Attachment 1 - Statement of Work.pdf

RG II-001, Exhibit A (DRAFT started 6-17-2022) Page 1 of 5

APPENDIX A

STATEMENT OF WORK

"AC/DC or DC/DC Solution for Energy Storage System Emulation Capability"

6/13/2024

1.0 BACKGROUND

The National Renewable Energy Laboratory (NREL) is a national laboratory owned by the U.S.

Department of Energy (DOE). NREL is the only federal laboratory dedicated to research, development, commercialization, and deployment of renewable energy and energy efficiency technologies. NREL is managed and operated for DOE’s Office of Energy Efficiency and Renewable Energy by The Alliance for Sustainable Energy (Alliance), the “M&O Contractor”.

2.0 OBJECTIVE

NREL intends to provide DOE and industry with critical Research, Development, & Demonstration (RD&D) capabilities to accelerate and scale aggressive transportation decarbonization goals for the on- and off-road electric vehicle (EV) fleet. An energy storage system emulation capability will provide the ability to test system-level scenarios of a high-power electric vehicle charging station and its integration and operations with renewables and the power grid. The goal is to create power management conditions that represent those of multiple large capacity, high voltage batteries like those that may be found on future heavy-duty trucks, buses, and military vehicles.

NREL is in search of solutions from converter manufacturers to supply Alternating Current (AC)/Direct Current (DC) or DC/DC converter solutions which are configurable to represent multiple DC independently operated smaller units or a single combined unit and will need to be flexible to represent the response characteristics of a wide range of energy storage technologies available today and expected to be available in the future.

3.0 SCOPE OF WORK

To meet the objective, the scope of the work the Subcontractor shall perform entails the following:

3.1 Provide Engineering Drawings of the proposed equipment (see Technical Specifications - Addendum 1).

3.2 Support site integration of the proposed equipment at NREL’s Campus throughout the construction of the site.

3.3 Furnish and Deliver the required equipment see Technical Specifications - Addendum 1).

3.4 Commissioning of equipment and demonstration of initial functionality.

3.5 NREL requires products and equipment be listed by an OSHA-approved nationally recognized testing laboratory (NRTL) OR that products and equipment are properly evaluated and accepted using one of the methods identified below.

https://www.nrel.gov/ https://www.nrel.gov/ http://www.allianceforsustainableenergy.org/

RG II-001, Exhibit A (DRAFT started 6-17-2022) Page 2 of 5

NREL requires one of the following options be selected and included/addressed in the proposal:

1. Offered products and equipment shall carry appropriate NRTL listing where applicable.

2. Offeror shall support field evaluation by a third-party NRTL certifier through design review, factory evaluation prior to shipping equipment to NREL and/or field evaluation once installed. The offeror shall detail how this process would be completed throughout all phases of the project and identify any additional costs to accomplish this may be included in the quote or proposal.

4.0 TASKS

4.1 System Design

The Subcontractor shall provide the completed component and system design to ensure compliance with specified technical, safety, and performance standards. This task includes examining all design documentation, verifying industry and regulatory compliance, assessing system integration, installation overseeing performance validation, and conducting safety checks.

4.2 Equipment Manufacturing

The Subcontractor shall complete the system construction, ensuring adherence to the project's specifications, safety standards, and design documents. This includes material procurement, construction or assembly, quality control checks, and final adjustments for optimal performance.

4.3 Equipment Delivery

The Subcontractor shall ensure timely delivery of all equipment necessary for installation, coordinating logistics to meet the project’s schedule and location requirements. This task includes managing transportation, handling, and on-site delivery, while verifying that all equipment arrives in optimal condition and matches the specifications outlined in the project documents.

4.4 Commissioning

The Subcontractor shall assist NREL with the commissioning of the system as needed following installation to ensure it functions according to the project's specifications and performance standards.

