99146 - JBLM DES MICROGRID CERTIFIED FINAL SPECIFICATIONS BESS.pdf

P2#: 506505 JBLM DES Microgrid JBLM, Washington

SECTION 26 34 00

BATTERY ENERGY STORAGE SYSTEMS (BESS)

08/23

PART 1 GENERAL

1.1 SUMMARY

This Section includes Battery Energy Storage System (BESS) rated over 600kWh and their associated internal components that create the entire system, including inverters, power conversion systems, microgrid interconnect devices, energy storage components, monitoring and control systems, miscellaneous electrical equipment, associated integral HVAC, Fire Protection and Fire Alarm Systems.

Related Sections include the following:

a. Division 26 Section "Apparatus Inspection Testing."

b. Division 26 Section "Coordinated Power System Protection"

c. Division 26 Section on "Metal Clad Switchgear"

d. Division 26 Section "Facility Scale Solar Photovoltaic Systems"

e. Division 26 Section "Three-Phase, Liquid-Filled Pad-Mounted Transformers"

1.2 REFERENCES

The publications listed below form a part of this specification to the extent referenced. The publications are referred to within the text by the basic designation only.

NATIONAL FIRE PROTECTION ASSOCIATION (NFPA)

NFPA 70 (2023) National Electrical Code

NFPA 855 (2023) Standard for the Installation of Stationary Energy Storage Systems

UNDERWRITERS LABORATORIES (UL)

UL 1741 (2010; Reprint Jan 2015) UL Standard for Safety Inverters, Converters, Controllers and Interconnection System Equipment for Use With Distributed Energy Resources

UL 1973 (2022) Standard for Batteries for Use in Stationary Applications and Motive Auxiliary Power Applications

UL 9540 (2023) Energy Storage Systems and Equipment

UL 9540A (2019) Standard for Test Method for Evaluating Thermal Runway Fire Propagation in Battery Energy Storage Systems

SECTION 26 34 00 Page 1

CERTIFIED FINAL SUBMITTAL

1.3 DEFINITIONS

a. BESS: Battery Energy Storage System. Note BESS is a subset of ESS.

All requirements for ESS in this specification apply to BESS.

b. EMS: Energy Management System

c. BESS: Energy Storage System

d. MCS: Microgrid Control System

e. NIST: National Institute of Standards and Technology

f. O&M: Operation and Maintenance

g. PCS: Power Conversion System

1.4 SUBMITTALS

Government approval is required for submittals with a "G" or "S" classification. Submittals not having a "G" or "S" classification are for Contractor Quality Control approval. When used, a code following the "G" classification identifies the office that will review the submittal for the Government. Submit the following in accordance with Section 01 33 00

SUBMITTAL PROCEDURES:

SD-02 Shop Drawings

BESS description, including the following:

BESS Chemistry, Major Component Descriptions and Their Role to Achieve Required Mode of Operation; G, AE

Nameplate Data, Manufacturer, Catalog Numbers, and all Major accessories used in the system; G, AE

System Electrical Characteristics: Usable Energy Storage Capacity; Rate Power; AC Efficiency (Including Auxiliary Loads);

Cycle Life; and Annual Degration Factor; G, AE

Fire Protection/Suppression System and Fire Alarm Description Including Plan for Thermal Runway Detection and Mitigation; G, AE

Ambient Temperature Control System and Environmental Condition Parameters; G, AE

Dimensioned plans, elevations, sections, and details, including required clearances and service space around equipment. Show tabulations of installed devices, equipment features, and ratings.

Include the following:

Site Plan or Floor Plan Showing the BESS Location Including Dimensions, Access, and Auxiliary HVAC Units; G, AE

BESS Cabinet/Container System Dimensions Including Climate Control Units; G, AE

Centerlines for all External Conduit and Grounding Cable

SECTION 26 34 00 Page 2

Connections, and Wall/Floor/Roof Penetrations for Auxiliary Equipment; G, AE

Sections and Elevations with Height of Components/Container from Floor Level to Top of Components/Containers Highest Non-Moveable Point; G, AE

Mounting System; G, AE

System Weight, Including Subtotals by Area; G, AE

Shipping Center of Gravity for each Container and major Equipment;

G, AE

Construction Staging and Storage Areas; G, AE

Owner Requirements for all Control and Auxiliary Equipment; G, AE

Fire Protection and Fire Alarm Systems Layouts; G, AE

Structural Certification: Certification by licensed structural engineer demonstrating ability of a structure to support all loads required for the BESS, including seismic restraint.; G, AE

