ARRA PV Ground SOW - SOPS - Dig Permit Final 1-28-2010.pdf

General Services Administration Public Buildings Service

Denver Federal Center Lakewood, Colorado

RECOVERY

Grid Tied Ground Mounted and

Carport PV Systems Denver Federal Center, Lakewood, CO

Project # VCO 00019

RFP # GS-08P-10-JA-C-0016

Project Specifications

Project Drawings: Are considered “Sensitive But Unclassified” information. To obtain a compact disk that includes an electronic copy of the project drawings follow procedure in Section 00800

Special Contract Requirements.

Table of Contents

Pages

Section 1: General Requirements……………………………………………………7

Section 2: SOW, Design Build Guidance Criteria Ground Mounted and Carport Utility-Interactive Photovoltaic System...……….. 17

Dig Permit……………………………………………………………………………………………….. 10

Environmental Procedures

90-Day Storage Area: Emergency Hazardous Waste Spill Response………..…. 4

Chemical Storage & Disposal……………………………………………………… 2

Construction, Excavation, & Hazardous Waste Management …………………. 5

Excavation Permit ………………………………………………………………….. 2

Fugitive Dust Management…………………………….. …………………………. 2

Grounds Maintenance Chemical Usage …………………………………………. 4

Grounds Maintenance Water Usage ………………………………………………. 3

PCB Management …………………………………………………………………… 2

Recycling …………………………………………………………………………….. 4

Sanitary Sewer Discharge …………………………………………………………… 2

Spill Response ………………………………………………………………………. 1

Storm water Management …………………………………………………………… 4

Utility Metering-Energy Use …………………………………………………………. 1

SOP #5 Investigation Derived Waste Management …………………………………… 40

SOP #5C Investigation Derived Waste Management …………………………………. 3

SOP #6: Sample Handling ………………………………………………………………… 17

SOP #7: Borehole Abandonment…………………………………………………………. 8

SOP #13: Land Surveying…………………………………………………………………. 8

SOP #15: Data Management ……………………………………………………………… 38

SOP #17: Utility Clearance…………………………………………………………………. 3

SOP #23: Spatial Data Submittals……………………………………………….………… 20

SOP #26: Asbestos Inspection Procedures for Surface and Subsurface Soil………… 20

SOP #26A: Asbestos Excavation Procedures for Utility Construction ……………….. 32

SOP #26B: Asbestos Excavation Procedures for Post Hole Drilling/Digging ……….. 26

SOP #27: Remediation of Asbestos in Soils…………………………... ……………….. 32

Section 1 General Requirements

RECOVERY, Grid Tied Ground Mounted and Carport PV Systems Denver Federal Center, Lakewood, CO

Project # VCO 00019

Date

January 25, 2010.

Project Location

Denver Federal Center, One Denver Federal Center (W. Alameda Ave, and S Kipling St.) Lakewood, CO. Ground mounted arrays are located in the Denver Federal Center in the northwest land area, south of 6th Ave and southeast land area, south of visitor gate #1. The Carport PV sites are located at the parking areas for Buildings # 20, 25, 53, and 810.

Project Points of Contact

Diane Byers, Contracting Officer Phone: 303-236-8000 Ext. 5054 Fax: 303-236-8081

Charlie Rienhardt, Contracting Officer’s Representative Phone: 303-236-8000 Ext. 5325 Cell: 303-204-7009

Project Duration

Once Award has been issued, the Contractor has 420 calendar days to complete the project. PV Field 1 will be available for construction approximately 100 days following contract award.

Project Scope

The project will involve installing two ground mount solar arrays, seven, (7), carport PV arrays, and “Alternates” to possibly install up to three, (3), carport PV arrays.

See attached specifications for details.

The base carports are numbered “Base 1 thru Base 7” for future individual identification.

All work shall comply with codes and standards applicable to each type of work through the course of this project. Contractor shall also comply with the requirements of PBS P-100.

Environmental Issues

There are environmental issues at some of the ground and carport sites. The soil in the PV Field 1 has been tested and contains trace amounts of asbestos. This area is scheduled for ACM remediation during the spring of 2010 to clear the site of ACM contamination. See attached Dig Permit and Environmental Procedures for actions and procedures to follow when excavation is required to install underground conduit and equipment pads.

Submittals

All products specified are to establish a standard of quality. Submittal response by the Government shall be 14 calendar days or less. See specifications for specifics of submittal requirements.

Equipment

The Contractor shall provide all equipment associated with the entire project, operate in a safe manner and adhere to all OSHA and GSA standards.

Equipment and Material Storage

The Contractor shall provide and store all equipment, the materials specified above, and any other materials required to complete the project. The materials are required to be kept appropriately protected throughout the duration of the project. The Contractor has a designed staging area for their use and this may be fenced for security purposes.

Material Removal

The Contractor shall provide dumpsters as necessary to handle any demolition or excess materials from the project. The location of these dumpsters will need to be coordinated with GSA at the start of the project. The Contractor shall be responsible for the transportation of any waste material to an appropriate landfill as well as all associated costs. The Contractor shall not stockpile demolition debris for more than 48 hours. See also paragraphs titled “Waste Management” and “Disposal”, as well as the Dig Permit for further requirements.

