Commercial Battery Storage
Melbourne & Regional Victoria
Your electricity bill has a section most businesses never address: peak demand charges. A commercial battery system targets that directly — flattening your demand profile, storing solar overnight, and keeping critical operations running when the grid fails.
Free Commercial Assessment
No cost. No obligation. We analyse your actual bill.
How It Works
What Does a Commercial Battery Actually Do?
A battery energy storage system (BESS) does three things that directly reduce what your business pays for electricity.
Cuts peak demand charges
Peak demand charges are billed based on your highest 30-minute power draw during peak periods — often 30–50% of a commercial electricity bill. A battery discharges during those windows, flattening your peak and reducing the demand component directly.
Stores solar for overnight use
If you have commercial solar, most generation happens during business hours when you may already be importing less from the grid. A battery captures the excess and shifts it to evening operations, overnight security systems, or early-morning startup loads.
Keeps critical operations running
A battery configured for backup power automatically switches your critical loads — servers, refrigeration, production lines — to battery supply during grid outages, without manual intervention and without waiting for a generator to start.
How a C&I BESS Works
Peak Demand — Before & After Battery
Peak Shaving
Why Demand Charges Matter
Your electricity retailer watches your highest 30-minute power draw each billing period — and charges you for that peak for the entire month. One busy afternoon can inflate your demand bill for 30 days.
Demand charges = 30–50% of commercial bills
For most medium-to-large commercial sites, the demand component rivals or exceeds the energy component. It is the single most impactful line item a battery can address.
Battery discharges before your peak hits
The battery management system monitors your site's power draw in real time and pre-empts demand spikes by discharging before your highest-draw equipment fires up simultaneously.
Savings appear on the very next bill
Unlike solar payback which builds over months, demand charge reduction typically shows up in the first full billing cycle after installation — making the savings immediately visible.
Applications
Commercial Battery Storage for Every Business Type
The right battery application depends on your business's energy pattern, existing solar, and operational priorities.
Small Business & Retail
Cut demand charges from afternoon air conditioning and equipment peaks. A battery paired with existing solar covers evening trading hours without grid imports.
Peak shaving · Solar shiftIndustrial & Manufacturing
Large motor start-up events create extreme demand spikes. A BESS absorbs those peaks and can be sized to support a 100kW+ solar system with overnight production loads.
Demand management · Large-scale BESSStrata & Mixed-Use
Common-area lighting, lifts, and EV charging create measurable demand charges. A shared battery reduces building-wide grid dependency and benefits all owners.
Common area savings · EV integrationMedical & Cold Chain
Power reliability is non-negotiable. A battery configured for backup keeps refrigeration, servers, and life-safety systems running through outages without relying on a generator.
Backup power · Critical loadsWarehouse & Logistics
Forklift charging, loading dock equipment, and shift changes create predictable demand peaks. A battery sized around your interval data targets exactly those windows.
Load shifting · Fleet chargingGovernment & Education
Budget certainty matters. A commercial battery delivers predictable, forecastable energy savings against known demand rate schedules — ideal for organisations with long planning horizons.
Demand certainty · VEU eligibleIncentives & Savings
Commercial Battery Incentives in Victoria
Commercial battery storage qualifies for different incentives than residential systems. Here is what applies to your business in 2026.
Victorian Energy Upgrades (VEU)
The VEU program provides financial incentives for eligible energy efficiency upgrades, which may include commercial battery systems depending on the application and site type. Supply Solar identifies VEU eligibility as part of your commercial assessment.
STCs for Solar Under 100kW
If your battery installation includes a new solar system under 100kW, Small-scale Technology Certificates (STCs) reduce the upfront cost of the solar component at point of sale. Supply Solar applies STCs directly to your invoice.
LGCs for Systems Over 100kW
Solar systems above 100kW generate Large-scale Generation Certificates (LGCs) based on actual energy produced over time. These can be sold to electricity retailers, creating an ongoing revenue stream that contributes to your system's payback.
Tax Depreciation & Instant Asset Write-Off
Commercial battery and solar assets may qualify for accelerated depreciation or instant asset write-off under current ATO provisions, improving the after-tax economics of your project. Speak with your accountant alongside your Supply Solar proposal.
The federal Cheaper Home Batteries Program applies to residential installations only and does not cover commercial systems. Supply Solar identifies every applicable commercial incentive during your site assessment — including schemes that are not widely advertised.
How It Works
From First Call to First Charge
We handle the full project — from energy audit and design through to installation, commissioning and ongoing monitoring.
Free Site Assessment
We review your interval data and electricity bills, visit your site, and identify demand peaks, solar opportunities, and backup requirements.
Detailed Proposal
You receive a written proposal with system sizing, projected demand savings, applicable incentives, and a clear installation scope — no guesswork.
Installation
Our CEC-accredited commercial team installs and commissions your system. We coordinate grid connection approvals and all electrical works in-house.
Monitoring & O&M
Your system is monitored remotely from day one. We offer ongoing maintenance contracts to protect performance and warranty over the system's life.
Why Supply Solar
Accredited, Award-Winning & Fully In-House
Commercial battery storage is a significant investment. These are the credentials that matter when choosing who designs and installs yours.
Industry Recognition
Where We Work
Commercial Battery Storage Near Your Business
Supply Solar installs commercial battery systems across Melbourne and Regional Victoria. Our commercial teams cover metropolitan and regional sites.
What Businesses Say
Verified Reviews from Victorian Businesses
"Supply Solar assessed our site thoroughly, explained exactly which demand periods were costing us the most, and sized the battery around our actual interval data. The whole process was professional from start to finish."
"We had other companies quote us but Supply Solar were the only ones who actually pulled our interval data before proposing a system. That gave us a lot of confidence in their recommendation."
"The battery has delivered exactly what was projected. Our demand charges dropped significantly on the first bill and the monitoring portal makes it easy to see the system performing in real time."
FAQ
Commercial Battery Storage — Common Questions
Also From Supply Solar
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Solar panels for small business, industrial, and strata. CEC-accredited design and installation, STC/LGC eligible.
Learn more →Commercial EV Charging
Fleet, car park, and workplace EV charging infrastructure. AC and DC fast chargers, DRIVEN rebate eligible.
Learn more →Commercial Maintenance & O&M
Monitoring, servicing, and maintenance contracts for commercial solar and battery systems. Thermal scans, output reports, and annual service visits.
Learn more →Ready to Cut Your Business Energy Costs?
Get a free commercial site assessment. We analyse your electricity bills and interval data, then show you what a battery can realistically save your business.