Electrical studies and schematic diagrams, include the following:

One-line diagram between major BESS components and interconnection to electrical distribution, including identification of DC versus AC-coupling.; G, AE

Control wiring diagrams, with cross reference for checking and verifying all the control circuit and wiring diagrams, along with the terminal designations for termination of the field wiring of all equipment.; G, AE

Communication and Control Diagrams; G, AE

BESS component equipment covered by other specification sections shall comply with submittal requirements of the relevant specification section (i.e.: panelboards, switchboards, HVAC equipment, fire protection, fire alarm, enclosed switches, etc.).;

G, AE

SD-03 Product Data

For Energy Storage System components. Include: Technical data on features, performance, electrical characteristics, ratings, weights, and finishes; rated capacities, operating characteristics, furnished specialties, and accessories; Factory published product specification data sheets; list of materials and components; UL listed data and certifications.; G, AE

Energy Storage System components include but are not limited to:

Energy Storage System Cells, Modules, Units, Stacks, and Balance of System; G, AE

Inverters, Power Conversion Systems, Converters, and Optimizers;

G, AE

SECTION 26 34 00 Page 3

Microgrid Interconnect Devices and Controllers; G, AE

Charge Controllers; G, AE

Energy Management System and Controllers; G, AE

Switchboards, Enclosed Switches, Panelboards, and their Overcurrent Protective Devices; G, AE

Fire Protection and Battery Off-Gassing Detection Devices Fire Alarm System Devices; G, AE

Mounting Equipment Cabinets, Racks, and Containers; G, AE

HVAC System Components; G, AE

Miscellaneous Materials and Equipment; G, AE

SD-06 Test Reports

Factory Test Reports: BESS component tests (BESS modules, racking system, inverters, converters, HVAC, Fire protection and alarm, etc.) and integrated system test. Submit written test reports including test procedures used, final results and compliance with requirements.

Field Tests Reports; G: Submit written test reports, including the following:

Functional Test Procedures Used; G

Final Test Results. Include all test results and demonstrate their comparision to and compliance with requirements; G

Report shall include results of all failed tests and corrective action taken to achieve test results that comply with requirements; G

Commissioning Test Reports; G: Submit written test reports, include the following:

Commissioning test procedures tailored to the storage chemistry and operational performane; G

Final commissioning test results and Commissioning Issues Log described in part three of this specification; G

Commissioning test report shall include results of all failed tests and corrective action taken to achieve test results to comply with requirements; G

SD-07 Certificates

Certificates of Compliance; G: Provide certificates of compliance for referenced standards, reports for referenced testing standards, and hazard migitation analysis reports.

SD-10 Operation and Maintenance Data

SECTION 26 34 00 Page 4

Operation and Maintenance Manuals; G

Include the following BESS Documentation:

BESS equipment and components: Include description of unit or system, recommended maximum depth of discharge (DoD) and degradation rate, and component parts. Give function, normal operating characteristics, and limiting conditions; G

Provide approved engineering submittals. Include equipment sizing calculations; G

Provide manufacturer's installation wiring diagrams and schematic diagrams; G

Operating procedures: Include routine normal operating instructions and sequence of operations. Include regulation, control, stopping, shutdown, system balancing and maintenance (i.e., full discharge and slow charge) and emergency instruction; G

Special or recommended operating procedures to minimize energy storage capacity degradation over time with respect to seasons, depth of charge/discharge, voltage, humidity, etc; G

Maintenance requirements: Include required materials, routine procedures and guide for cleaning, troubleshooting, equipment isolation, lockout, tagout, and BESS adjusting, balancing, and checking instructions; G

BESS Fire Protection Procedures and Instructions for Authorized Personnel and Local Firefighting Personnel; G

SD-11 Closeout Submittals

Record Documents: As specified in Division 01, Section 01 75 05 Closeout Procedures

Final As-Built Drawings and Information

Assembly and Wiring Diagrams

Installation and Operation Information

Training Materials for the Operation and Maintenance (O&M)

1.5 QUALITY ASSURANCE

1.5.1 Qualifications

The manufacturer of the BESS shall be a company specializing in the manufacture of BESS equipment and have at least five years of documented continuous experience with their hardware in commercial applications in the field.

Installation personnel: submit evidence prior to work that persons performing the work herein have manufacturer approved training and qualified experience in BESS installation, and applicable safety procedures, and hold proper licenses where applicable.