Contractor Use of the Premises

During the period of the project, the Contractor will have access to the site only during business hours of Monday through Friday, 6 AM to 6 PM. No on-site work shall be performed outside these hours or on holidays unless necessary to recover planned schedule or otherwise directed by the Contracting Officer. The Contractor will need to coordinate with the Contracting Officer to arrange access to the Denver Federal Center. The Contractor shall make every effort to cause a minimum of damage to parking lots, any other paved areas, any items that need to be moved during the course of the project, and any areas not included in this scope of work.

Any damage caused will be repaired at the Contractor’s expense. The unpaved staging areas shall be restored following use by grading to return to original surface condition and by seed and mulch applied during fall, winter or spring. Seed mix requirements will be provided by GSA. See Sections 2.2, 9 & 10 for details on ground restoration.

Progress Meetings

The Contractor shall schedule weekly meetings with the GSA and Subcontractors once on-site work begins. The Contractor shall generate an agenda and keep meeting minutes and distribute copies at the following meetings. The meeting agenda will include the following as a minimum: Approval of previous meeting, review of work progress, field observations, problems and decisions, identification of problems which impede planned progress, review of submittals schedule and status of submittals, maintenance of progress schedules, planned progress during the succeeding work period.

Sanitary Facilities

Provide and maintain temporary toilet facilities in accordance with State Health Department and GSA requirements. These shall be located at staging areas or land areas.

Electricity and Water

The GSA will pay for electricity and water during the course of this project. The Contractor is responsible for making connections to the existing systems. Temporary electrical work shall meet the requirements of NFPA 70-1996 (NEC), Article 305.

When temporary connections are removed, restore existing utility services to their original condition.

Telephone

Telephone service is not available on-site for the Contractor’s use.

Utility Outages and Locates

No utility outages will be approved without the written consent and approval of the Contracting Officer’s Representative. Requests for utility outages (electrical, telephone, gas, water, chilled water, hot water, fire sprinkler system, and fire detection system) must be received 14 calendar days before the outage date.

Planned outages to the 13.8 kV medium distribution system will need to be planned 21 calendar days prior to requested outage. The outage will be for either the ‘X’ or ‘Y’ circuit as the other circuit needs to be kept in service.

The Contractor shall be responsible for locating all utility lines shown on available drawings and other lines subsequently discovered by the utility locates performed by the Contractor. If utilities are to remain in place, use caution during earthwork operations to avoid impact. The Contractor shall be responsible for any damage to the located utilities if found in the located position, or as indicated on the available drawings.

Contacts for Utility Locates:

DFC SERVICE CENTER: Utility Notification Center of Colorado @ 1-800-922-1987 for the following entities Xcel Gas lines and US West Phone lines:

High Voltage- Mandatory Contractor Sturgeon Electric Company Mr. John Carnell, Senior Contracting Officer’s Representative Office Phone 303-227-6995 Cell Phone 303-478-2496 There is a charge for this locate.

Two Hour minimum- approximately $99.00 per hour, $130.00 per hour for overtime

Government Communication Lines- Mandatory Contractor Premisys Support Group Anticipate the following cost: $65.00 – 2 hour minimum.

Mr. Phil Martinez Cell Phone: 303-358-7068 Office Phone: 303-238-4636

Irrigation Lines: Joppa Maintenance Company Mr. Tim Hancock Office Phone: 303-232-4435 Cell Phone: 303-210-7355

For all other locates contact the Contact Contracting Officer’s Representative.

Contractor’s Field Office

The Contractor may provide an office for their use. Location shall be in designated staging areas.

Storage Sheds

Temporary weather tight sheds or other covered facilities shall be used for the storage of materials subject to weather damage. The number and size of structures shall be subject to the Contracting Officer’s approval. Sheds shall be stored in staging areas.

Protection of Public

The construction sites will continue to be used by tenants. The Contractor shall fence, barricade, or otherwise block off the immediate work area to prevent unauthorized entry. The Contractor shall illuminate barricades and obstructions at night and maintain safe building access and egress for tenants. It is recommended the Contractor fence staging areas as needed.

Housekeeping

The project site shall be kept in a neat, orderly, and safe condition at all times. The Contractor shall provide enough containers for collecting construction debris and construction materials to be recycled. The Contractor shall wet down dry materials and rubbish to prevent blowing dust and keep volatile wastes in covered containers.

Before final inspection, thoroughly clean project site ready for use.

Disposal

Unless otherwise specified, all removed material becomes the property of the Contractor and shall be disposed of outside Government facilities and land. The Contractor shall dispose of refuse at least monthly, in a legal manner, at a public or private dumping area. Document and provide to the Contracting Officer the quantity of materials disposed of through recycling and through sanitary landfills. The Government must sign all waste manifests before any waste leaves the Denver Federal Center. Manifests shall be delivered to the Contracting Officer within (5) calendar days of receipt from waste disposal site. See also “Waste Management”.

Waste Management

The GSA has established that this project shall generate the least amount of waste possible. The Contractor shall employ processes which ensure the generation of as little waste as possible and avoid the generation of waste due to over-packaging, error, poor planning/layout, breakage, contamination, damage from weather, etc. Of the inevitable waste that is generated, as many of the waste materials as economically feasible shall be reused, salvaged, or recycled. Waste disposal to a landfill shall be minimized to the greatest extent possible. Cardboard waste from packing shall not be sent to landfills but shall be transported to the cardboard bailers located in either Building #20 or #41. Wood pallets shall be recycled. Miscellaneous metal waste shall be at a minimum recycled as ‘scrap metal’ by the Contractor.

