FAQs on GSL Testing

Review our frequently asked questions to learn more about qualifications and the tests performed in this environment.

Facility Capabilities and Testing Process and Timeline Testing Integration and Operations

Facility Capabilities and Testing

What interest does GSL have in energy storage equipment testing?
GSL’s purpose is to validate the performance of new technologies for the developing needs of the U.S. electricity grid.

What do participants in GSL testing get in return? Does GSL testing grant technology certification?
GSL does not certify products but rather assists in third-party verification, data analysis, and validation of system performance.

Who is eligible to submit a battery system for testing?
Companies, research institutions, startups, and nonprofits with systems that are test-ready may apply. Foreign entities may be considered but must meet access and clearance requirements.

What documents or technical information do I need to submit?
A complete application must include your system schematic, SDS (Safety Data Sheet) documentation, a preliminary hazard analysis (if available), and your testing goals.

What kinds of battery systems can be tested at the GSL?
GSL’s T&V1 and T&V2 labs are equipped to test a wide range of battery chemistries and formats, from lithium-ion and flow batteries to molten salt and sodium-ion systems.

What are the differences between Lab 1 (T&V1) and Lab 2 (T&V2)?
T&V1 is ideal for smaller systems (≤40 kWh) and early stage prototypes. T&V2 supports more robust, commercial-ready systems with energy capacities over 400 kWh.

Do GSL testing spaces accommodate large-sized batteries or integrated systems?
Yes. T&V2 rooms can house large enclosures up to 237 ft², with advanced safety and grid interface features.

What kinds of performance or reliability data can I expect from testing?
Testing can support evaluation of thermal behavior, operational stability, cycle life, degradation patterns, and system-level validation under grid-like conditions. Test data will not be made available to parties outside of agreements.

Does the GSL provide certification or formal approval for my system?
No. The GSL provides independent, third-party validation data but does not issue product certifications.

Can I work with GSL on long-duration or custom test protocols?
Yes. GSL can accommodate extended test durations (up to 6 months) and custom test plans with prior coordination.

Process and timeline

What happens after I submit my application?
Your submission will go through a technical screening. If eligible, it will proceed to the Battery Review Committee for safety, funding, and facility readiness review.

How long does the review process typically take?
The average timeline for review and disposition is up to 6 weeks, depending on queue and documentation completeness.

Can I get help preparing my application?
Yes. The GSL team can answer questions and help clarify documentation needs during pre-submission.

Testing integration and operations

Is a Non-Disclosure Agreement (NDA) required to work with the GSL?
No. NDAs are not required, but they may be submitted if warranted by your organization or institution. If you believe an NDA is necessary to proceed, please download and review the NDA agreement and include it with your application for review.

What are the key considerations that could disqualify a system from testing?
Systems that exceed power, voltage, or spatial limits, or lack sufficient safety documentation, may not be eligible until revised.

Can I preview the facility or infrastructure before testing?
Yes. GSL offers virtual or in-person previews for approved applicants preparing complex integration setups.

How do I coordinate shipping, setup, and safety procedures once approved?
Once accepted, GSL staff will coordinate logistics, safety checklists, and test scheduling with your technical team.