SECTION 26 34 00 Page 5

Commissioning personnel: Provide qualifications including experience of certified personnel responsible for BESS startup and commissioning work.

1.5.2 Listing and Labeling

Electrical components, devices, and accessories shall be listed and labeled in accordance with a qualified testing agency and marked for intended location and application.

Certificates of compliance: Provide certificates of compliance for referenced standards.

Applications and installations shall comply with the requirements of the codes and standards listed in this Section. Where required, certified test reports substantiating the compliance shall be submitted upon request.

1.5.3 Support Service Capability

BESS manufacturer shall maintain a call center for technical and emergency support for this system.

BESS manufacturer shall provide authorized field service vendor with factory-trained personnel for startup, maintenance, and repair of BESS and related equipment.

Availability of Service personnel: Manufacturer shall have service organization, with authorized factory-trained service personnel available to provide support remotely 24 hours a day, 7 days a week, 365 days a year, and ability for onsite service.

Availability of Spare Parts: Manufacturers shall have component and system distributorships, with replacement parts available from manufacturer using their regularly available expediting delivery for receipt within five days of request.

1.5.4 Materials

All materials supplied for this project shall be new.

1.6 DELIVERY, STORAGE AND HANDLING

Equipment shall be handled and stored in accordance with manufacturer's instruction, and as required to prevent any damage to system components and electronics. One copy of these instructions shall be included with the equipment at time of shipment.

Prior to and during construction, provide secure storage onsite for all BESS materials.

If stored in areas subjected to weather, cover equipment to provide protection from weather, dirt, dust, corrosive substances, and physical damage.

Where systems are intended for use in classified areas, appropriate considerations shall be taken in the delivery, storage, and handling of the equipment.

SECTION 26 34 00 Page 6

1.7 PROJECT CONDITIONS

Refer to schedule on drawings.

1.8 COORDINATION

Coordinate layout and installation of BESS with other construction, including conduit, piping, equipment, and adjacent obstructions and surfaces. Maintain required clearances for workspace and equipment access.

Coordinate size and locations of anchor-bolt inserts into concrete slabs.

Provide system technical coordination for utility distribution interconnection. Provide grid connection as required, and in location as designated in design.

1.9 WARRANTIES

Provide BESS extended (10) year manufacturer's warranty valid from the date of substantial completion.

Energy storage module(s) warranties: Extended (10) year warranty after the date of substantial completion. Battery pack shall retain at least 80% of nominal energy capacity for the earlier of either (10) years after commissioning or after a minimum energy throughput in kWh equivalent to 3650 full cycles.

1.10 OWNERSHIP OF PROPRIETARY MATERIAL

The US Government shall retain all rights to software and passwords used for this project.

Contractor shall provide a copy of the manufacturer's standard software and end-user license agreement (EULA) for review and approval as condition of this contract. Such license shall grant use of all programs and application software to the US Government as defined by manufacturer's license agreement but shall protect manufacturer's rights to disclosure of Trade Secrets contained within such software. The Contractor shall obtain a signed copy of the manufacturer's software and firmware licensing agreement prior to purchase.

The licensing agreement shall not preclude use of software by individuals under contract to the US Government for commissioning, servicing, or altering system in future. Use of software by individuals under contract to the US Government will be restricted to use on the US Government's computers and only for purpose of commissioning, servicing, or altering installed system.

All project developed software, files and documentation shall become the property of the US Government.

1.11 MAINTENANCE SERVICE

Commencing at the contract's Substantial Completion date, provide 12 months full maintenance by authorized field service vendor with factory-trained certified personnel. Provide system maintenance service with adjusting as required for proper operation based on Original Equipment Manufacturer's (OEM) recommended daily, weekly, monthly, quarterly, semi-annual, and annual maintenance activities. Provide parts

SECTION 26 34 00 Page 7 and supplies same as those used in the manufacture and installation of original equipment. In addition to the initial year of maintenance service, provide a proposal for a five-year period with (5) one-year, annually renewable periods, starting from end of initial maintenance period. The option year proposal shall be submitted 120 days prior to the end of the maintenance contract period.

Maintenance service shall include preventive maintenance, repair, or replacement of worn or defective components, and inspecting/adjusting as required for proper system operation, as well as other specific service identified under this specification section. Specific maintenance tasks shall also align with the manufacturer's recommended checklists. Provide complete maintenance records inclusive of scheduling to the US Government.