See also “Disposal” for record keeping requirements and Environmental Procedures.

Transportation and Deliveries

The Contractor shall arrange deliveries of materials in accordance with construction schedules and coordinate with the COR to avoid conflict with other tenants and other work conditions at the site.

Cleaning

Before scheduling the final inspection, the Contractor shall accomplish six items: (1) Remove all tools, equipment, surplus material, and rubbish; (2) Restore or refinish, to original condition, surfaces that are damaged due to the work of this contract; (3) Remove grease, dirt, stains, foreign materials, and labels from finished surfaces; (4) Thoroughly clean building interiors; (5) Pick up all construction debris from the site;

and (6) Before final inspection, thoroughly clean project site ready for use.

Project Record Drawings

Maintain one complete full-size set of contract drawings and submittals. Clearly mark changes, deletions, and additions using GSA CAD Standards to show actual construction conditions. Show additions in red, deletions in green and special instructions in blue print. Provide (3) half sized sets of contract drawings and (3) CD’s to the Contracting Officer when available. See other specification sections for additional requirements.

Substantial Completion and Final Inspection

When project, or designated portion of project is complete, request a final inspection.

Upon receipt of request that project is substantially complete, the Contracting Officer will proceed with the inspection within ten (10) calendar days of receipt of request or will advise the Contractor of items that prevent the project from being designated substantially complete.

Recovery Project Signage Install an exterior mounted project sign at PV Field 1 and 2. Each sign shall be 12 feet by 6 feet, constructed of a durable, weather resistant material, properly and securely framed and mounted where indicated by GSA. The font used shall be Helvetica, full bleed. Sign content will be provided by GSA at a later date, but will include as a minimum the following: name of building, Contractor’s name, U.S.

General Services Administration – Public Buildings Service, Barack Obama- President of the United States, (Administrator’s name)- Administrator, GSA, (Name) Commissioner, PBS, Regional Administrator’s name), Region 8 Administrator.

Install an interior mounted project sign in the main entrance lobby of Buildings; 20, 25, 53 and 810. Each sign shall be 4 feet by 3 feet, constructed of a durable material, properly and securely framed and mounted where indicated by GSA. The font used shall be Helvetica, full bleed. Sign content will be provided by GSA at a later date, but will include as a minimum the following: name of building, Contractor’s name, U.S. General Services Administration – Public Buildings Service, Barack Obama- President of the United States, (Administrator’s name)- Administrator, GSA, (Name) Commissioner, PBS, Regional Administrator’s name), Region 8 Administrator.

Electronic Project Management, ePM

1.0 PURPOSE

GSA may require the Contractor to utilize an Enterprise electronic Project Management (e- PM) system on this project. GSA’s goal is to implement this state-of-the art technology to reduce administrative and overhead costs, eliminate redundancies, and institute a collaboration tool to ensure better accountability among all project team members. This technology will provide up-to-date information, encourage disciplined methods for monitoring progress, ensure better communication regarding changes, provide improved documentation, and enable PBS executives to have real-time access to status of projects.

2.0 DEFINITION

e-PM is defined as an internet-based information and project communication system that allows the entire project team to collaborate in a centralized and secured repository. Should GSA elect, all project-specific correspondence, workflow processes, and documentation will be stored and routed within the ePM system.

3.0 PROJECT DOCUMENTATION

Should GSA elect to initiate the use of ePM, the Contractor is required to timely and accurately post, review, respond, and collaborate with other team members using the following features and/or workflow processes within the ePM system. If the use of ePM is not initiated by GSA the following deliverables shall be delivered to GSA, both electronic and hard copies.

Project Team Directory – The Contractor shall provide an updated directory of contact information for all companies, Subcontractors and project team members who are engaged on this project.

Schedules – The Contractor shall post, review, and/or respond to CPM schedule updates within the ePM system.

Meeting Minutes – The Contractor shall enter meeting agendas, records and minutes in the system for all applicable meetings as designated by the GSA PM.

Project Correspondence – The Contractor shall manage and maintain all incoming and outgoing correspondence and associated logs for all correspondence related to the project.

Budget and Cost Management – The Contractor to provide estimates and work breakdown structure (WBS) to provide GSA with accurate budget/cost analysis.

Contract Management – The Contractor to provide administration of all contract tasks related to the project.

Progress Photos – The Contractor shall upload all progress photos into the system.

Permits & Approvals – The Contractor shall upload and maintain current copies of all permits and agency approvals that relate to the project.

Design Drawings/Design Packages – The Contractor shall submit design drawings and design packages into the system.

Design Review Comments – The Contractor shall post and/or respond to design comments related to his/her role in the project team

Daily/Progress Reports – The Contractor identified in e-PM shall maintain construction progress reports, daily reports/logs, and documentation of inspections.

Inspection Reports – Maintain inspection reports on materials and/or workmanship to assure compliance with all construction requirements.

