Battery Energy Storage Systems

A battery energy storage system (BESS) captures and stores electrical energy from renewable energy sources (such as solar panels or wind turbines) or from the electricity grid, and discharges it on demand. BESS converts electrical energy to chemical energy for storage in battery modules, then reverses the process through a power conversion system to supply AC power to connected loads. This allows energy generated at one time to be used at another, making it a key enabler of renewable energy integration, peak demand management, backup power supply, and off-grid operation.

A BESS is not a single product. It is a set of subsystems that have to be sized, protected and controlled together, and the engineering sits in how they are matched to the site.

• Battery modules. The cells that store the energy, grouped into racks and sized to what the site actually needs.

• Power conversion system. The inverter converts DC electricity from the batteries to AC for connected loads, and reverses that flow when charging.

• Battery management system. Cell-level monitoring of voltage, temperature and state of charge, protecting the pack from operating outside its limits. Our battery management system and remote monitoring track degradation in real time.

• Energy management system. Decides when to store excess energy and when to start discharging stored energy, against site load, available generation and tariffs.

• Thermal management. Module-level thermal management holds cells inside their operating window, which is what Australian ambient conditions demand.

• Protection and fire suppression. Utility-grade electrical protection, gas detection and container-level fire suppression, which is what your site safety case and hazardous-area siting assessment will ask for.

BESS supports a wide range of applications, including mining operations, remote community power supply, renewable energy integration, peak demand management, grid stability and frequency response, backup power, and commercial load shifting. The suitability of BESS depends on the technical, economic, and regulatory requirements of each site. As a standard, BESS are unsuitable for residential applications in habitable areas of a home or attached buildings.

LFP battery systems typically deliver 15 to 20 years of service with daily cycling, based on a rated capacity of 6,000+ cycles at 80% depth of discharge. Actual lifespan depends on operating conditions, the effectiveness of thermal management, and charge-discharge patterns. In Australian environments, where ambient temperatures regularly exceed 40 degrees Celsius, robust thermal management is essential to maintaining battery capacity and extending operational life. Our battery management system and remote monitoring track degradation in real time, enabling proactive maintenance planning.

Solar panels connect to the BESS through a shared DC bus or via separate inverters managed by the energy management system. During peak solar generation, excess energy charges the batteries. When solar output drops (in the evening, under cloud cover, or in adverse weather conditions), the EMS automatically dispatches stored energy to maintain a consistent power supply. We design integrated solar-BESS systems that maximise self-consumption of renewable energy, minimise grid dependency, and optimise the overall energy supply across changing generation profiles.

Modern BESS with properly engineered thermal management, gas detection, and fire suppression systems operate safely in demanding environments. Our BESS designs incorporate multi-layer protection: cell-level monitoring through the BMS, module-level thermal management, and container-level fire suppression systems.