other service equipment including the buried transformer enclosure, primary and secondary conduits, switchgear, electrical panels, and protective fencing and retaining walls.
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Text version
(N) FENCED IN
ELECTRICAL EQUIPMENT (SWITCHGEAR,
COMMUNICATIONS CABINET, ETC)
(N) RETAINING WALL
(N) CANTILEVER SOLAR CANOPY
OVERHANGING
OVER PLAYGROUND. SUPPORT
STRUCTURE MUST BE LOCATED
WITHIN PLANTER
(N) SOLAR
CARPORT
(N) BURIED
TRANSFORMER
ENCLOSURE
LOCATION OF 4 FUTURE
DC FAST CHARGERS
(E) POLE
(N) ADD CONDUIT
FUTURE COMPLIANT EV ADA
SPACES AND PATH OF TRAVEL
(N) 3'X5' PULL BOX
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SEAL:
CONCEPTUAL
DESIGN
PLOT PLAN
SCALE: NONE
HAMILTON PARK
CONCEPTUAL SINGLE LINE DIAGRAM
SCALE: NONE
NOTES:
1. LAYOUT IS CONCEPTUAL. CONTRACTOR SHALL SUBMIT PROPOSAL TO MAXIMIZE SOLAR AND
BATTERIES AT THE SITE WHILE MAINTAINING COMPLIANCE WITH ALL APPLICABLE FEDERAL,
STATE, AND LOCAL CODES.
2. PROPOSED DESIGN MAY DEVIATE FROM CONCEPTUAL DESIGN PROVIDED IT MEETS THE
FOLLOWING REQUIREMENTS:
2.1. SOLAR AND BATTERIES SHALL NOT OFFSET BUILDING METER
2.2. SOLAR AND BATTERIES SHALL BE CAPABLE OF AUTOMATIC MICROGRID OPERATION
AND PROVIDE BACKUP POWER TO THE BUILDING IN CASES OF A POWER OUTAGE
3. THE CONTRACTOR IS FULLY RESPONSIBLE FOR REPAIRING OR REPLACING ANY EXISTING
PROPERTY OR UTILITIES DAMAGED DURING CONSTRUCTION. ALL REPAIRS SHALL BE
EXECUTED TO A CONDITION EQUAL OR BETTER THAN THE PRE-CONSTRUCTION CONDITION
4. CONTRACTOR SHALL PERFORM ON-SITE FIELD SURVEY TO VERIFY ALL EXISTING CONDITIONS
AND DIMENSIONS PRIOR TO PROCEEDING WITH DESIGN
5. SOLAR CANOPIES
5.1. MINIMUM HEIGHT OF CARPORT CANOPY SHALL BE 14'-6"
5.2. THERE SHALL BE 4-1" CONDUIT FROM THE SWITCHGEAR TO EACH SOLAR CANOPY
FOR CAMERAS AND 2-1" CONDUITS FROM THE SWITCHGEAR TO THE CANTILEVER
OVERHANG (TOTAL OF 10) - EXACT CAMERA LOCATIONS TO BE DETERMINED DURING
DESIGN PHASE
5.3. CONTRACTOR TO PROVIDE LIGHTING WHICH COMPLIES WITH THE ILLUMINATING
ENGINEERING SOCIETY (IES) - CHAPTER 17 PARKING LOTS AND PARKING GARAGES
5.4. VERTICAL SUPPORT STRUCTURES SHALL BE PROTECTED FROM VEHICULAR TRAFFIC
5.5. SOLAR CANOPY AND EQUIPMENT (UNLESS MARKED IN THE CONCEPTUAL PLOT PLAN)
SHALL NOT CAUSE ANY PARKING SPACES TO BE LOST
5.6. 2-1" SPARE CONDUIT SHALL BE RAN TO EACH VERTICAL SUPPORT FROM
SWITCHGEAR
6. BATTERY
6.1. DIMENSIONS TO BE PROVIDED BY CONTRACTOR AND SITING TO BE DETERMINED AT A
FUTURE POINT
6.2. PREFERABLE TO HAVE BATTERIES MOUNTED ON SOLAR STRUCTURE
6.3. OTHERWISE PROPOSAL SHALL SPECIFY A BATTERY SYSTEM AT A MINIMUM OF 250KW,
4 HR
6.4. BATTERIES SHALL BE PROTECTED WITH A CMU BLOCK WALL, UNLESS MOUNTED ON
THE SOLAR STRUCTURE
7. CONTRACTOR TO PROCURE AND INSTALL COMMUNICATIONS CABINET, PAD, CONDUITS, AND
POWER FOR TELECOM
8. PARKING LOT
8.1. CONTRACTOR SHALL ENSURE PARKING SPACES AND PATH OF TRAVEL ARE
COMPLIANT WITH ADA REQUIREMENTS