Safety/Injury Reports – Maintain reports on construction Contractors' compliance with current safety regulations and standards.

Punch lists – Maintain list(s) of observed defects and omissions.

Request For Information (RFI) – The system shall manage the RFI process and all Request for Information shall be entered and responded to by the Contractor within the e-PM system.

Issue Tracking – The Contractor to log and respond to issues that are related and affect other stakeholders within the project team.

Submittals – The system shall manage the submittals and the Contractor is responsible for uploading submittal documentation and using the system to track the submittal process.

Change Management – Cost Events and Change Orders will be managed by the e-PM system and the Contractor shall be responsible for reporting potential changes and logging Requests for Change Orders in the system. The Contractor shall also upload and manage all documentation supporting Requested Change Orders.

Shop Drawings – The Contractor shall submit all shop drawings in the system for review by GSA (and the CM where applicable).

As-built Drawings and Specifications – The Contractor shall use the system to record all approved specifications as well as all as-built construction documents.

GSA reserves the right to require the Contractor to upload other documentation as needed to support the project.

4.0 EQUIPMENT AND TRAINING

The e-PM system is based on the Proliance software that was developed by Meridian Systems. Users will be provided a username and password after they have completed the HSPD-12 process. The Contractor shall log into the e-PM system to enter the Project Documentation listed in section 2.0.

GSA will hold several training sessions to familiarize team members with the system, and key Contractor staff are expected to attend one of these sessions or otherwise receive proper training on the system’s use. Furthermore, all Contractor team members who are actively participating on the project must have access to the proper computer equipment and software to access and utilize the e-PM system and be trained in the proper usage of said equipment and software. All workstations require a high-bandwidth Internet connection.

5.0 DATA OWNERSHIP

GSA shall retain ownership of all data entered into the system and shall administrate and distribute all information contained therein.

6.0 REFERENCES

PBS SECURITY ORDER 3490.1 (March 8, 2002)

GSA Submittal Processing

Prepare and submit a submittal schedule in accordance with project requirements.

The Contractor shall review all submittals for compliance with the project criteria.

GSA reviews do not relax the Contractor’s responsibility to comply with criteria established in the RFP and other contract references. Should GSA elect, all submittals shall be processed using the ePM system in accordance with procedures developed and approved by GSA. Ensure that all Subcontractors understand, agree to, and conform with their respective roles, responsibilities, and timeliness requirements for submittal processing.

Clarifications/Requests for Information/Change Orders

Should GSA elect, the Contractor shall use the Proliance ePM system, and in accordance with procedures developed and approved by GSA, promptly submit to GSA a written request for information (RFI) to request clarification of any apparent conflicts, ambiguities, or omissions in the contract requirements. Ensure that all Subcontractors understand, agree to, and conform with their respective roles, responsibilities, and timeliness requirements for RFI processing.

Each RFI shall include a specific description of the issue requiring clarification, citing the specific related contract documents requiring clarification. RFIs shall only be submitted after performing due diligence to confirm that the contract requirements in question are in fact unclear or otherwise inadequate.

Section 2 Statement of Work

Design Build Guidance Criteria RECOVERY- Grid Tied Ground Mounted and Carport PV Systems

1. PROJECT IDENTIFICATION

1.1. Project: RECOVERY- Grid Tied Ground Mounted and Carport PV Systems. PV Fields 1 & 2 and Carport PV, Buildings 20, 25, 53 & 810 Parking areas.

2. BACKGROUND

2.1. Objective. The Contractor shall provide a total “turnkey” project including design and installation of a ground mounted photovoltaic system with the following characteristics: PV Field areas1 & 2: (Approximately 2 Megawatts) and Buildings 20, 25, 53 and 810 Carport PV system ranging from 46 Kw to 99 Kw DC. (Up to 10 building carport systems) The overall capacity of these areas shall produce a minimum of 4,115,000 kWh per year, approximately 3 megawatts DC. This project shall meet all technical requirements of this Statement of Work.

2.2. Scope: The Contractor shall perform all necessary work to provide GSA with a complete design package in accordance with the requirements in this Statement of Work. The design package shall include specifications, calculations and drawings which will be turned over to GSA. After approval by GSA of the final design package, the Contractor shall provide all necessary construction to successfully install the photovoltaic system. The design effort shall include appropriate electrical engineers and other engineering disciplines and appropriate landscape designers and who have native vegetation expertise.

2.2.1. Design Guidelines Ground Mounted PV. Develop a design for a new photovoltaic system for PV Fields 1 & 2 See attached drawings indicating the existing areas and setback requirements from existing fences and other resources.

2.2.1.1. PV Field 1 is located adjacent to the Denver Federal Center’s main entrance gate. Given the highly visible location and the desire to maintain natural conditions in this area the site layout plan and design shall utilize design measures that reduce the environmental impact and visual impact of the PV array and must be sensitive to and compliment both the natural features of the site and the surrounding landscape.

2.2.1.2. The design for PV Field 1 shall utilize landscape plantings appropriate for the area and possible constructed landforms (berms, mounds, grade changes) to soften and integrate the array into the proposed site. These landforms and landscape plantings shall be within PV Field 1 and within the landscape buffer zone noted. These plantings shall not inhibit the functionality of the PV panels or create maintenance issues. (Sections 9 and 10 provide more details).

