Solar PV and Electric Vehicle Charger Design, Installation and Operation

Agency:	Lake County
State:	California
Type of Government:	State & Local
NAICS Category:	221114 - Solar Electric Power Generation 237130 - Power and Communication Line and Related Structures Construction 238210 - Electrical Contractors and Other Wiring Installation Contractors 541330 - Engineering Services
Posted Date:	May 26, 2023
Due Date:	Jun 12, 2023
Bid Source:	Please Login to View Page
Contact information:	Please Login to View Page
Bid Documents:	Please Login to View Page

Bid Number:	Project No. 23-11
Bid Title:	Solar PV and Electric Vehicle Charger Design, Installation and Operation
Category:	County General
Status:	Open

Description:

Statement of Purpose. The primary purpose of this Request for Qualifications and Proposals (RFQ/P) is to identify qualified providers/developers of solar PV installations and EV charging stations to support the County of Lake (“Lake County” or “the County”) in developing a costeffective renewable energy project at their neighboring Courthouse/Administration and District Attorney Buildings in Lakeport, CA, with up to three (3) dual-port EV Charging Stations potentially included in the project. As proposal options (Add Alternates), the County is also interested in incorporating battery energy storage system (BESS) and an islandable Microgrid Energy Management System (MEMS). The County seeks proposals from qualified Proposers for the design and engineering, procurement of materials, permitting, installation, interconnection, and all associated documentation, maintenance, and warranties of turn-key Solar PV, EV Charging Stations, and optionally, BESS and MEMS (collectively referred to as “Systems”) to be located at 375 3rd St. in Lakeport, CA. It is anticipated that the Systems within the scope of this project will be purchased outright by the County, thus alternate financing structures are not requested in the proposal.

Additional (External) Document List

Publication Date/Time:

4/20/2023 12:00 AM

Publication Information:

https://optony.app.box.com/s/ziulrlnkvwe6wrxdsu8vp2zt7lj1uuye

Closing Date/Time:

6/12/2023 5:00 PM

Submittal Information:

facilities@lakecountyca.gov

Addendum Date/Time:

5/1/2023 - 5/11/2013

Plan & Spec Available:

Please see BID Description for Additional (external) documents

Miscellaneous:

Thursday, 6/1/2023 at 5:00 PM PT Deadline for submittal of Proposals
Week of 6/12/2023 Vendor interviews
Friday, 6/23/2023 Select firm for negotiations.
June-August 2023 Vendor contract negotiations
Friday, 8/11/2023 Deadline for County meeting agenda item submittal
Early September 2023 County meeting for approval of contract
September-November 2023 System due diligence, design, and engineering
November-December 2023 County Building Department Review and Approval
December 2023-May 2024 Construction of system and permission to operate

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ATTACHMENT B: SYSTEM TECHNICAL SPECIFICATIONS AND REQUIREMENTS

Table of Contents

1. SITE ACCESS ................................................................................................................................................................ 2

2. PROJECT MANAGEMENT ....................................................................................................................................... 2

2.1 Project Manager.......................................................................................................................................................... 2

2.2 Project Schedule.......................................................................................................................................................... 2

2.3 Submittals ................................................................................................................................................................... 3

2.4 Solar and Storage Incentives ....................................................................................................................................... 4

2.5 Interconnection ........................................................................................................................................................... 4

3. SYSTEM DESIGN......................................................................................................................................................... 4

3.1 Design Review Process/ Phases .................................................................................................................................. 4

3.2 Contractors’ License Classification .............................................................................................................................. 5

3.3 Design Submittals........................................................................................................................................................ 5

3.3.1 Plan Set ................................................................................................................................................................... 5

3.3.2 Production Modeling .............................................................................................................................................. 6

3.4 Permits and approvals................................................................................................................................................. 6

3.5 Technical Requirements .............................................................................................................................................. 7

3.5.1 General Considerations .......................................................................................................................................... 7

3.5.2 Electrical Design Standards ..................................................................................................................................... 7

3.5.3 Modules .................................................................................................................................................................. 7

3.5.4 Battery Cells ............................................................................................................................................................ 8