The Maintenance Service shall include an annual report to owner verifying that the BESS is performing as intended per the battery storage strategy and manufacturer recommendations. The report shall include:

a. Use case performance

b. Battery outages with root cause summary/failure modes and effects analysis, start and end time periods.

c. Summary of all O&M operations; repair and replacements

d. Summary of all safety incidents, causes and resolutions

e. Contractor shall perform all required maintenance to the BESS and BMS to ensure that the monthly demand reduction is provided.

f. In addition to required demonstration and training in PART 3 of this specification, the Contractor shall provide an additional eight hours O&M training session to the US Government O&M personnel prior to the completion of the initial 12 months of maintenance service. Training shall comply with PART 3 and cover issues and resolution encountered during the initial 12 months of maintenance service by service maintenance staff and US Government O&M.

g. Ensure that all system firmware is up to date and meets US Government cybersecurity requirements.

PART 2 PRODUCTS

2.1 MANUFACTURERS

2.1.1 Acceptable Manufacturers: Subject to Compliance with Requirements

The design drawings include details, equipment dimensions, and space requirements based on multiple acceptable manufacturers. If the Contractor selects a different equipment supplier, some redesign including locations of conduits, terminations, and space clearance may be required.

Additional costs incurred for these changes shall be borne by the Contractor.

2.1.2 Buy American Provisions

a. It is recognized that procuring battery energy storage systems (BESS) with all U.S. made content is currently difficult. Suppliers should endeavor to maximize the percent of U.S. made components, ideally 60%

SECTION 26 34 00 Page 8 of total cost of BESS.

b. Battery cells from the following companies shall not be used: CATL, BYD

2.2 GENERAL REQUIREMENTS

General Requirements:

a. Refer to BESS schedule on electrical drawings for additional requirements.

b. BESS battery modules shall be UL 9540 listed and tested in accordance with UL 9540A.

c. Hazard Mitigation Analysis per NFPA 855 shall be conducted, and report provided for U.S. Government review. The hazard mitigation analysis shall consider the fire and explosive hazards and risks, failure model and effects analysis and identify mitigation strategies implemented including detailed system operation and requirements.

d. Provide Nameplate, mimic bus, arc flash rating, and System drawing to be located on the doors of containers, equipment, or cabinets.

e. Exposed Conduit: All exterior exposed conduits shall be galvanized rigid steel (RMC) with threaded fittings.

f. BESS Output: BESS together with step-up transformer shall match local utility company exactly in voltage, phase, and frequency to allow it to be grid-tied in accordance with local utility company's safety and power quality requirements. Coordinate all requirements with local utility company.

g. The BESS shall contain protective relays, circuit breakers, or fuses which self-protect the BESS in the case of internal electrical faults.

Set and adjust circuit protection devices according to a short circuit and coordination study.

h. A visible disconnect will be installed to isolate the battery modules from the AC power system.

i. Grounding: Contractor shall provide grounding system for personnel protection for step and touch potential complying with IEEE-Std-80.

The system also shall be adequate for the detection and clearing of ground faults within the BESS. The system should be grounded in all anticipated operating modes (e.g., grid-tied, and islanded).

j. The BESS shall be capable of grid forming for microgrid islanding applications, complying with all local utility requirements, and compatible with other power generating sources.

l. Seismic Performance: BESS shall withstand effects of earthquake motions determined according to ASCE/SEI 7.

1. The term "withstand" means "the unit will remain in place without separation of any parts from the device when subjected to the seismic forces specified and the unit will be fully operation after the seismic event."

SECTION 26 34 00 Page 9

2.3 PERFORMANCE REQUIREMENTS

Refer to BESS schedule on electrical drawings for additional performance requirements.

Integrate the BESS with the following power generation systems and existing power distribution system

a. New 150kWp ground-mount Photovoltaic system(s)

b. New natural gas Generators

The BESS shall operate for the following scenario(s):

1. Grid outage: The BESS shall support critical loads in microgrid operation in the event of a grid outage. Refer to sequence of operation on drawings.

Charging from grid during periods of normal utility power.

1. BESS charging during normal mode shall be scheduled and limited so as not to add to site's peak utility demand. Submit proposed charging schedule to owner and O&M staff.

Periodic testing, including black-start testing.

1. The BESS shall be demonstrated to perform on a recurring basis to ensure the Agency's desired site resilience and energy assurance.

This interval testing frequency shall occur approximately every 12 months following final acceptance to ensure provision of power to the site in the event of a utility-provided power outage or interruption. This activity requires pre-coordination with the local servicing utility in accordance with the approved interconnection agreement, and that coordination shall be led by the Contractor in consultation with the DPW and/or maintaining contractor.