2.2.1.3. PV Field 1: Contains three wells along the Eastern fence line. The Contractor’s design shall allow for three feet of access around one of the three wells, GSA will decommission the remaining two wells before construction starts but after design approval. The wells will be shown during the scheduled site visit.

2.2.1.4. PV Field 1: Contains a deep water well at the South East corner. The Contractor’s design shall allow for 10 feet of access around the well. The well will be shown during the scheduled site visit.

2.2.1.5. PV Field 2: Contains a well on the Western edge of the dog-leg along the North side. The Contractor’s design shall allow for three feet of access around this well. The well will be shown during the scheduled site visit.

2.2.1.6. PV Field 2: RTD is scheduled to construct a Light Rail bridge over 6th

Avenue just West of PV Field 2. The Contractor may be required to share access to PV Field 2 with associated RTD construction vehicles.

2.2.1.7. DFC Wide: The DFC is currently replacing a significant amount of its underground infrastructure which may lead to site congestion.

2.2.1.8. The Contractor shall preserve where appropriate and enhance the natural site elements. The design shall incorporate the planting of low growing native vegetation/grasses that are xeric in their water needs and would not interfere with the PV arrays operation. The Contractor shall provide temporary irrigation to establish this groundcover and vegetation and remove this system once the plantings have been established.

2.2.1.9. The Contractor shall appropriately address measures to be taken during construction to minimize dust, prevent storm water erosion, protect important resources, and minimize invasive weed infestations.

2.2.1.10. The array design shall appropriately address expected environmental conditions of snow, ice, and wind. If a single axis tracking system is proposed it shall be designed to operate and function efficiently and effectively in this local environment.

2.2.1.11. The Contractor shall provide a ground mounted system with a fixed tilt or single axis tracking and an orientation that maximizes annual energy production.

2.2.1.12. All roof access points shall be securely locked at the end of each day.

2.2.2. Design Guidelines for Carport PV. The carport shall be designed to be supported by central support posts and cantilever over parking spaces on both sides, like a ‘T’, to minimize interference in snow clearing operations. All carports are intended to be of similar design at approximately 38’ wide to cover two cars parked end to end and of varying lengths. See drawings for details. The width may range between 36’ and 40’ and lengths may be adjusted by plus or minus four feet to match and optimize various panel layouts. To minimize snow slabs from sliding off the array and allow for drainage, the PV panels on the carport shall be sloped at 5 degrees or have some other method to control this occurrence. The carport PV shall be at least 9 feet clear in all locations. Carport design shall drain water to south side or west side (Bldg 810) and shall drain into a gutter to minimize icicles. The gutter shall drain into subsurface water infiltration basin or a vegetated ‘rain garden’ (swale) that can allow the drain water to infiltrate into the ground.

Lighting shall be provided under each array. This lighting shall be LED and allow for adjustable times for illumination with photocell controls to turn on the lights at dusk for variable times and turn the lights on in the morning prior to daylight. Refer to drawings for each carport PV location as some will require removal of existing parking lot lights where the new carports will be located. Removed lighting shall remain the property of GSA and be stored on the DFC as directed. Utilize this lighting circuit to power the new carport lights at Buildings 20, 25 and 810 and bring in a circuit to power these lights at Building 53.

2.2.3. The following performance criteria shall be met:

Power provided shall be 13.8 kV three phase for ground mounted PV and 13.8 kV or 480V for carport PV, compatible with the onsite distribution system. See drawings for connection options and connection locations. Estimated energy delivery shall be provided for each PV Field or carport, for each month of the year and total for the year at the delivered voltage (480V or 13.8 kV). The STC power value will be entered into PVWATTS http://rredc.nrel.gov/solar/codes_algs/PVWATTS/version1/ to determine estimated energy delivery in kWh. A suggested DC to AC De-rate factor is 0.77, however more efficiently engineered and designed systems are encouraged. Support the De-rate factor’s used.

All PV hardware components shall be corrosion resistant.

The design shall meet the local, state and federal criteria for wind, snow and seismic loads.

2.3. Technical Requirements and Reference Materials

2.3.1. Code Compliance – Installation and equipment shall comply with applicable building, state, seismic, structural and electrical codes. All products that are listed, tested, identified, or labeled by UL, FM, ETL, or other National Recognized Testing Laboratory shall be used when available. Non-listed products are only permitted when listing does not exist. Non-listed products must be identified as such in all submittals. The publications listed below form a part of this document to the extent required to meet the intent of the design:

PV Interconnection Standard 929-2000 NEC Sec 720, also Article 690, 90-2 - Electrical installations of PV

Equipment. Recommended installation practices (March 2001) IEEE 1262 – PV Module Qualification for performance & reliability UL 1703 Flat – Plate PV Modules and Panels UL 1741 – Standard for Static Inverters and Charge Controllers for Use in

Photovoltaic Power Systems FM Approved – Fire Protection tests for Solar Component products

Other technical codes that shall apply include:

AMSE PTC 50 (solar PV performance) ANSI Z21.83 (solar PV performance and safety) NFPA 853 (solar PVs near buildings) NFPA 70 (electrical components)

NEC

IEEE 1547 (interconnections) ASCE/ SEI-7 – American Society of Civil Engineers – “Minimum Design Loads for Buildings and Other Structures”.

