Tab 1 - SOW Grand Forks Generator Replacement.pdf

National Weather Service (NWS) Weather Forecast Office (WFO)

Grand Forks, ND (FGF)

Statement of Work

Removal and Replacement of Emergency Power Generator

Dated: July 30, 2020

1.0 SCOPE. This Statement of Work (SOW) defines the turn-key effort required for the removal and replacement of the emergency power generator (EPG) located at the NWS WFO in Grand Forks, ND.

1.1 Background. The NWS WFO FGF has a mechanically failing 175 kW emergency power generator that requires replaced. It is considered oversized to handle the current electrical demands from this building. Recently, the NWS analyzed the building’s load and calculated that the building’s electrical demand was 154.02 kVA, which includes a 25% total demand contingency. Moreover, the WFO’s utility bills for the last 12 months were reviewed and the max kW demand was only 65,720 kWh – confirming that a single 115-130 kW EPG, with a diesel engine, can handle the full building electrical load.

2.0 REQUIREMENT

2.1 EPG. The Contractor shall supply a diesel driven 115 – 130 KW 480 volt 3-phase generator with battery charging/maintainer.

2.2 EPG Standards. The minimum EPG standards are as follows:

a) Diesel driven.

b) Automatic load bank to insure 80% load is maintained.

c) Coolant and oil pan heaters.

d) Transfer switch appropriately sized for the generator, with a manual test control.

e) 25 gallon day tank with controller and pump.

f) Remote annunciator panel that is capable of monitoring generator and day tank status.

This may be commercial power connected or on generator.

g) Supply maintenance and repair and parts manuals for the generator, engine and transfer switch.

h) Delivery shall be freight on board destination.

2.3 EPG Removal and Replacement Tasks. The Contractor shall provide all parts, labor, and necessary permits/certifications to remove and replace the current EPG. The minimum tasks required are as follows:

a) Remove and reuse existing louvers and actuators during removal and installation of the generator into the building.

b) Remove and dispose of the existing 175 kW EPG.

c) Install new generator.

d) Install day tank and ensure proper operation.

e) Install transfer switch - ensure proper operation set exerciser to run once a month for one hour.

f) Remove existing annunciator panel and install the remote annunciator panel.

g) Preform initial start-up tests for the generator. Provide training of the operation to personnel. Supply service manuals and parts manuals for the generator, engine and transfer switch.

h) Provide software updates for generator and transfer switch during valid warranty coverage. Supply software for NWS personnel for diagnostics, maintenance/repair of the generator and transfer switch, if the generator and transfer switch are not field serviceable.

i) Ensure all equipment is properly grounded in accordance with all applicable standards.

j) Remove and dispose of existing Convalt 1000-gallon diesel storage tank and associated piping (recover all diesel fuel to ensure no spillage) clean and polish fuel for reuse.

k) Install 1000 gallon double wall steel tank with tank level gauge (tank will be equipped with a drain) with a secondary containment system in compliance with all current codes.

Provide necessary permits and certifications.

l) Remove existing tank level monitoring system and install a new tank level monitoring system with both an audible and visual alarm. That monitors, over fill above 90% full, leakage of fuel to second wall of tank.

m) Install an AXI FPS-SX-F or equivalent fuel polishing system. Minimum standards are:

- 2.5 gpm/150gph.

- 1/3hp single phase

- 110v 60 Hz electric motor continuous duty thermally protected gear pump.

- Supply and connect a 110 volt electrical circuit for the fuel polishing system from existing power panel.

End of SOW