ITB 27-VSW-KMO-003 Amendment 2.pdf

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ITB 27-VSW-KMO-003 Manokotak Backup Generators Replacement
Solicitation number
ITB 27-VSW-KMO-003 Manokotak Backup Generators Replacement
Issued by
Alaska

About this file

This is Amendment 2 to an Invitation to Bid issued by the State of Alaska Department of Environmental Conservation, Village Safe Water Program, for the replacement of backup generators in Manokotak. The amendment addresses vendor questions regarding three critical specification areas: UL 2200 compliance requirements, existing fuel piping and connections, and generator electrical conductors. The department clarifies that generators must be UL 2200 compliant and capable of continuous full-power operation with compliance reflected on the generator label, though alternator temperature-rise performance need only comply with UL 2200 standards rather than requiring standalone UL 2200 certification. For fuel systems, vendors must provide approved flexible fuel lines connecting the engine to the existing building fuel manifold, with the engine requiring a skid-mounted fuel manifold equipped with bulkhead fittings for supply and return lines. Regarding electrical conductors, existing connections may be reused if adequate, but if replacement is necessary, new XHHW-2 cable must be used matching existing conductor sizes, with the installation comprising four conductors plus an equipment grounding conductor for both three-phase generators.

The amendment provides essential technical guidance to bidders ahead of the July 31, 2026 bid deadline at 2:00 PM AST, superseding the original July 24, 2026 deadline. This clarification document establishes mandatory compliance standards while addressing potential cost and lead-time concerns raised by vendors, ensuring that all submitted bids meet the department's technical and safety requirements for the two backup generator replacements—a 12 kW unit in Old Village and a 30 kW unit in Manokotak Heights. Vendors must register in writing with Procurement Specialist John McDonald at john.mcdonald@alaska.gov to receive this amendment and any subsequent modifications to the solicitation.

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Text version

State of Alaska Department of Environmental Conservation

Village Safe Water Program 555 Cordova Street

Anchorage, AK 99501 John.mcdonald@alaska.gov

July 27, 2026

To: Vendor List

Re: Amendment 2

ITB 27-VSW-KMO-003

Manokotak Backup Generators Replacement ITB Due Date: July 31, 2026 @ 2:00 PM AST

The following are vendor questions and the department’s response:

1. Vendor: UL 2200 Compliance.

The specifications require the generators to comply with UL 2200. This certification may add cost and potentially extend equipment lead times. Given the limited size and scope of this project, please confirm whether UL 2200 compliance is mandatory. Would a generator that meets the specified performance and applicable code requirements, bit is not UL 2200 listed, be acceptable?

Department: There are two references to UL 2200 in the specification.

Specifications Section 2.02 E.3 for both generators states: “List and label engine generator assembly as complying with UL 2200.” This means the generator must be able to operate at its full rated power output continuously without overheating and must carry a UL 2200 compliance label.

Specifications Section 2.04 C for both generators states: “Temperature Rise: Comply with UL 2200.” This section refers specifically to the alternator and requires that its temperature-rise performance comply with UL 2200. It does not state that the alternator must be UL 2200 certified as a standalone component.

We are requiring that the generator be capable of continuous full-power operation, and that this UL 2200 compliance be reflected on the generator’s label.

2. Vendor: Existing Fuel Piping and Connections.

Please confirm whether the intent is to reuse all existing fuel piping and associated connections at both generator locations. Is any replacement or modification of the existing piping, hoses, fittings, regulators, shutoff valves, or other fuel system components anticipated? Please identify all components known or expected to require replacement.

Department: Specifications Section 2.03 B.3 for both generators states:

“Provide suitable, approved flexible fuel lines for coupling engine to existing building fuel manifold. Engine should have skid-mounted fuel manifold with bulkhead fittings for supply and return fuel lines.”

This section requires that approved flexible fuel lines be provided to connect the engine to the building’s existing fuel manifold. It also specifies that the engine must have a skid-mounted fuel manifold equipped with bulkhead fittings for both the supply and return fuel lines.

3. Vendor: Generator Conductors.

Please provide the required conductor sizes for both the Old Village generator and the Housing Heights generator, including phase, neutral, and equipment-grounding conductors. Please also specify the required conductor insulation or cable type, such as XHHW-2, THHN/THWN-2, or Extra-Flex 150F. Unless otherwise directed, we will assume the existing generator conductors are to be replaced.

Department: Specification Section 3.01 J for both generators states:

“Reuse existing electrical connection to generator or supply new if conductors are too short.

Do not splice cable.”

If new cable is required, then use XHHW-2. Both generators are 3-phase with a neutral, so four conductors plus an equipment grounding conductor (EGC) are required. The new conductors must match the existing conductor size.

John McDonald

Procurement Specialist

File details come from the government source that posted it. Updated .