The design wind speed based on 3 second gust speed should be: 177 km/hr or 110 m/hr.

Wind exposure (B or C) should be determined by your engineer for each building as it could be different.

3. Ground Snow load use Uniform Building Code.

2.4. Roles and Responsibilities:

2.4.1. Contractor. The Contractor is required to provide:

Design Concepts Construction Documents and engineering calculations that are Signed and

Sealed by a licensed architect / engineer Submittals for Materials and Products Construction materials and labor Design and Construction Supervision / Contract Management Materials / Equipment Quality Control Plan Safety Plan Inspections and Tests Manuals (Design Calculations, Operation/Maintenance, Shop Drawing, etc.)

Commissioning of systems Training of Building Operating Staff Operation and Maintenance during first year Web Based Monitoring System for 10 years

2.4.2. Government. The Government will review for approval:

Review / comment on design submittals, including the Quality Control Plan Inspection / Test Witnesses to verify attainment of performance requirements Progress payments for design / construction shall be as agreed to in the approved schedule of values.

3. CONCEPT DRAWINGS AND SPECIFICATIONS

3.1. System Placement. The placement shall be shown in the concept drawings provided to the Government with the technical proposal.

3.2. Concept Drawings. The Contractor shall provide the Government with concept drawings with the technical proposal. The drawings must indicate the proposed location and layout of the PV array (with rows, azimuth, tilt and spacing noted) carport PV, mounting and support systems for both ground and carport PV, and single axis tracking system design if used.

Provide a one-line electrical diagram showing inverters, transformers, meters, and interconnection locations. For PV Field 1 provide a concept drawing showing landscape and remediation design proposed to meet design guidelines. Indicate any proposed grade adjustments for the land areas. All drawings shall be submitted with dimensions shown in English units.

3.3. Concept Information. The technical proposal shall include major equipment information, proposed installation/interconnection information, and performance characteristics of the system per each PV Field and carport PV. All products shall comply with the technical requirements shown under Section 8, “Solar Electric Modular Array”. At a minimum, the proposed concept information shall include:

Equipment Information:

1. Power Rating Per Module

2. Number of Modules

3. Total Array Output

4. Number of Inverters

5. Inverters Continuous AC Rating

6. Estimated Total Inverter Output

7. Estimated Inverters Peak Efficiency and efficiency at various output levels

8. Mounting structure layout

Installation Interconnection Information:

1. Solar Electric Array Orientation (degrees)

2. Solar Electric Module Tilt (degrees)

3. System Type and Mode of Operation (Utility Interactive)

Performance Characteristics

1. Estimated kWh/month per system (shown over a 12 month period)

Landscape Design and Restoration

1. Grading plan

2. Landscape plan

3. Restoration and groundcover plan

4. DESIGN SERVICES

The design for this project shall require a 25% schematic design submission (25%), a 75% Design Development Submission, a 100% Check Set Submission and a Construction Document Submission.

A final set of as-built drawings shall also be provided to the Government. These submissions shall be delivered to the Government based on the project schedule submitted and approved by GSA. The design package shall include the following:

4.1. Pre- Construction Meeting: After receipt of the contract award, and before the project commences, the Pre- Construction meeting will be attended by GSA team members and the Contractor’s personnel. At a minimum, the prime Contractor’s project manager and foreman, the primary designer, and a representative of all Subcontractors must attend. The purpose of the meeting will be to discuss the Contractor’s plan for completing the design and construction.

4.2. Specifications: The specifications shall include all equipment information, proposed installation/interconnection information, and performance characteristics of the system.

4.2.1. All drawings, estimates, calculations, and specifications shall be in English units.

4.2.2. The Contractor shall take into account a construction plan producing a minimum disruption of day-to-day activities, utilities, services, etc.

4.3. Construction Drawings:

4.3.1. Provide all contract drawings required in accordance with Section 8, “Solar Electric Modular Array”. Provide drawings for each discipline required (architectural, structural, electrical, landscape, etc.), with separate plans for new work and demolition as well as special types of drawings where necessary. Drawings shall clearly distinguish between new and existing work.

4.3.2. Each drawing shall indicate project title, project number, building name, building number, building address, A/E firm, A/E's address and/or phone number, contract number, drawing title, drawing type, drawing number, and key plan. A cover sheet shall be provided and shall include a list of the drawings, legend, vicinity map, and location map in addition to all items required for each drawing. Each A/E submission shall be clearly dated and labeled (e.g.25% Schematic submission, 75% Design Development Submission, 100% Check Set Submission, Construction Document Submission, As-Built Drawings, etc.). Each drawing sheet submitted shall include a graphic scale in the lower right-hand portion of the sheet.

The final set shall be stamped by a registered engineer and/or registered architect for the state in which the building is located. At a minimum, the following drawings are required:

Site Plan Including Utility Locations and Connections – shall show staging and phasing requirements.

Electrical Plans – including Single Line Diagram and Utility Interconnection.

Electrical Details.

PV Array support and mounting details.

Landscape Plans showing grade adjustment areas, plans for landscape buffer zone, landscape plantings and areas to preserve, ground cover restoration and establishment details, temporary irrigation details.

