Commercial Battery Storage in Melbourne

A demand charge is a component of commercial electricity bills based on the highest power draw recorded during a billing period, measured in kW rather than kWh. Even a brief 15-minute peak sets the demand charge for the entire month. Battery storage reduces demand charges by discharging when the site's draw approaches a threshold, preventing the peak from being recorded. The battery's energy management system monitors real-time demand and dispatches automatically.

Commercial sizing starts with 12 months of interval meter data at 5 or 15-minute resolution. The data shows when demand peaks occur, how high they are, and how long they last. Battery capacity is sized to cover the peak duration with enough power to keep demand below the target threshold. There is no reliable rule of thumb for commercial sizing, which is why we require the interval data before making any recommendation.

Yes. A battery-only commercial system charges from the grid during off-peak low-rate periods and discharges during high-rate or high-demand periods. This time-of-use arbitrage strategy can be viable on sites with significant rate differentials between off-peak and peak tariff windows. Adding rooftop solar improves the economics by providing a lower-cost charging source, but it is not a requirement.

In a full installation, we supply the equipment, design the electrical layout, obtain the necessary permits and grid connection approvals, install the system, commission it, and train your team. In a supply-only arrangement, we supply the battery, inverter, and associated equipment with design specifications, and you engage your own CEC-accredited installer to do the electrical work. Supply-only suits operators with an established site contractor they prefer to use.

Commercial batteries can participate in VPP programs alongside demand management, with the EMS managing competing priorities. In practice, VPP dispatch events are typically brief and the program operator works within parameters that preserve minimum state-of-charge for site demand management. The EMS can be configured to refuse dispatch events that would compromise demand management targets. We discuss the interaction between VPP and demand management during the design phase.

Commercial LFP battery systems are typically warranted for 10 years and designed for useful operating lives of 15 to 20 years. At one full cycle per day, a battery rated for 4,000 cycles has over 10 years of daily cycling before reaching the warranty capacity floor, which is typically 70 to 80 percent of original rated capacity. At that point the battery continues to operate, just with reduced usable capacity. For commercial assets managed over longer depreciation periods, the expandable modular platforms we install allow newer modules to be added alongside older ones, effectively refreshing capacity without replacing the entire system.

Commercial battery storage reduces a site's grid import and, when paired with rooftop solar, lowers the proportion of energy sourced from the grid. This translates to a measurable reduction in Scope 2 emissions under the Greenhouse Gas Protocol framework, which is the basis for most Australian corporate sustainability reporting. We provide generation and consumption data exports from the monitoring platform in formats compatible with common sustainability reporting tools. Whether a battery system qualifies for specific green building certifications such as Green Star or NABERS credits depends on the certification version and the site's base case - we advise on this during the design phase.

Lead times for commercial battery systems depend on equipment availability, grid connection approval timing from your distributor, and site-specific preparation work such as switchboard upgrades. For small commercial systems below 30 kW, the typical timeline from signed agreement to commissioning is six to twelve weeks. Larger systems requiring a formal connection agreement with the distributor or civil works for pad-mounted equipment can take four to six months. We provide a detailed project programme at the design stage so you can plan around the installation schedule.