5.0 REVIEW MEETINGS AND TRAVEL REQUIREMENTS

The selected vendor shall convene virtual meetings with NREL researchers on a monthly basis for a duration of one hour to provide updates on the progress of deliverables. Additional meetings may be required based on project progression. Furthermore, it may be necessary for one NREL researcher to visit the selected vendor's site to observe any acceptance testing, which will be subject to further discussions with the vendor.

6.0 DELIVERABLES

RG II-001, Exhibit A (DRAFT started 6-17-2022) Page 3 of 5

The Subcontractor shall provide the following deliverables by the due date as indicated:

Deliverable No.

Associated Task(s) No.

Deliverable Description Due Date

6.1.1 4.1 Completed component and system design delivered to NREL

Will be identified during contract negotiations.

6.1.2 4.1 Support completion of NREL site design by providing design review, responses to NREL’s design team, and construction team for support of site integration

Will be identified during contract negotiations.

6.2 4.2 System manufacturing/construction complete.

Will be identified during contract negotiations.

6.3 4.3 Equipment delivered to NREL for installation.

Will be identified during proposal evaluation.

6.4 4.4 Commissioning following installation to demonstrate system functionality.

Will be identified during contract negotiations.

DELIVERABLE ADDRESS:

The Subcontractor shall clearly label all deliverables to include:

• The subcontractor’s name

• NREL’s subcontract number

• NREL Technical Monitor’s name

• Deliverable date, and

• Deliverable description.

Electronic deliverables shall be sent via email to the Technical Monitor as follows:

**, Technical Monitor e-mail: **@nrel.gov

• One (1) master electronic version, including graphics

Deliverable(s) No. 6.3 shall be shipped to:

National Renewable Energy Laboratory Attn: **/** NREL’s Flatirons Campus Laboratories and Offices, National Renewable Energy Laboratory 19001 W 119th Ave, Arvada, CO 80007

DELIVERY OF COMPUTER SOFTWARE CODE (AS APPLICABLE)

All object, source, or other code (including all applicable data sets) developed under this subcontract effort shall be provided to the technical monitor as a condition of final payment, in accordance with the subcontract. It is expected that all delivered source code shall be original, and the subcontractor shall provide a written certification to the Technical Monitor that all source, RG II-001, Exhibit A (DRAFT started 6-17-2022) Page 4 of 5 or other code developed and delivered under this subcontract does not contain any open source code - as a condition of final payment in accordance with the subcontract. The subcontractor’s (including all lower tier subcontractors, as applicable) certification shall specify that “All source, or other software code developed and/or delivered under this Subcontract No.__________ is original and does not contain any 3rd party or other open source software.”

DELIVERY OF OPEN SOURCE SOFTWARE

All object, source, or other code (including all applicable data sets) developed under this subcontract effort shall be provided to the technical monitor (TM) as a condition of final payment, in accordance with the subcontract.

7.0 ELECTRONIC REPORTING REQUIREMENTS FOR SUBCONTRACT REPORT DELIVERABLES

It is NREL’s intention to publish subcontract report deliverables containing publicly available information (e.g. non-confidential, non-protected, non-proprietary information) for distribution on the internet.

The subcontractor shall provide the final approved version of report deliverables in accordance with the electronic reporting requirements described below.

The technical monitor may specifically direct the subcontractor to provide reports in one or more of the file format standards provided below:

7.1 The subcontractor shall submit all report deliverables (including status, annual, or final reports) as electronic files in Adobe .pdf format, preferably with all graphics and images embedded within the document.

7.2 All final approved version submissions shall be delivered to NREL via e-mail to the NREL Technical Monitor.

7.3 If it is not possible to include all of the graphics and images (figures, illustrations, and photographs) in the same file as the text, NREL will accept the text in Adobe .pdf formats and the graphics and images as separate electronic graphic or image files*.

The accepted standard for page layout and graphics is the Adobe Creative Suite of programs.