2. This periodic demonstration shall stagger months, seasons, load, time of day, and weather variabilities, but shall be conducted at least every 12 months.

3. In the event of an actual utility power interruption exceeding 3 hours duration where the BESS performed as designe, the BESS's performance will satisfy this requested demonstration, thereby resetting the interval to 12 months prior to the next required demonstration.

4. Any deficiencies or anomalies beyond expected design parameters, in an actual event or demonstration event, are to be reported to the Agency within 24 hours in writing, with recommended remediation or corrective steps to prevent recurrence.

2.4 ENERGY STORAGE COMPONENTS

Energy storage components shall consist of lithium-iron phosphate (LFP) batteries BESS technology.

Energy storage systems may be individual cells, and supplied as modules comprised of cells, or as group of modules combined into units. Several

SECTION 26 34 00 Page 10 units may be combined to make up the full installation. Cells, modules, and units shall be fully enclosed in listed assembly for the intended purpose. Individual battery trays and/or racks shall not be permitted.

Energy storage systems comprised of battery systems shall be UL 1973 listed for the intended use.

A battery management system shall monitor and balance cell voltages, currents, and temperatures within the manufacturer's specification. The battery management system shall be part of the BESS component UL listing.

The BMS shall perform the charging and discharging of the equipment. The BMS shall be field programmable via laptop and viewing/editing on a locally hosted web browser. Programming instructions and setpoints shall be shared with DPW and/or maintaining contractor.

The cells, modules, units, and installation shall be supplied with all required and/or manufacturer recommended accessories.

BESS DC voltage shall not exceed 1500Vdc.

The use of vented batteries shall not be permitted.

2.5 POWER CONVERSION SYSTEMS

Power Conversion Systems (PCS) shall be UL 1741 or UL 1741SA listed for the intended use.

PCS output shall match local utility company frequency when grid tied to local utility or in combination with generator operation and microgrid control system where applicable.

PCS output connections and operation shall comply with all local utility company requirements.

PCS shall have the following electrical characteristics:

a. Efficiency: minimum 95 percent.

b. Frequency: 60 Hz

c. AC Voltage range: as required to meet required power output.

d. DC Voltage range: matching energy storage DC voltage

e. THD: < 3%

f. Power factor: -1 to +1

The PCS shall have the following features to operate in the required performance scenario(s)

a. Perform grid-tie and grid-forming operation with "black start" capability and rapid transfer.

b. Bi-directional charge and discharge of the BESS with intelligent controls and interface with battery management system.

c. Complete automatic unattended operation including startup, synchronization, power disconnect, and parallel operation with the

SECTION 26 34 00 Page 11 utility and generators. The system shall also operate in parallel with: photovoltaic system.

d. Shutting down without damage when BESS output is outside tolerance parameters of inverter.

e. Automatic anti-islanding (unless commanded to do so) in conformance with referenced standards.

2.6 HEATING VENTILATION AND AIR CONDITIONING (HVAC)

The BESS shall include a completely integrated HVAC system designed to always maintain component temperatures including heating, cooling, and relative humidity. Thermal conditioning systems shall maintain ambient temperatures and humidity within warranty requirements and manufacturer recommendations.

2.7 ENCLOSURE

The BESS and associated equipment shall be in a factory assembled climate-controlled enclosure that is rated for the site conditions.

The BESS, and associated equipment, shall be provided in self-contained NEMA 3R enclosure(s) rated for the site conditions. BESS enclosures shall be designed to be installed onto properly prepared pads/foundations and provided with corrosion protection where required.

Provide factory applied custom-color finish. Color shall be Sherwin Williams 7048 (Urbane Bronze) or equivalent color by another manufacturer, and shall be approved by JBLM prior to painting.

Each door to battery container must be equipped with locks and kept locked. Provision for emergency access for fire and security purposes in accordance with installation guidance is required. A minimum of two separate doors must be provided. The doors must be spaced a minimum distance apart equal to the long dimension of the structure, or a minimum of 75% of the diagonal distance apart, whichever is greater. Door swing must be in the direction of egress travel.

Provide general ventilation and explosion/deflagration venting for battery enclosures.

All sides of the battery container and the doors to the structure must be provided with ANSI compliant signs indicating; “DANGER – In Emergency Call XXX-XXXXXXX Before Any Entry”, where XXX-XXX-XXXX is the lithium energy storage system operator 24-hour emergency response center; “WARNING – LITHIUM Battery Energy Storage System”; and “DANGER – High Voltage”

BESS components and associated ancillary equipment shall have working space clearances complying with manufacturer's recommendations.

