15_26_30_00_Facility_Electrical_Power_Generating__-_Amendment_0003_0003.pdf

NATIONAL PARK SERVICE

REHABILITATION OF THE EIELSON VISITOR CENTER

DENALI NATIONAL PARK AND PRESERVE, ALASKA

SECTION 12 36 00

COUNTERTOPS

Fullford Electric, Inc. 26 30 00- 1

PART 1 GENERAL

1.1 SCOPE: SECTION 26 30 00 - FACILITY ELECTRICAL POWER GENERATING AND STORING

EQUIPMENT

A. Provide system modifications, equipment, modules, accessories and devices to provide a complete and functional electrical system as shown on the Drawings and further specified herein. All new work shall be compatible with the existing electrical distribution system and any power generating equipment identified as existing to remain.

B. The manufacturer or their authorized distributor shall have an established agency which stocks a full complement of parts within the Alaska or Washington area, and shall offer the services of an Alaskan based technician to provide service on all equipment to be furnished in this project.

1.2 QUALIFICATIONS

A. System Designer

1. The System Designer shall be a professional electrical engineer registered within the State of Alaska.

B. System Installer

1. Installers shall have at least 3 years of experience in the application, installation and testing of the specified system and components.

1.3 REQUIREMENTS

A. This installation shall be made in accordance with the Drawings, Specification, and conform with the applicable requirements of the following:

1. NFPA 70 (2023) - National Electrical Code

2. ICC IFC (2024) Article 1207.

1.4 SUBMITTALS

A. Qualifications

1. System Designer’s State of Alaska engineering seal shall be provided on the system Shop Drawings.

DENALI NATIONAL PARK AND PRESERVE, ALASKA

Fullford Electric, Inc. 26 30 00- 2

2. Submit listing of a minimum of 3 similarly sized projects and systems installed within previous 5 years.

B. Shop Drawings

1. Shop drawings shall include 11x17 drawings that include a one-line riser diagram, interconnect and wiring diagrams, conductor ampacity and voltage calculations in accordance with NFPA 70, and Bill of Materials for major equipment components.

2. Shop drawings shall be sealed by the System Designer.

3. Equipment Enclosures that are required to be UL508a Control Panel are not required to be sealed by the System Designer. Provide schematic diagrams that include the panel layout, list of components and schematic wiring diagram for each panel.

C. Product Data

1. Submit manufacturer’s product data for the system components:

a. Inverters.

b. Charge Controllers.

c. Batteries and battery rack system.

d. Resistive Dump loads and equipment.

D. Warranty Information

1. Submit product warranty information for all submitted product data.

2. Warranty information shall be included in the O&Ms.

E. Installation, Operations and Maintenance (O&M) Manuals

1. O&Ms shall include installation instructions, operations and maintenance manuals for all major system equipment components.

2. Updated as-builts of the shop drawings shall be provided within the O&Ms.

3. All equipment or electronics that can be programmed, regardless of default parameters, shall be listed with the settings provided for the completed and commissioned system. All settings for equipment that can be programmed shall be updated and recorded on the as-built shop drawings adjacent to their respective components within the drawing set. Any programming of equipment that has password protection shall be provided to Owner.

4. Provide contact information of System Installer, company phone number, physical and email address.

DENALI NATIONAL PARK AND PRESERVE, ALASKA

Fullford Electric, Inc. 26 30 00- 3

1.5 SYSTEM DESCRIPTION

A. The existing facilities photovoltaic (PV) arrays shall be removed in their entirety and returned to the Owner. No PV array replacement is intended for the scope of this project.

B. Hydro alternator, inverters and energy storage system shall be replaced with a new system as shown on the Drawings and specified herein. All equipment that is removed or replaced shall be returned to Owner.

C. The system shall be capable of serving an existing 120/240V, 1 phase, 3 wire AC distribution (eg panelboards). Energy generation shall be provided from two sources (LP generator and hydro), with the existing generator utilized in a backup scenario. The hydro system in its entirety is existing to remain and shall be incorporated as shown on the Drawings and specified herein.

D. The system shall include an Energy Storage System (ESS), sized no larger than the existing capacity at roughly 115 kWh. The ESS shall be capable of being charged by all generation sources through inverters, rectifiers or DC charge controllers.

E. The system shall be capable of both converting (AC to DC) and inverting (DC to AC) from the generation sources to charge the ESS and serve the AC distribution system to the facility.

F. Additional new resistive dump loads shall be incorporated into the system where generation is in excess of storage and demand load.

G. The existing photovoltaics shall be removed and not replaced as part of this specification.

The main system, however, must be able to additionally include equipment for a future photovoltaic system. This future third generation source must be able to integrate with the new system and equally provide energy to the ESS and the facility.