*The acceptable graphic or image file formats are: .eps, .tif, .gif, .jpg, .wmf, .emf, .pct, .png, .bmp, .psd, .ai, .fh, .qif, .fpx, cdr. The preferred resolution for graphics or images is 300 dpi. Include all fonts used in creating the file.

7.4 For animation, video, or multi-media elements, CD-ROM, DVR and thumb drive are acceptable technical deliverable media.

7.5 For all calculations in support of subcontract reports that are conducted in ASPEN+, an electronic copy of INPUT, REPORT and BACKUP (if Model Manager is used) must be submitted with all reports. Additionally, if costing or sizing calculations are conducted in a spreadsheet [no process calculations (heat and material balances) in spreadsheet format are permitted], a copy of the fully documented MS Excel file shall be supplied.

RG II-001, Exhibit A (DRAFT started 6-17-2022) Page 5 of 5

7.6 A fully executed model release shall be supplied to NREL with all photographs and images, regardless of whether such photographs or images are delivered to NREL electronically or in hard copy. Such model release shall certify that the Alliance for Sustainable Energy, LLC, Management and Operating Contractor for the National Renewable Energy Laboratory for the U.S. Department of Energy is granted a non-exclusive, paid-up, irrevocable, worldwide license to publish such photographs in any medium or reproduce such photographs or allow others to do so for United States Government purposes. Model releases are required in all situations in which a reasonable person would respond in the affirmative to the question – could someone, other than the model himself/herself, recognize the person in this photograph or image? All model releases shall be provided to the subcontract associate as a condition of final payment, in accordance with the subcontract. To obtain a Subcontractor Model Release form, please contact images@nrel.gov.

8.0 ACKNOWLEDGEMENTS IN SUBCONTRACTOR PUBLICATIONS

In any scientific or technical report or article, conference paper, journal article, etc. based on or containing data first produced in the performance of this subcontract and published in academic, technical or professional journals, symposia proceedings or similar works, the subcontractor shall use this acknowledgement stating, “This [article, conference paper, journal article, etc.] was developed based upon funding from the Alliance for Sustainable Energy, LLC, Managing and Operating Contractor for the National Renewable Energy Laboratory for the U.S. Department of Energy.”

9.0 COPYRIGHT PERMISSION/AUTHORIZATIONS

The subcontractor is responsible for obtaining copyright permissions and/or authorizations for all information and/or data, as applicable that is incorporated into all final technical reports.

Electronic copies of these copyright permissions and/or authorizations shall be provided to the at the email address provided below. The subcontractor shall also provide a written certification to the Technical Monitor as to such permissions and/or authorizations as a condition of final payment. The subcontractor’s (including all lower tier subcontractors, as applicable) certification shall specify that “I have obtained all necessary and legally required copyright permissions and/or authorizations for any and all information, data, graphs, images, etc., as applicable, that is incorporated into the final Technical Report titled __________________________, delivered under this Subcontract No.__________. Copies of these permissions and/or authorizations are attached.”

mailto:images@nrel.gov

Addendum 1: Technical Requirements

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AC/DC or DC/DC Solution for Energy Storage System Emulation Capability

Capabilities:

This energy storage emulator shall provide the following capabilities:

• Represent direct current (DC) energy storage systems with terminal voltages ranging from 300 to 1500 VDC.

• Accept charging rates between 0 kW to 4 MW (up to 4000 A).

• Allow testing of 2 individual emulated battery systems at 0 to 1.875 MW (up to 2000 A) separately but operate at full power in parallel.

• Remote monitoring and control for system operations and configuration.

• Represent DC battery system by dynamically accepting control setpoints from a digital real time simulator (DRTS) The vendors are invited to submit proposals for an aggregate system capable of supporting up to 10 MW, to facilitate the testing of five individual emulated battery systems, each ranging from 0 to 1.875 MW. NREL will evaluate the proposals and, depending on available funding, plan to purchase 2 to 5 individual systems. Proposals should include solutions tailored to each of these scenarios.