3.5.5 Inverters.................................................................................................................................................................. 8

3.5.6 Electrical Balance of System Components .............................................................................................................. 8

3.5.7 Mounting Systems .................................................................................................................................................. 9

3.5.8 Corrosion Control.................................................................................................................................................... 9

3.5.9 Roofing Requirements .......................................................................................................................................... 10

3.5.10 Shade Structure Requirements ........................................................................................................................ 11

3.5.11 Ancillary Equipment Enclosures ....................................................................................................................... 11

3.5.12 Placards and Signage ........................................................................................................................................ 11

3.5.13 Infrastructure for Ground Mount Systems ....................................................................................................... 12

3.5.14 Wiring and Cabling Runs................................................................................................................................... 12

3.5.15 Grounding and Bonding.................................................................................................................................... 13

3.5.16 Shade Structure Lighting .................................................................................................................................. 13

3.5.17 Monitoring System, DAS, and Reporting .......................................................................................................... 14

3.5.18 FAA Requirements ............................................................................................................................................ 15

3.6 Warranties................................................................................................................................................................. 16

4. PROCUREMENT/CONSTRUCTION ....................................................................................................................16

5. TESTING AND COMMISSIONING........................................................................................................................18

6. OPERATIONS AND MAINTENANCE ..................................................................................................................23

1. SITE ACCESS

Contractor shall conform to all County rules and requirements for accessing sites. The County or the

applicable Authority Having Jurisdiction may regulate road usage, road closures, number of vehicles,

access points, etc. Site visits shall be approved, and proper check-in requirements must be followed.

Contractor shall provide signage and/or electronic notification of possible operational impacts upon

County request. Unless otherwise determined by County, Contractor shall be responsible for

providing bathroom and storage facilities for all workers on-site, and shall be responsible for

procuring, installing, securing, and removing temporary security fencing and scaffolding.

2. PROJECT MANAGEMENT

2.1 Project Manager

Contractor shall assign a Project Manager from their firm upon execution of the Agreement and

receipt of Notice to Proceed. The Project Manager shall ensure that all contract, schedule, and

reporting requirements of the Project are met and shall be the primary point of contact for the

County.

2.2 Project Schedule

A Project Schedule is to be prepared and submitted to the County within 10 days of Agreement

execution. The County will review and approve the Project Schedule prior to the initiation of work.

Updates shall be submitted every other week, though the County may allow less frequent updates at

their discretion. The submittal shall be a Critical Path Method (CPM) schedule describing all Project

activities including design, equipment procurement, construction, and commissioning. In particular,

Contractor shall include County review of submittals on the Critical Path. The schedule shall also

reflect the requirement that construction activities must be coordinated to minimize impacts on

normal operations at each site, including ongoing construction activities.

Sufficient information shall be shown on the Project Schedule to enable proper control and

monitoring of the Work. The Project Schedule shall show the intended time for starting and

completing each activity; the duration of each activity; submittal and approval times; design; delivery

of materials, equipment and software; all testing; and other significant items related to the progress

of the Work. The Project Schedule shall include a CPM network diagram of sufficient detail to show

how Mandatory Milestones are intended to be met. If a schedule submitted by Contractor includes

changes affecting the achievement of Mandatory Milestones, Contractor should clearly identify and

justify those changes.

Contractor is encouraged to phase the Work in a way that supports efficient and effective delivery of

design and build services. The following Mandatory Milestones shall be reflected in the schedule and

where applicable, represents the dates upon which each milestone is to be achieved for all sites in

this Agreement.

Mandatory Milestones

Mandatory Milestone

Date

50% Schematic Design submittal

90% Design Development submittal

100% Construction Documents submittal for

permitting

Approved Construction Documents

Notice to Proceed

Mobilization

Substantial Completion

Final Completion

2.3 Submittals

Contractor shall provide the following submittals as part of the performance of the Work. The cost of

developing and providing submittals shall be included in the Project price.