Any drawings that may be required to install a complete project.

4.3.3. Specifically address the means to keep the existing building accessible and operational by means of relocation and / or phasing.

4.4. Calculations: The Contractor will provide the following calculations.

4.4.1. System Electrical Calculations: provide with design development and again with 100% check set.

PVWATTS Calculation.

System Energy Production Calculation showing estimated monthly and yearly energy output for each system.

4.5. Registration Seals: Each final working drawing and each submitted specification and calculation document shall be signed by, bear the seal of, and show the State Certificate Number of the Architect and / or Engineer who prepared the document and / or is responsible for its preparation.

5. DESIGN SUBMISSIONS

5.1. Design Reviews: For each design / drawing submission, the Government reserves the right to make comments and request changes after the receipt of the submission. Reviews will be made by Government staff. The Government shall provide review comments within fourteen

(14) calendar days of receipt each submittal.

If the Contractor disagrees with any Government design comments or requested changes that will result in a change in the contract cost, they shall notify the Contracting Officer and Contracting Officer’s Representative within seven (7) calendar days of receiving the comment(s) and provide detail cost estimate of anticipated contract modifications.

5.2. Resolution of Comments: The Contractor shall respond to all design review comments in writing, indicating one of the following: (1) Adoption and action taken, (2) Adoption with

Modifications and action taken, (3) Alternative Resolution and action taken, or (4) Rejection.

In cases other than unqualified adoption, the Contractor shall provide a statement as to why the reviewer's comment is inappropriate. Rejection items shall not go forward to the construction phase until adequate resolution to the rejected item has been approved by the Contracting Officer. Design review comments shall not relieve the Contractor from compliance with terms and conditions of this contract. Contractor's comment resolution shall be transmitted to the Government within seven (7) calendar days of comment receipt and incorporate discussions from the scheduled design comment review meetings.

6. UTILITY INTERCONNECTION AGREEMENT

6.1. The Contractor is responsible preparing required submissions for obtaining the interconnection agreement from the utility. GSA will sign the interconnection agreement, not the Contractor.

7. QUALITY CONTROL PLAN (QCP)

7.1. Content: For each performance and installation requirement, the QCP shall identify the item or system to be tested, exact test(s) to be performed, measured parameters, inspection/testing organization, and the stage of construction development when tests are to be performed. Each inspection/test shall be included in the overall construction schedule.

The Contractor is not relieved from required performance tests should these not be included in the plan.

The QCP is intended to document those inspections / tests necessary to assure the Government that product delivery, quality and performance are as required. It also serves as an inspection coordination tool between the Contractor and the Government. Examples of these inspections/tests are the final test / inspection for overall performance compliance of the system. Results from tests and inspections shall be submitted within 24 hours of performing the tests and inspections.

7.2. Submissions: The QCP shall be prepared and submitted within 21 calendar days of the award date. The QCP may be rejected as incomplete and returned for resubmission if there is any performance, condition or operating test that is not covered therein.

7.3. Updating: During construction, the Contractor shall update the QCP if any changes are necessary due to any changes or schedule constraints. The Government's Contracting Officer's Representative (COR) shall be notified immediately of any proposed schedule and/or procedural changes.

8. SOLAR ELECTRIC MODULE ARRAY

8.1. Photovoltaic Modules

8.1.1. PV Modules shall be UL Listed and shall be properly installed according to manufacturer’s instructions, NEC, and as specified herein.

8.1.2. The PV modules shall be installed such that the maximum amount of sunlight available year-round on a daily basis should not be obstructed. All projects must include documentation of the impact from any obstruction on the seasonal or annual performance of the solar electric array. This analysis can be performed by using the New Jersey Clean Power Estimator on the program website www.njcep.com or similar.

8.1.3. The solar electric system shall produce the minimum annual energy output. If the system is proposed to produce more than the minimum required energy output to reduce the cost per delivered kWh then the system shall produce the “proposed” energy. The output will be adjusted if the actual yearly solar insulation received is less than that indicated by PVWATTS. A normalizing calculation will be made to correct the output, so a Contractor is not penalized for an extremely cloudy year.

8.1.4. System may be constructed using tilted or single axis tracking solar photovoltaic system.

The system must still be shown to perform as required.

8.1.5. System wiring shall be installed in accordance with the provisions of the NEC.

8.1.6. All modules installed in a series string shall be installed in the same plane.

8.1.7. PV modules shall have a 25-year limited warranty that modules will generate no less than 80% of rated output under STC. PV modules that do not satisfy this warranty condition shall be replaced.

8.1.8. Panel installation design shall allow for the best ventilation possible of panels to avoid adverse performance impacts.

8.1.9. Ten (10) extra PV panels shall be provided for each type of panel installed.

8.1.10. Warranty: Provide a panel manufacturer’s warranty that will provide as a minimum: No module will generate less than 90% of its specified minimum power when purchased. PV modules shall have a 25-year limited warranty guarantying a minimum performance of at least 80% of the original power for at least twenty (20) years. Measurement made under actual installation and temperature will be normalized to standard test conditions using the temperature and coefficients published in the module specifications.

