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G99 Type Test Certificate – GPTE-A-51.2  

The G99 Type Test Certificate for GPTE-A-51.2 provides a compliance reference for the listed GeePower lithium-ion battery energy storage system model.

For UK-focused distributors, installers, EPC partners, and project stakeholders, this document helps support grid connection documentation review when evaluating GeePower ESS products for applicable projects.

The certificate confirms that the submitted sample of the listed equipment was tested according to G99/1-10:2024 and the related A2-3 tests for a Type A inverter connected power generating module.


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Certificate Summary


✅ Certificate Name: G99 Attestation of Conformity

✅ BV LCIE China No.: 2666AS02CNQV60555

✅ Applicable Model / Reference: GPTE-A-51.2

✅ Product Description: Lithium-ion Battery Energy Storage System

✅ Issued To / Manufacturer: Hunan GeePower Energy Technology Co., Ltd

✅ Standard: G99/1-10:2024, A2-3 Tests for a Type A Inverter Connected Power Generating Modules

✅ Test Report No.: CNQV-ESH-P25111500

✅ Date of Issue: February 2, 2026

Why This Certificate Matters


For the UK energy storage market, grid connection documentation is one of the key checks for installers, distributors, and project partners.

This G99 Type Test Certificate may support:

UK distributor and installer supplier evaluation

DNO-related project documentation preparation

Grid connection compliance review

EPC project documentation

Customer-facing technical due diligence

Tendering and procurement support

Internal product qualification before cooperation

For formal project submission, this certificate should be reviewed together with the latest product datasheet, installation manual, inverter/battery configuration, and any project-specific requirements.


Questions?



​Q1:  What is the G99 Type Test Certificate for GPTE-A-51.2?

It is an Attestation of Conformity for the GeePower GPTE-A-51.2 lithium-ion battery energy storage system. The document states that the submitted sample was tested according to G99/1-10:2024 and related A2-3 tests for a Type A inverter connected power generating module.


​Q2:  What product model does this certificate apply to?

This certificate applies to GeePower GPTE-A-51.2.


​Q3:  Is this certificate relevant for UK energy storage projects?

Yes. This certificate can support UK-focused grid connection documentation review for applicable energy storage project configurations. Installers, distributors, EPC partners, and project stakeholders may use it as part of supplier evaluation and project documentation.


​Q4:   Does this certificate apply to all GeePower ESS products?

No. It applies only to the listed model and tested configuration. Other GeePower models or customized configurations may require separate certificates or technical documents.


​Q5:    What technical characteristics are listed in the certificate?

  The certificate lists GPTE-A-51.2 as a hybrid system with PV DC input, battery DC input, and on-grid AC input/output characteristics. The listed rated output power is 6200 W, with a battery capacity range from 5120 Wh to 30720 Wh depending on the number of battery modules. 


​Q6:   Can I use this document for DNO submission?

This certificate may support DNO-related documentation review, but project submission requirements can vary depending on the installation, system configuration, and local network operator requirements. Please contact GeePower for the latest controlled document package before formal submission.


​Q7: Is this certificate enough for project approval?

It may support compliance review, but it does not replace project-specific approval, installation design review, DNO assessment, or any additional documentation required by the relevant authority or network operator.


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