1.6 QUALITY ASSURANCE

A. The system including all components shall be listed by a National Recognized Testing Laboratory (NRTL).

B. The work described in this Specification consists of all labor, materials, equipment, and services necessary and required to complete and test the electrical system. Any material not specifically mentioned in this Specification or not shown on Drawings, but required for proper performance and operation as specified shall be furnished and installed.

C. All work should be installed consistent with manufacturer’s recommendations. In the event these recommendations conflict with contract requirements the contractor shall notify the Contracting Officer for instruction prior to commencing work.

DENALI NATIONAL PARK AND PRESERVE, ALASKA

Fullford Electric, Inc. 26 30 00- 4

PART 2 PRODUCTS

2.1 ACCEPTABLE MANUFACTURERS

A. Where the products of a specific manufacturer are listed in this Specification, it is done so to establish configuration, features, and quality level.

2.2 SPARE COMPONENTS

A. Provide the following spare equipment for future maintenance. Where a % based is used and results in a fractional number, round up to nearest whole number.

1. 1x full rectifier or set of diodes (if used).

2. 1x hydro DC charge controller.

3. 1x DC-DC converter.

4. 5% batteries for ESS.

5. Full set of spares of all fuses.

2.3 COMPONENTS

A. Reference drawing U001 for system one-line and individual component listing and descriptions.

PART 3 EXECUTION

3.1 FUNCTIONAL CHECKOUT AND TESTING

A. The entire Electrical System shall be tested for the final substantial completion of the Project.

B. Functional checkout shall include, at a minimum, the following performance verification tests.

1. Minimum continuous 48 hour automatic system operation with hydro generation, and typical facility demand load operation.

2. Automatic generator start/stop upon ESS depth of discharge setpoint. Final setpoints may be adjusted to simulate operation and reduce discharge and charge time.

DENALI NATIONAL PARK AND PRESERVE, ALASKA

Fullford Electric, Inc. 26 30 00- 5

3. Automatic resistive dump load start/stop operation. Final setpoints may be adjusted to simulate start/stop conditions.

C. Functional checkout report shall include, but not limited to, the following:

1. Technicians name, the date of the test, and the company they represent.

2. Provide name and signature of owner’s representative witnessing the functional checkout.

3. A data logger, measuring voltage, current and frequency for A phase , B phase and Neutral at the line side terminals of the MDP shall be utilized during the functional checkout time frame. Measurements shall be stored at minimum 15 minute intervals and provide maximum, minimum and average values of all parameters. Data shall be presented in graphic form, with time on the x axis, and the different parameters on the y axis.

4. Data from the energy management system shall be provided during the functional checkout timeframe. Information shall indicate energy production, stored and utilized by system and the depth of discharge of the energy storage system. Data shall be presented in graphic form, with time on the x axis. Data shall clearly indicate with annotated label where the system is being tested for generator operation and resistive dump loads. Example: graphs shall be able to show that energy utilized is in excess of energy produced and lines up (with respect to time) with decreasing energy storage levels that lead to setpoint reached and generator turns on, leading to increasing energy storage levels.

3.2 TRAINING

A. Contractor shall provided a minimum of 4 hours of training to staff and personnel.

B. Contractor shall provide a minimum of 2 training manuals for staff, that cover the material of the training session. Training manual shall also provide season startup and shutdown sequence of operations.

C. Provide the name, date and list of all attendees of the training to the Contracting Officer.

D. Contractor shall utilize the system’s one-line riser diagram while demonstrating every major component and its functional purpose to the user group. All component isolation switches, disconnect switches and overcurrent protective devices shall be clearly identified and shown to the users with description of typical maintenance best practices for working on the system.

DENALI NATIONAL PARK AND PRESERVE, ALASKA

Fullford Electric, Inc. 26 30 00- 6

E. Contractor shall demonstrate typical operations of the system that include, but not limited to:

1. How to bypass system via the manual transfer switch and directly feed the AC distribution with the temporary generator connection.

2. Operation of sources charging the ESS.

3. Demonstrate resistive dump load operation and requirements. Demonstration may be simulated where ESS is not fully charged and unable to produce excess energy.

4. Demonstrate generator automatic run condition where generator is producing energy to both the AC distribution system and charging the ESS. Demonstration may be simulated where ESS is not at final setting depth of discharge.

5. Demonstrate use of energy management system and how to view current and historical energy data.

6. Season shutdown and startup, disconnect/reconnect and storage, replacement and maintenance of batteries.

3.3 FINAL ACCEPTANCE

A. Final acceptance will require the contractor to deliver to the Contracting Officer the following:

1. Test Reports of the completed system.

2. Copy of the Training and attendee list.

3. Copies of the operating instructions and maintenance manuals.

4. The name and telephone number of person to contact in the event of equipment failure.

END OF SECTION