Battery Energy Storage Systems

Battery Energy Storage Systems (BESS) are crucial to the increased adoption of de-centralised power infrastructure models. The rapid advancements achieved within the battery storage space have added significant value to commercial and utility scale renewable power generation models.

Integrating advanced technologies such as inverters, control components, sensors and multiple battery modules allows the BESS to self-sufficiently capture charge from the connected solar array, optimise the ideal utilisation of the captured power, and execute the discharge of that power during identified ‘high-energy consumption’ periods.

BESS technology provides significant value to Microgrids and Stand Alone Power Systems (SAPS), ensuring consistent distribution of stored energy both day and night.

Commercial solar arrays can also capture significant benefit through ‘peak shaving’. The integrated control components of the BESS allow the inclusion of a ‘consumption cap’ to be placed on energy drawn from the grid during peak consumption periods. The energy consumption shortfall is then made-up through stored energy, with the BESS utilising low peak periods to replenish stored supply from the grid.

CPS National can source and integrate Battery Energy Storage Systems into both established and newly designed medium to large scale solar arrays.
Contact us for more information regarding the benefits BESS technology can provide your commercial or utility-scale solar array.

What is a BESS and how does it work?

Battery Energy Storage Systems (BESS) have seen significant technological advances since the turn of the century. The addition of advanced technologies allow the utilisation of BESS’s to complete tasks beyond the capabilities of regular batteries. Modern day BESS’s integrate built in inverters and computerised control systems to self-sufficiently manage the storage and discharge of power generated by renewable energy plants. The systems self-sufficiency allows it to add significant value to not only residential based solar arrays, but commercial and utility scale too.

BESS battery energy storage system

BESS as part of Onslow Stage 2. Image courtesy of Horizon Power.


The diversity of BESS technology allows its application to solve a number of different commercial and utility-scale energy consumption problems, including:

Peak Shaving

The most common motive to implement BESS technology into a commercial-scale solar power program is to further reduce electricity consumption costs. Peak shaving is one key energy consumption reduction technique that can be amplified with the installation of BESS technology.

Peak shaving is a concept used to significantly reduce the level of power consumed from the grid during peak consumption periods. Power drawn during peak consumption periods often carries significant tariffs, adding substantial costs to a commercial utility bill. Peak shaving allows a maximum cap to be placed on power consumption during peak periods, with the entity able to utilise energy stored within the BESS to cover the difference in operational consumption requirements.


Microgrids have long been touted as an alternative to the traditional ‘pole and wire’ power distribution network in Australia. Battery Energy Storage System technology is crucial to the increased adoption of this distribution method due to its ability to draw and discharge continuous power from the off-grid source both day and night. The self-sufficient characteristics of BESS technology solves a number of logistical challenges involved with the costly, ongoing maintenance of Australia’s pre-existing ‘pole and wire’ distribution network.

Uninterruptible Power Supply (UPS)

Coupled with the already highlighted benefits of the installation of BESS technology within a solar array, the technology also provides a form of Uninterruptible Power Supply (UPS), providing an emergency power source should you experience critical supply issues from the grid.

The Technology

Battery Energy Storage Systems have far more to offer than a standard battery. BESS’s are packed full of advanced technologies, allowing the system to self-sufficiently capture charge from the connected solar array, optimise the ideal utilisation of the captured power, and execute the discharge of that power during identified ‘high-energy’ periods. Typically, Battery Energy Storage Systems will include the following technology:


The inclusion of an inverter into the Battery Energy Storage System facilitates the flow of electricity between the AC line voltage and the DC battery terminals. The inverter converts power between the AC and DC states, allowing the system to both charge and discharge the batteries.

Control Components

The integration of high level control components into the BESS promotes self-sufficiency, allowing the system to monitor and control the performance of all internal technologies to ensure optimum efficiency. The control components are also utilised to analyse energy consumption data, allowing the system to discharge stored power during ‘high-energy’ consumption periods.

Integrated Sensors

An extension to the integrated control components, sensors assist in ensuring the continued safe operation of the BESS. The inclusion of these sensors also allows accurate reporting on key aspects of the systems operation such as the ongoing monitoring of operational temperatures, identification of battery module failure and energy usage data reporting for both the operator and energy supplier.

Multiple Battery Modules

Further to the self-sufficiency theme, the inclusion of multiple battery modules ensures the systems continuity should one of the battery modules fail. This modular system allows the simple replacement of any failed battery modules without experiencing any downtime.