Totson_Mt__Power_System_Specifications_DRAFT_FY24.docx

BLM - Alaska Fire Service Totson Mountain Power System Upgrade AFS Facilities at Totson Mountain, Alaska Specifications

1.0 Diesel Generator

Successful bidder will provide one (1) ea Northern Lights NL673L4E 6kW Generator or similar. Generator will be installed with an adjustable delay on start-up for load control and generator warm-up period. Generator will meet or exceed the following specifications:

· Continuous Rated Output of 6kW at 1800 RPM

· Output in 120V AC or 240V AC Split-Phase

· Designed for continuous operation

· Voltage Regulation +/- 5% maximum

· 3-Cylinder Diesel Engine

· 9.9 Horsepower or greater at 1800 RPM

· Fuel Consumption at Full Load of 0.6 gph or less

· Fuel Consumption at Half Load of 0.33 gph or less

· Liquid-Cooled with radiator and cooling fan

· Electronic Fuel System

· Meets or Exceed US EPA Tier IV Emissions Requirements

· Safety Shut-Down System for low oil pressure or high coolant temperature

· Direct-Coupled, 4-Pole, revolving field, 4-lead reconnectable generator

· Heat-Rise Rating of 95C

· Equipped with Auto-Start Controller

2.0 Fuel Spill Containment

Successful bidder will provide parts and labor for appropriate fuel spill containment around the existing fuel tank and new generator, as well as new, armored fuel line system between the tank and the generator. Fuel spill containment will meet or exceed the following specifications:

· Armored fuel line appropriate to withstand accidental damage from personnel as well as potential bear damage.

· “Bathtub” style containment tub underneath new Northern Lights generator.

· ‘PIG’ brand or similar containment tub and cover for existing 300-gallon GREER outdoor steel fuel tank.

3.0 Charger/Inverter

Successful bidder will provide one (1) ea Schneider Electric SW4024 Inverter/Charger or similar, meeting or exceeding the following specifications:

· 24V DC to 120V/240V AC Inverter

· Inverter Output Power Continuous rating of 3400 W or greater

· Inverter Output Power 5 Second Rating of 7000 W or greater

· True Sine Wave Inverter

· Inverter Efficiency <91%

· 120V AC to 24V DC Charger

· 140-Amp or greater Battery Charger

· 7.2 kW or greater pass-through power from Generator to AC Distribution Panel

· Charge Temperature Compensation

· Charger Efficiency <89%

· Dead Battery Charge

· System and Remote Monitoring Function

· Generator Auto-Start control system able to start generator automatically based upon low battery voltage or manually via the LAN. Adjustable delay on start for load control and generator warm-up period.

· Programmable contacts for Low-Voltage Disconnect Relay

4.0 Solar Controller

Successful bidder will provide one (1) ea Schneider Electric MPPT 60 150 Solar Charge Controller or similar, meeting or exceeding the following specifications:

· Compatible with 24V DC Battery Bank

· Maximum input voltage of 140V DC or greater

· Maximum Output Power of 3.5 kW or greater

· Ambient Storage temperature of -40C or colder

· UL Listed

· System and Remote Monitoring Function

5.0 Guy Wires for Solar Panel

Successful bidder will provide two steel cables (wire rope) of appropriate length, two stainless steel turnbuckles for tensioning, and all necessary hardware to attach the guy line from each end of the existing solar panel assembly to existing concrete footings on the ground. Bidder will determine appropriate gauge of wire rope to handle expected wind loading at site.

6.0 Solar Array

Successful bidder will provide ten (10) ea Bifacial/Split cell solar modules. Panels will meet or exceed the following specifications:

· Bifacial/Split Cell

· Monocrystalline Silicon

· 360 Watt rated front output or greater

· 450 Watt rated peak bifacial output or greater

· MC4 Quick-Connect terminations

· 30-year warranty

7.0 Solar Panel Junction Boxes and Wiring

Successful bidder will replace all Photovoltaic Solar Panel Junction Boxes and shall install new arctic-grade wiring of an appropriate gauge with MC4 Quick-Connect terminations to replace all existing wiring between the panels and the charge controllers inside the shelter.

8.0 Circuit Breaker and Generator Wiring

Successful bidder will provide wiring between the generator, inverter/charge controller, junction box, and battery banks meeting or exceeding the following specifications:

· Arctic Ultraflex Stranded Wire or similar in 4/0 Guage

Successful bidder will provide wiring between inverter/charge controller and AC distribution panel.

9.0 Generator Fuel Line Protection and Spill Containment

Successful bidder will provide materials necessary to install new armored fuel line, fuel-spill containment below the generator, and an outdoor containment tub and cover for existing 300-gallon tank.

10.0 Battery Straps

Successful bidder will provide battery straps sufficient to connect 40ea 100 Amp-Hour 12V Batteries into a 24V DC battery bank. Battery Straps will be sized to handle maximum expected load per NEC code requirements (minimum 2 Guage).

11.0 Low Voltage Disconnect Relay

Successful bidder will provide materials necessary to install a Low Voltage Disconnect Relay to disconnect Radio Shelter loads from the battery banks when battery bank voltage falls below a set point. Relay will meet or exceed the following specifications:

· Solid State Relay (SSR)

· Rated for at least 100 amps of load at 24vdc

· Rated for an operating temperature range of at least -40 to 100 degrees Celsius

· Maximum input current of 20mA for on-state.

· Triggered from power control system

12.0 Power System Monitoring and Remote Control

Successful bidder will provide materials necessary to assemble a remote monitoring system for the Totson Power System. System will meet or exceed the following specifications:

· Armored Ethernet Cables (CAT5E or better) installed in conduit between the Radio Shelter and the Generator Shelter to link monitoring system with network

· Real-time monitoring capability

· Data logging of solar, batteries, generator, and load

· Remote control of settings and settings adjustments

· Ability to manually remote-start generator

· Remote monitoring system may be accessed via LAN

13.0 Wiring and Miscellaneous Hardware

Successful bidder will provide any parts required to install and configure the above listed physical deliverables. Stranded Arctic Ultraflex or similar wire rated to -40C or below will be used for all DC power connections. AC power connections may be solid-core as appropriate. Any wiring or circuit protection that is not in NEC compliance shall be upgraded or repaired to ensure safe operation.