Summary
Currently, it is difficult to fairly compare the performance of commercially available battery storage equipment (BSE) on the market, as there is no common standard for how performance characteristics are to be measured and reported.
The Battery Storage System Performance Standard project addressed this need by developing a proposed Australian Battery Performance Standard (ABPS) which is limited to BSE with a maximum size of 100 kW peak power and 200 kWh stored energy, connected to a solar photovoltaic (PV) system.
The project reviewed existing local and international BSE standards, best practice documents, and guidelines and codes to develop the proposed ABPS. The ABPS includes standardised performance testing protocols and reporting methods for battery manufacturers and system integrators.
The proposed ABPS has been submitted to Standards Australia for its consideration and assessment. An industry Best Practice Guide (BPG) was also developed for use by industry stakeholders in the interim until Standards Australia considers the release of the ABPS as an Australian Standard.
Key results
The Project Consortium achieved the main aim of the ABPS Project, being to develop technology agnostic standardised testing and reporting requirements for the performance of BSE designed to be used within residential or small-scale commercial applications in conjunction with solar PV systems.
The key deliverable achieved was the submission of the draft Standard to Standards Australia, for consideration as an Australian Standard. Given the extent of the stakeholder and industry consultation undertaken during the Project, the Project Consortium is of the view that the APBS makes a strong candidate for becoming an Australian Standard.
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How the project works
The Battery Storage System Performance Standard project developed various BSE performance tests, which were then validated through extensive testing of commercially available BSE. Additionally, the project also developed:
The project will develop performance metrics and test commercial battery systems to optimise the test protocols included in the proposed ABPS. The project will also develop:
- a battery capacity estimation methodology
- a set of recommended criteria to select a battery management system
- a process to assist the review of performance hazards related to BSE operation
- recommendations for information to be included on BSE safety information sheets
- a comprehensive gap analysis on existing local and international BSE related performance standards was undertaken. This gap analysis report is a useful resource for anyone in Australia, and internationally, who wishes to have an overview of the many BSE performance related standards, codes and best practices published as at the end of 2019.
Benefit
By specifying standardised testing and reporting of the associated performance characteristic of BSE, it will allow end users to be better informed about the expected performance of BSE under Australian conditions. It will also allow various battery systems tested to the ABPS to be easily compared on a fair and consistent basis.
The proposed ABPS is also expected to:
- provide clarity for battery manufacturers, system integrators and retailers regarding how to report the performance of their products and support their offer to the market
- enhance visibility in the battery market regarding the performance of different products for their intended applications
- support the uptake of the domestic battery market by providing greater clarity and confidence to end users on expected performance outcomes.