Energy storage modules or units shall be rack mounted or installed in cabinets, per manufacturer recommendations inside factory enclosure or container. Each module or unit shall be arranged to maintain required spacing and materials complying with UL-9540A testing recommendations.

Front access: All serviceable subassemblies shall be modular and capable of being replaced from the front of the cabinet. Side access for installation, service, repair, or maintenance of the system shall not be

SECTION 26 34 00 Page 12 required.

Cable entry: standard cable entry for the BESS shall be through the enclosure bottom.

Lighting:Provide surface mounted interior LED lighting fixtures. The interior lighting system must provide a minimum light level of 300 lux with a 3:1 average to minimum ratio at the floor. Provide toggle switch type control at each entry door to the switchgear house.

Provide UL 924, NFPA 101, and NFPA 70 compliant emergency lighting.

Provide battery backup type emergency lighting units at each entry door.

The emergency lighting. Emergency lighting shall provide an average of one foot-candle and no less than 0.1 foot-candle at any point along the path of egress for a minimum of 90 minutes. Provide normal lighting and exit-emergency combo units lighting on the same branch circuit. Wire exit-emergency combo units ahead of the local switch within the same area.

Provide wall pack LED luminaires that are suitable for outdoor applications in accordance with Section 26 56 00 EXTERIOR LIGHTING. Mount wall pack LED luminaires exterior of the switchgear house and above personnel exit doors. Wall packs must utilize LED sources. Wall packs must be constructed of rugged, weather resistant, die cast aluminum housing with an integral photocell. Control for exterior lighting must be in accordance with ASHRAE 90.1 - IP.

2.8 DATA ACQUISITION AND CONTROL

The BESS shall include a monitoring and data acquisition system and shall include, at a minimum, the following information in 15-minute intervals (unless otherwise noted):

a. Real-time BESS State of charge

b. System mode (charge, discharge, island, grid-tied etc.) and condition (normal, auto, manual, override, etc.)

c. System voltages, current, and power

d. Enclosure Ambient temperature, hourly average at hourly intervals.

e. Energy and time remaining at current discharge or charge rate

f. Time until full charge at current recharge rate

g. Forecasted charge and discharge profile

h. Round-trip efficiency on daily, weekly, monthly, yearly basis

i. System fire protection and alarm condition

j. Notification when preventative maintenance is neeeded

k. System alarm and events:

1. Major: system automatically disconnected due to over/under voltage, overcurrent or over temperature.

2. Minor: voltage imbalance, voltage sensing error, under-temperature, temperature imbalance, overprotection device

SECTION 26 34 00 Page 13 activation, communication failure, regular maintenance required (i.e., perform balancing charge sequence)

Data shall be saved locally for a minimum of (90) days and backed up off-site with a minimum of (36) months of data.

Data transmission shall be transferred to off-site storage via one of the following connections:

a. Microgrid control system data connection

No system or device shall require internet connection to function

Local display and control:

a. Local display shall provide listed data monitoring in this specification.

b. Local control panel via interface or dedicated server shall allow for local control and adjustments of setpoints and threshold values.

c. Local display may be visible without password protection. Local control shall be password and user protected.

d. Local display shall have touch screen interface.

2.9 FIRE PROTECTION, FIRE ALARM, AND BATTERY OFF-GASSING DETECTION SYSTEMS

The BESS shall include an integrated fire alarm system in accordance with UL 9540A test report and hazard mitigation analysis.

The system shall communicate with the compound Fire Alarm System, and provide an alarm to the privatized utility's SCADA system.

Provide visual and audible alarm when a safety hazard exists.

In addition to fire alarm system, provide additional, off-gas detection and monitoring system to detect the presence of electrolyte gases from individual cell venting and reduce the chance of thermal runway. This system shall shutdown affected rack upon detection and shall send alarm via the fire alarm system and microgrid controller.

2.10 SOURCE QUALITY CONTROL

Factory end of the line tests before shipment:

a. Factory test BESS with PCS and other system components and accessories manufactured specifically for this Project. Perform tests at rated power and for modes of operations in this specification.

b. All test results shall be documented including failed tests.

c. Re-test all failed tests until successful test is achieved.

PART 3 EXECUTION

3.1 EXAMINATION

Before BESS installation, examine roughing-in for concrete equipment

SECTION 26 34 00 Page 14 bases, anchor-bolt sizes, and locations, and electrical to verify actual locations, sizes and other conditions affecting performance, maintenance, and operations.