Agreement Submittals

Submittal

I. System Design

a. System Design Documentation

b. Warranties

c. Testing Plan

d. Power production modeling

II. Procurements and Construction

a. Safety Plan

b. As-built Documentation

III. Testing

a. Acceptance Test Results

b. Startup Test Results

c. Monitoring Data (Proving Period)

d. Proving Period Report

Submittal Date

At each design milestone

At Construction Documents milestone

30 days before commencement of

construction

After completion of Proving Period

After Acceptance Test

After Startup Test

Continually throughout Proving

Period

30 days after System Startup

Exhibit D.1

Section

TBD

IV. Training

TBD

a. Training Materials

30 days before Training Session

TBD

b. Monitoring Manual

30 days before Training Session

TBD

c. Operations & Maintenance

Manual

30 days before Training Session

TBD

2.4 Solar and Storage Incentives

Where applicable, Contractor shall submit applications for all available energy incentives or, should

the County already have submitted such applications, assume responsibility for all future

requirements (agreements, submittals, etc.) related to these programs. This includes actions

necessary to ensure compliance with all interconnection agreements and related documents for

County participation and utilization of the benefits of each applicable program. Contractor shall

attend all site verification visits conducted by the applicable public utility or Governmental Authority

and shall assist the County in satisfying the requirements of the incentive program. Contractor shall

be responsible for providing updated documentation to incentive program administrators

throughout the project, as required by rules of the relevant incentive programs.

2.5 Interconnection

Contractor shall be responsible for preparing, submitting, and procuring interconnection application

through appropriate utility and department. Contractor shall accept responsibility for payment for

utility interconnection studies and/or project management that are anticipated and required. All

anticipated utility work (e.g. transformer installation, meter addition) shall be the responsibility of

the Contractor. At project completion, Contractor shall confirm Permission To Operate with the

utility, and shall verify most financially-beneficial rate schedule and billing for the County.

Contractor must comply with all interconnection requirements. Systems installed as part of this

project will be connected under a Net Energy Metering Aggregation (NEMA) Agreement, unless

specified otherwise by County or its agents. Contractor shall be responsible for ensuring the system

design qualifies for a NEMA agreement, as applicable.

3. SYSTEM DESIGN

3.1 Design Review Process/ Phases

The County will review and approve design documentation based on the requirements in this RFP

and as detailed in Section 3.3 of this document. The County may request additional documents as

needed. Prior to the first design submission, the Contractor and County shall agree upon precise

organization and format of the design submittals. The County will review all submittals, provide

written comments, and conduct Design Review Meetings for each stage of the process. Contractor

shall provide additional detail, as required, at each successive stage of the Design Review. Contractor

shall not order equipment and materials until Schematic Design submittals have been approved.

Contractor shall not begin construction until Construction Documents have been approved and all

required permits have been obtained. The County will formally approve, in writing, each phase of the

design and is the sole arbiter of whether each phase of the design has been completed. The

Contractor shall not enter a subsequent design phase without the approval of the County.

Contractor is responsible for providing designs approved by the appropriate professional engineers

registered in the State of California. Costs for engineering reviews and approvals shall be borne by

the Contractor. System designs must consider County aesthetic issues and not conflict with any

current County operations.

3.2 Contractors’ License Classification

The County requires that Respondents possess, at the time of submission of a Proposal, at the time

of award of the Agreement and at all time during construction activities, a General Engineering

Contractor License (A), General Building Contractor License (B), Electrical Contractor License (C-10),

or Solar Contractor License (C-46). It shall be acceptable for a Respondent that does not possess a C-

10 or C-46 License to list a Subcontractor with a C-10 or C-46 License.

3.3 Design Submittals

3.3.1 Plan Set

Contractor shall prepare a comprehensive submittal package for each phase of the Work that will be

reviewed and approved by the County. At a minimum, each submittal package shall include the

elements required to convey in sufficient detail the following for each phase of the design, as

applicable:

• Site Layout Drawings, with distances from roof edges and existing buildings and equipment

• Underground Utilities

• Construction Specifications (trenching, mounting, etc.)

• Equipment Layout Drawings

• Electrical Single-Line and Three-Line Diagrams

• Module Stringing Diagrams

• Electric Wire and Conduit Schedule

• Electrical Warning Labels & Placards Plans

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Solar PV and Electric Vehicle Charger Design, Installation and Operation

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