The system is intended to be interfaced with commercial or research electric vehicle charging infrastructure, distributed energy resources (DERs) such as solar PV, stationary storage, and other microgrid components under separate investments that are powered by simulated power grid components. An example system that is fed from DC is shown in Figure 1 and that is fed from AC in Figure 2.

Figure 1. Example of the complete testing system for high-power EV charging with the energy storage emulation components highlighted in purple.

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Figure 2. Example of the complete testing system for high-power EV charging with the energy storage emulation components highlighted in purple.

Intended applications: The power conversion equipment procured under this RFP will dynamically accept control setpoints such as DC voltage from a DRTS to emulate the response of a battery system. In application 1, 2, and 3 this is the battery of an EV, charging with the device under test (DUT) the electric vehicle supply equipment. In application 4, the system is several batteries to evaluate multiple electric vehicle supply equipment. In all cases the proposed system will be required to provide bi-directional power flow from the grid to the DUT which will be connected to the same grid or a simulated grid to characterize the performance of the DUT.

• Application 1:

o Testing the electric vehicle supply equipment response to grid disturbances while in operation

• Application 2:

o Demonstrating the coordination of multiple high-power chargers operating from a common power grid interface

• Application 3:

o The impacts of battery chemistry attributes to the controls and operations of high-power vehicle charging up to 1500 VDC and across a range of power levels from 100 kW to 4.0 MW

• Application 4:

o Configurations of charging infrastructure that may leverage a common high voltage DC distribution bus to serve the needs of multiple individual vehicles

Duty Cycle:

Research experiments to be conducted may be as short as 1hr in duration and may extend to 8hrs depending on the desired conditions and scenario. Experiments may be repeated daily within normal working hours. The system may also be in a standby or powered off mode for an extended period (1 to

Page | 3 multiple weeks) between experiments while auxiliary systems are configured for future testing scenarios.

Environmental Conditions:

The system will be installed outdoors and is expected to be located at NREL’s Flatirons Campus. The campus is at high altitude and incurs extreme weather. Unique specifications are included in the Table 1.

Operations may be limited to specified environmental conditions; however, the unit(s) shall be environmentally protected for outdoor installation and operation. Other exposures may include high winds and dusty conditions. The unit will need to be protected from lightning strikes. In case the proposed equipment is not designed for harsh environmental conditions as described below, the vendor is expected to propose a suitable enclosure solution.

Desired Specifications:

Table 1: Unique Specifications

Energy Storage Emulation Capability

Environmental conditions

Ambient temperatures: -200F to +1100F

Humidity: full-range, outdoor conditions, Arvada, Colorado

Elevation: 6040 ft above sea level

Winds: 155 mph basic wind speed

Grid Supply 13.2kV, 3-phase or 5kV DC-interface operating at 4.125kV

Terminal Voltage(s) 300 – 1500 VDC

Operating power range 0 – 2 MW (Individual Source) and 0- 4 MW (Aggregated Source)

Efficiency >95%

DC Distribution for DUT Connections:

NREL intends to develop a DC distribution system to connect this equipment to various assets (as described earlier) in different configurations at the individual source level (individual source(s), parallel individual sources, and the aggregate system). The proposal shall include all connections below the individual source level (see figure 3). The system must be capable of automatic reconfiguration for paralleling the individual sources in any combination.

Required Performance Specifications (individual source and aggregate system):

Minimum performance specifications are provided in the Figure 3 and 4, for individual and aggregate operation, respectively. Quotes for systems that exceed these minimum requirements, which are based on existing solutions, are acceptable as long as the input AC power or DC power for the entire system

Page | 4 does not exceed 10 MW. Under either operating mode, the minimum range must be met without any interruptions, physical configuration changes, and under load.

Figure 3: Individual/single unit performance characteristics

Figure 4: Aggregate performance characteristics from the system