8.2. CONTRACTOR SHALL ENSURE FUTURE EV CHARGING ADA SPACES AND PATH OF
TRAVEL ARE COMPLIANT WITH ADA REQUIREMENTS
8.3. CONTRACTOR IS RESPONSIBLE FOR PARKING STRIPING
9. EV CHARGERS
9.1. SWITCHGEAR SHALL BE DESIGNED FOR FUTURE (4) 75KW DC FAST CHARGERS
9.2. CONTRACTOR TO DESIGN AND INSTALL SWITCHGEAR SECTION, CONDUITS,
PULLBOXES, AND CONCRETE PADS TO ALLOW FOR FUTURE EV CHARGER
INSTALLATION WITHOUT ANY ADDITIONAL CIVIL WORK
10.ELECTRIC SERVICE NOTES
10.2. ALL NEW ELECTRICAL SERVICE INSTALLATIONS SHALL COMPLY WITH THE CITY OF
PASADENA WATER AND POWER DEPARTMENT'S ELECTRICAL SERVICE
REQUIREMENTS (REGULATION 21). ONCE AWARDED, THE CONTRACTOR SHALL
SUBMIT PRELIMINARY SERVICE EQUIPMENT INFORMATION TO PWP FOR ELECTRICAL
SERVICE DESIGN. ELECTRICAL SERVICE INFORMATION ON THIS PAGE IS CONCEPTUAL
ONLY AND MAY CHANGE DEPENDENT ON THE CONTRACTOR EQUIPMENT AND SIZING.
10.2.1. EQUIPMENT LOCATIONS AND DESIGN ARE CONCEPTUAL. CONTRACTOR
SHALL BE RESPONSIBLE FOR COORDINATING WITH PWP'S ELECTRIC SERVICE
PLANNING GROUP TO OBTAIN AN APPROVED SERVICE DESIGN
10.2.2. CONTRACTOR IS RESPONSIBLE FOR FOLLOWING ALL REQUIREMENTS STATED
ON THE PWP SERVICE DESIGN
10.3. CONTRACTOR IS RESPONSIBLE FOR THE PROCUREMENT AND INSTALLATION OF THE
FOLLOWING SERVICE EQUIPMENT
10.3.1. BURIED TRANSFORMER ENCLOSURE - 4'6"X8'6" JENSEN PRECAST
K4686-TE78-20 OR EQUIVALENT
10.3.2. PRIMARY CONDUITS ON PRIVATE PROPERTY
10.3.3. SECONDARY CONDUITS ON PRIVATE PROPERTY
10.3.4. SWITCHGEAR AND ELECTRICAL PANELS
10.3.5. FENCE AROUND ELECTRICAL EQUIPMENT
10.3.6. RETAINING WALL AROUND EQUIPMENT
10.4. PWP SHALL PROVIDE THE FOLLOWING:
10.4.1. TRANSFORMERS LOCATED INSIDE THE UNDERGROUND VAULT
10.4.2. HIGH VOLTAGE CABLES FROM PWP SYSTEM TO TRANSFORMER
10.4.3. SERVICE ENTRANCE CONDUCTORS FROM THE TRANSFORMER TO
SWITCHGEAR
CONCEPTUAL
DESIGN NOT FOR
CONSTRUCTION
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TO PWP
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(N) BURIED TRANSFORMER BURIED TRANSFORMER ENCLOSURE
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(N) TO SOLAR AND TO SOLAR AND BATTERIES
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(N) FUTURE DC FAST FUTURE DC FAST CHARGERS
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(N) PULLBOXPULLBOX
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AUX POWER (COMM., LIGHTING, ETC)LIGHTING, ETC)
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(N) SWITCHBOARD 277/480V 3PH 4W
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AS BUILT
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MARK
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DATE
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DESCRIPTION
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BY
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ADDRESS:
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APPROVED
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