MHEES_RFP_Additional_Q As_-_Amendment__0003.pdf

Purchase

Description

3.2.2, 3.2.3, 3.5.2, 3.5.3

The output of the system is 5KW sustained, 10KW for ten minutes. The system has two

CRITICAL outputs: a 208VAC

60Hz 3-phase, and a 103-132

VAC 60Hz single phase. How is the 5KW/10KW power to be distributed between the two outputs? Will each of these outputs be required to provide the full 10KW for 10 minutes?

Question #1 of first set of questions should provide clarity for this question.

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Description 3.5.4

"It is desired that the MHEES provide 216-250V AC (50Hz) output on the system." Is this a single phase, or something else?

Single phase.

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Description 3.2.3

How often are the 10kW surges expected? Is this a once a day event or would it be possible for it to happen multiple times in an hour?

The system should provide the best value trade-off with the maximum flexibility possible in the 10kW to

5kW power range. A detailed duty cycle will not be provided.

Purchase

Description

1.2, 3.2.9, 3.2.11, The 2kW MTG is only listed in the current configuration section.

Should it be considered as a definite input to the MHEES system?

No. MHEES is not required to interface with a 2kW MTG. See previous answers. It is a CPP to use the generators called out in 3.2.9. The ability to also use a 2kW MTG can be proposed as value added.

5 General Issue

Is it required or desired that the output of MHEES share loads with other systems? If so, please identify those systems.

Offerors are allowed to propose what they consider to be value added to their proposal for consideration.

6 General Issue

Is it required or desired that the output of MHEES share loads with other MHEES?

Offerors are allowed to propose what they consider to be value added to their proposal for consideration.

Purchase

Description 3.2.2

Since the 5kW output is an average, what can be expected as a range of output power over a typical day or week?

The system should provide the best value trade-off with the maximum flexibility possible in the 10kW to

5kW power range. A detailed duty cycle will not be provided.

Purchase

Description 3.2.3

How often is expected the 10wk peaks to occur? How close can they occur in time? When can they occur with regard to time of day?

The system should provide the best value trade-off with the maximum flexibility possible in the 10kW to

5kW power range. A detailed duty cycle will not be provided.

Purchase

Description 3.2.2

5kW average output is specified.

Can any further detail be given to the load profile? Does the

The system should provide the best value trade-off with the maximum flexibility possible in the 10kW to profile change at night? 5kW power range. A detailed duty cycle will not be provided.

Components supplied

(controllers, chargers, inverters, etc. supplied) with each ISPCA

Connections hardware supplied: cable types and connector terminations used.

Detailed set-up and use instructions or operator manual.

Description 3.5.1

Please provide specific requirements for the power distribution kit. Voltage and current requirements, number of receptacles, lighting required, etc. Will electric heat and/or A/C units be powered? Will we be required to supply these units?

The power distribution kit should be capable to distribute 120V AC (60 Hz) power within a 12‟ x 20‟ soft shelter.

The number of outlets/receptacles, etc.

is dependent on proposed design.

Offerors are allowed to propose what they consider to be value added to their proposal for consideration.

Purchase

Description 3.2.1

“All MHEES electrical components shall be sized for a minimum of 10kW rated electrical output in accordance with MIL-STD-

1332 if enough electrical input is available. THIS IS

A CRITICAL

PERFORMANCE

PARAMETER.”

Are both DC and AC circuits part of this critical performance parameter?

No. 3.2.1 addresses AC output requirements. Requirement 3.5.6 provides the DC output requirement.

Description 3.2.2

“3.2.2 The MHEES shall be able to sustain an average electrical output of 5 kW in accordance with MIL-STD-

1332. THIS IS A

5kW sustained power is required for all AC outputs.

CRITICAL

PERFORMANCE

PARAMETER.”

Is the 5kW sustained power requirement for

24VDC,120VAC, 240VAC

and or 208V 3 Phase power?

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Description 3.2.3

“3.2.3 It is desired that the

MHEES be able to sustain

10 kW peaks of 10 minutes in duration.”

Is the 10kW peak for

24VDC,120VAC, 240VAC

and or 208V 3 Phase power?

Yes. AC and 3 phase only.

14 SOW

3.2

Can you provide technical info (or a link to technical info) about 3kw TQG, 5kw

AMMPS and 10kw

AMMPS, such as weight, fuel consumption, etc?

Paragraph 1.2 of the Purchase

Description provides a link.

15 SOW

3.5

Would a proposed programme of work of a shorter duration than the 18 months to delivery point be acceptable to USMC?

Would a shorter programme be desirable, or would USMC prefer the work to be spread over 18 months?

Offerors may propose what they consider to be value added to their proposal for consideration.

Description 3.2.4

Can we assume that if

MHEES is accepting a 108-

130VAC single phase output from solar panels, Offerors may propose what they this is either:

a) The primary power source (in lieu of a generator)

b) Delivered to MHEES via an inverter (which comes with the solar panel system) which will synchronise to generator or hybrid system power output

Should this not be the case, it implies that a DC-AC inverter with synchronisation to a primary power source is required to be on Trailer 1 as part of the MHEES core system.

Purchase

Description 3.5.6

What is the desired minimum amperage of 24

Volt DC output?

I.e. is this a small amount of power as a „service socket‟ to power a laptop or basic tools during maintenance, or a 24V DC output for extended use by power users?

Offerors may propose what they