Final BESS locations indicated on Drawings are approximate. Determine exact locations before roughing-in for electrical connections.

Provide required clearances and clear installation area of flammable vegetation. Maintain adequate setback to other structures, vegetation, and other flammable materials.

Proceed with installation only after unsatisfactory conditions have been corrected.

3.2 INSTALLATION

The BESS shall be provided with foundations and structures that are designed by or under the supervision of a qualified registered engineer.

All design shall be in accordance with local project area seismic design requirements and as specified in the specifications for this project.

Install equipment in accordance with manufacturer's installation instructions and recommendations.

BESS shall be located within a thermally conditioned enclosure.

3.3 CONNECTIONS

Ground equipment in accordance with drawings and specifications.

Connect wiring according to in accordance with drawings and specifications and manufacturer's instructions.

Tighten bus joints, electrical connectors, and terminals according to manufacturer's published torque-tightening values. If manufacturer's torque values are not indicated, use those specified in UL 486A and UL 486B.

Make a permanent mark on all joints, connectors, and terminals after they have been torqued to the proper value.

3.4 IDENTIFICATION

BESS signs shall be clearly printed in English and in local language.

Identify components according to Division 26 Specifications and include the following:

a. BESS electrical equipment and components shall have clearly/visible markings that identify the manufacturer, size, type, rated input and output voltages, hazard warnings, frequency, number of phases (AC only), rating in kW or kVA, available fault current at BESS output terminals, maximum output and input current at terminals, maximum output and input voltage at terminals, and utility interactive capability.

b. Posted single line drawing (SLD), mimic bus, and instructions for tasks that site staff may need to perform, such as system shutdown during an emergency.

c. Clearly label all disconnects, indicating whether in the open (OFF) or

SECTION 26 34 00 Page 15 closed (ON) position, the operating system voltage, available fault current, current, and system rating.

d. BESS disconnecting means shall indicate whether ON or OFF and be marked "ENERGY STORAGE SYSTEM DISCONNECT." Disconnecting means shall also be clearly marked to indicate: (1) Nominal BESS voltage, (2) Available fault current, (3) Arc-flash label, (4) Date calculation performed.

e. Arc flash labels, per NFPA 70E

f. Identification and location of each power source on a permanent plaque or directory. The plaque or directory shall indicate the location of each power source disconnecting means and be grouped with other plaques or directories for other power sources.

Equipment markings shall be permanent and shall withstand the environmental conditions in which the equipment is installed. Provide "UV rated" for outdoor labels, or on an embossed steel placard, designed for outdoor use and fastened with adhesive and rivets.

Markings shall be visible or easily accessible during and after installation. The Contractor shall be responsible for all field-applied markings as required by local, state, and federal codes.

3.5 FIELD QUALITY CONTROL AND STARTUP

Provide the services of a qualified and certified factory-trained manufacturer's representative for startup of the equipment specified under this section. The manufacturer's representative shall provide technical assistance to the contractor in general installation of the equipment, connections and adjustments, and testing of the assembly and components contained therein.

The manufacturer's representative shall provide inspection of the final installation, perform functional testing, and startup the BESS and participate in total system commissioning.

Startup acceptance test shall be witnessed by the US Government representative. Provide notification to Project Manager/KOR within 30 calendar days of scheduled test. Contractor shall be prepared at any time during this process to provide access to all portions of installation and shall remedy any portion of system that is not in compliance with this specification, which does not perform to manufacturer's operating specifications, or that fails to operate due to poor workmanship.

Ensure there is written permission from local utility company for interconnection of the BESS with the utility grid. Local utility company may require that representative of the local utility be onsite during initial interconnection; Contractor shall accommodate this requirement, if stated by utility.

Functional Testing shall include the following, in addition to all tests required by manufacturer:

a. Pre-startup inspection of the BESS System.

b. Test in accordance with the approved operating scenarios

SECTION 26 34 00 Page 16

c. Verify and test system alarms.

d. Test BESS with all power generating sources and loads as applicable.

Provide photo record of installation and major components, including BESS, MCS, and all display screens. Include photos showing connections within all installed enclosures. Provide electronic copies of photo record on compact disc and hard copy of the photo record (with labels for each photo) in Operation and Maintenance Manual identified in Article on

SUBMITTALS.

3.6 COMMISSIONING

Third Party Commissioning Agent: Engage electrically qualified and factory approved third-party certified commissioning agent to inspect, field test, and document performance of components and equipment after installation.

