16.64kWh GoodWe Battery Installation In Williamstown, VIC 3016
In Williamstown, Green Electric Solutions completed a residential battery installation featuring 16.64 kWh of GoodWe battery storage and a 5 kW hybrid inverter. The customer received a $3,811 battery STC discount.
How 16.64kWh GoodWe Battery Upgrade For an Existing Solar System In Williamstown
At Green Electric Solutions, our technical team works closely with homeowners to understand their energy consumption, existing solar system, and daily electricity needs before recommending a suitable battery. For this Williamstown property, the home already had rooftop solar panels, so we assessed how additional storage could help make better use of solar-generated electricity beyond daylight hours.
Based on the system requirements, we installed two GoodWe Lynx D G2 battery modules, providing 16.64kWh of nominal capacity and 16kWh of usable storage, paired with a 5kW hybrid inverter. Our approach focuses on matching battery capacity to household needs, ensuring homeowners can make informed decisions about energy storage, system compatibility and potential long-term savings.
| System Component | Installed Specifications |
|---|---|
| Battery Brand | GoodWe Lynx D G2 |
| Battery Model | GW8.3-BAT-D-G20 (2 Modules) |
| Nominal Battery Capacity | 16.64 kWh |
| Usable Battery Capacity | 16 kWh |
| Inverter Brand | GoodWe |
| Inverter Model | GW5K-ETA-G20 |
| Inverter Rated Power | 5,000 W (5 kW) |
| Electrical Configuration | Three-phase |
| Maximum Inverter Efficiency | 98% |
Could You Known?
Green Electric Solutions, based in Altona, offers professional solar and battery system installation services across Victoria within an 80 km radius.
How We Safely and Professionally Installed a 16.64 kWh GoodWe Battery and Hybrid Inverter in Williamstown
At the Williamstown property, our installers fitted a 16.64kWh GoodWe battery alongside a 5kW hybrid inverter, mounted on a concrete wall in a secure, ventilated space. The battery connects to the inverter through dedicated DC cabling, and the inverter ties into the main switchboard through a new protected circuit. We installed a weatherproof isolator beside the switchboard, so the system can be safely shut down for maintenance or emergencies.

A smart energy meter was added to track household usage and solar export in real time. Everything is clearly labelled with the required “ES” energy storage and “PV” solar identification, plus compliance warning signs, so future electricians and emergency crews know exactly what is installed. All work was tested and commissioned to Australian standards.
$3,811 Battery STC Discount In Williamstown Battery Installation
Australia’s solar incentives can turn a major energy upgrade into a more achievable investment. From eligible battery discounts to state-based energy-efficiency schemes, available support can reduce the amount homeowners pay upfront. For homeowners, incentives can significantly influence the upfront cost of installing battery storage. In Williamstown, Victoria, the homeowner’s GoodWe battery installation brought the final cost down to $6,500, with the Battery STC discount.
| Cost Breakdown | Amount |
|---|---|
| Subtotal Including GST | $10,311.00 |
| Battery STC Discount (103 × $37) | −$3,811.00 |
| Total Including GST After Discount | $6,500.00 |
The figures above relate to this installation and should not be treated as a guaranteed price or incentive for every property. Homeowners should confirm the applicable discount and final quotation before proceeding.
Why You Choose Green Electric Solutions For Solar Battery Installation In Williamstown?
Choosing a battery is not simply a matter of selecting the largest capacity available. The system needs to work with the existing solar installation, electrical supply, and household energy requirements. The Williamstown project demonstrates Green Electric Solutions' experience in installing a two-module GoodWe battery system alongside existing rooftop solar, with supporting equipment identification and electrical installation.
For homeowners exploring a solar battery upgrade, the next step is to assess current electricity use, available solar generation, inverter compatibility and the appropriate amount of usable storage. A system properly assessed by Green Electric Solutions can help homeowners make a more informed decision about energy storage, upfront costs and potential long-term benefits.
Why Melbourne Homeowners Choose Us
- REC-Certified Solar Professionals
- SAA-Certified installers
- Solar Victoria Approved
- End-to-end rebate application support
- NET, Solar Victoria & VEU Approved
- GoodWe Approved Solar Installer in Melbourne
- Experienced with end-to-end rebate documentation
Ready to Add a Battery to Your Existing Solar System?
Do you already have solar panels in Williamstown or Melbourne’s western suburbs? A battery could help you store excess solar power and use it when you need it most. Green Electric Solutions will help you today to choose suitable battery options, check available incentives, and request a tailored installation quote.
Contact Us Today
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