8.1.11. Ground mounted PV shall be a minimum of 24” above the ground to reduce interference with snow and vegetation.

8.2. Inverter and Controls

8.2.1. Each inverter and associated controls shall be properly installed according to manufacturer’s instructions.

8.2.2. The inverter shall be certified as compliant with the requirements of IEEE 929 for small photovoltaic systems and with UL 1741 specifically for utility grid interconnection of PV arrays. The Inverter shall have at a minimum the following features:

UL/ETL Listed Peak Efficiency of 96% or higher Inverter shall have operational indicators of performance and have built in data acquisition and remote monitoring.

The inverter shall be capable of parallel operation with the existing AC power.

Each inverter shall automatically synchronize its output waveform with that of the utility upon restoration of utility power.

Inverters shall be have UL 1741 Certified, for approved list of inverters see http://www.gosolarcalifornia.org/equipment/inverter.php

8.2.3. The system should be equipped with the following visual indicators and/or controls:

Operating mode setting indicator AC and DC overcurrent protection Operating status indicator

8.2.4. Warning labels shall be posted on the control panels and junction boxes indicating that the circuits are energized by an alternate power source independent of utility-provided power.

8.2.5. Operating instructions shall be posted on or near the system.

8.2.6. Provide detailed Lock Out / Tag Out instructions for all equipment.

8.2.7. Power provided shall be compatible with on site electric distribution systems.

Install inverters and control panels in most optimum locations with appropriate environmental protection. If inverters are mounted outside they shall be shaded from direct sun from 12 PM to 4 PM in the months of June – August and be able to be secured.

8.2.8. The inverter and system shall utilize an astronomical timer or other means to shut down the inverter during night time to avoid energy usage at night.

8.2.9. Warranty: a ten year manufacturers warranty shall be provided.

8.3. Control Panel to Solar Electric Array Wire Runs

8.3.1. All interconnecting wires shall be copper.

8.3.2. Wiring connections shall be properly made, insulated and weather-protected.

8.3.3. All power wiring shall be attached to the system components by the use of strain reliefs or cable clamps, unless enclosed in conduit.

8.3.4. All outside wiring shall be rated for wet conditions and/or encased in rigid or aluminum conduit. The last three feet may be liquid tight to allow for movement and maintenance.

8.3.5. All wiring splices shall be contained in UL-approved junction boxes with hinged lids.

8.3.6. All field electrical devices shall have the capability to be locked as appropriate.

8.4. PV Monitoring

8.4.1. The PV systems installed shall provide for monitoring by both GSA on their advanced metering network as well as by the general public on a web based site. The public site is intended for education and outreach regarding renewable energy production and information on avoided green house gas production. The public site shall be maintained for ten years.

The public PV monitoring website shall be one site displaying the three separate arrays production information with a summary of total renewable energy produced as well as the information noted in Specification Section 2, Paragraph 8.4.2. Provide information regarding avoided greenhouse gas production for the total site production.

8.4.2. Monitor by an IP addressable device and displayed graphically in a user-friendly manner the following parameters:

DC voltage DC current DC power AC power AC energy Solar irradiance PV cell temperature Ambient air temperature Show status of all equipment Provide electrical one line showing operation and performance of all equipment

Data shall be available both in real time and archived in fifteen-minute averages. All monitoring hardware and monitoring equipment shall be provided by the Contractor.

System shall also include metering for remote data collection and display on vendor provided web site of system performance. System performance shall allow display during different monitoring periods from 1 hour to 1 year.

8.4.3. Provide networking equipment, engineering, programming, wiring, and software to allow remote connection by GSA to the local area network.

8.4.4. GSA Meters shall be a solid state advance meters with the following features: non-volatile memory capable of storing 16 parameters for 30 days, using Ethernet port, accuracy meeting ANSI C.12.16, TCP/IP communication, and Modbus IP protocol. The electrical metering shall be Siemens 9350 or Schneider Electric ION 7350 or better advanced electrical meter which is compatible with the Region Eight Win PM software. All electric meters shall be installed with shorting bars to use to short induced current from the current transformers to ground and to facilitate repair and replacement without the need for an outage. Fuses shall be installed in series with the power meter voltage references. 2 amp fuses shall be used in this application.

8.4.5. Meters shall be installed in the main distribution panel (MDP) when possible. Meters shall not be mounted to the transformer housing without prior approval when there is no other reasonable place to mount it.

Background: In order to gather data from the meters we have incorporate the meters into our system. This is done by developing a graphic for each meter and by having the meter data dump into our reports

8.4.6. All electric meters shall be connected to the GSA Region 8 Metering system thru GSA network in accordance with the GSA IT staffs direction. The Denver Federal Center has an existing advanced metering system. This system runs on the GSA Ethernet local area network. GSA will assign an IP address for each meter. The Contractor will have to install the meters and then connect them to the GSA LAN. This must be done in accordance with code. After the meters are installed and connected the Contractor will need to subcontract with Siemens Building Technology to develop the graphics and add the meters to the reports. The following shall be performed when adding the meter:

8.4.6.1. Definition of the meters in the system database.

8.4.6.2. Development of reports including any custom reports which may be required.

8.4.6.3. End to End testing of the new meters.

8.4.6.4. Addition of the meters to the graphics screens in the WinPM software.

8.4.6.5. Addition of all added devices into ALL existing custom reports that are applicable.

8.5. Transformers

8.5.