Commissioning agent shall prepare written test results in report.

All test instruments shall be identified in Report and listed by manufacturer, model number, serial number, date of calibration, and calibration authority. All test instruments shall have been calibrated within past year. Test instruments shall have attached calibration sticker that is traceable to NIST.

Contractor shall obtain written commissioning procedures document.

Procedure entries shall include date; time; person taking data; recorded value of data; indication if recorded value is out of range of system and/or equipment tolerance. Each page of the procedures shall have test name; equipment tested; location; date; time; person performing test;

model number of equipment; serial number of equipment; manufacturer;

tolerance ranges of equipment tested for reference.

Commissioning Agent shall keep Commissioning Issues Log and include it as appendix to Report. Log shall include, but not be limited to issue description; log tracking number; date; time; person investing issue;

action taken; person acting; date of closure of issue. Include copy of Commissioning Issues Log in written procedures to Contractor.

Perform the following field tests and inspections, in addition to manufacturer recommended tests and inspections, as follows for test report:

a. Test insulation resistance and continuity for each DC circuits, AC feeders, grounding including ground fault protection, and control circuits. Disconnect all sensitive electronic equipment prior to testing. Visually and physically inspect all cabling, connections, and conduits. Verify color coding of conductors. Verify proper torque of termination connections with calibrated torque wrench.

b. Test ground fault protection of BESS (where required).

c. State of Health verification via coulomb counting.

d. Test proper operation of BESS for all operating scenarios. Set output voltage, as necessary. Verify that all local utility notifications and requirements have been incorporated.

e. Verify operation of all disconnect switches and proper sizing of all overcurrent protection devices (OCPD) in accordance with specifications.

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f. Verify that displays accurately represent output of BESS>

g. Power feedback controller: Monitor the utility power factor with the BESS functioning and with it disconnected. Identify the observed power factor. Verify the system modulates this power factor to not adversely affect utility billing.

h. Verify that data logging access has been established and is functioning. Provide all necessary data, IP addresses, login-ins, and passwords to government.

Contractor shall remove and replace malfunctioning equipment. Retest BESS system as specified above.

3.7 DEMONSTRATING AND TRAINING

Comply with specifications for general requirements of demonstration and training documentation.

The manufacturer's representative shall provide 'hands-on' training course for the US Government O&M personnel.

a. Schedule as follows:

1. Two, four- hour training sessions equally divided into in-class training and in the field training, for a total of8 hours.

2. Training shall be completed within two calendar weeks.

b. Training shall cover the following topics:

1. Overall system description and theory of operation.

2. Local displays and control interfaces.

3. Operating scenarios.

4. Automatic operation.

5. Manual operation.

6. Protective relaying.

7. Recommended system checklists and log sheets.

8. Recommended preventative maintenance and instructions to be performed by qualified staff.

9. Instruction on the operation of the assembly, and major components within the assembly.

10. Instruction on operation or maintenance that must be completed by factory authorized representative to maintain warranty and proper operation.

11. Fire protection and fire alarm system operation and procedures for the safe operation and actions during fire event or alarm.

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12. Interactions with other systems.

13. Overview of relevant storage chemistry, internal thermal management system, and required ambient housing conditions to maintain required operating temperature range.

14. Identification of emergency disconnects.

15. Fire suppression system maintenance - pump and distribution system maintenance for dry standpipe systems.

16. Instruction on balancing cycle and state of charge tests to gauge state of health

17. Hazards and failure modes, including thermal runaway, off gassing, and stranded energy.

18. Mitigation / response measures for electrolyte releases, overheated batteries and fires.

19. Instruction in liquid-cooled system maintenance, including pump and coolant inspection, leak detection, visual inspection, and verification of pressure and gauge accuracy.

20. Power conversion system inspection and calibration.

The Contractor and Manufacturer's representative shall coordinate with local fire marshals on BESS setback requirements, first responder training, and posted instructions for shutoffs:

a. The Contractor shall provide training to local firefighters covering BESS operation and how to shut it down in an emergency event and form a fire suppression plan. Training shall cover the main risks of storage systems, including electric shock, thermal runaway, battery reignition, and stranded energy. Training shall include fire suppression tactics, including minimum water and time requirements, thermal imaging camera, vehicle tilt / lift, and battery box piercing, as well as extrication and transport.

b. The Contractor shall coordinate with the fire marshal to determine where to post the permanent instructions and required markings.

-- End of Section --

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