If you’ve recently moved to Hoppers Crossing or are considering switching to solar, you’re likely searching for a solution that delivers maximum savings, long-term reliability, and true energy independence. With rising electricity prices across Victoria, many large households and new immigrants settling in Hoppers Crossing want clear answers before investing in solar. A GoodWe 20kW solar system with a 44kWh battery is one of the most powerful setups available for residential homes—but is it right for you? In this real installation case study, we break down costs, performance, savings, and rebates so you can make an informed decision.
If you have questions like these in mind, you’re not alone:
- How many solar panels are required for a 20kW solar system?
- Is a 20kW solar system suitable for large families or high-energy-use homes?
- What is the estimated annual energy production of a 20kW solar system in Hoppers Crossing?
- How much can you save annually on electricity bills with a 44kWh battery?
- What is the cost of a 20kW solar system with battery in Hoppers Crossing after rebates?
- Are Solar Victoria and federal STC rebates available for a 20kW system?
- Is adding a battery worth it with current Victorian feed-in tariffs?
- Why choose a GoodWe inverter and battery for a large residential solar installation?
This installation answers all these questions and shows how homeowners in Hoppers Crossing are future-proofing their energy needs while locking in long-term savings.
20kW Solar System with 44kWh Battery Storage - System Components Overview
For this Hoppers Crossing installation, we selected premium, CEC-approved solar and battery components designed for high performance, safety, and long-term reliability in Australian conditions. The system features high-efficiency Jinko Solar panels, paired with a GoodWe hybrid inverter and high-capacity battery storage, ensuring optimal energy generation during the day and reliable backup power at night. All equipment meets the latest Australian and international standards, delivering a future-ready solution for large households with high energy demand.
| Component Type | Manufacturer | Model | Capacity / Rating | Equipment Quantity | Certification / Standard |
|---|---|---|---|---|---|
| Solar Panels | Jinko Solar Co. Ltd | JKM475N-60HL4-V | 475W per panel | 44 Panels | IEC 61215:2021 |
| Battery Storage | GoodWe Technologies Co. Ltd | LX F22.4-H-20 | 22.4kWh per unit (Total 44kWh) | 2 Batteries | CEC Approved |
| Inverter | GoodWe Technologies Co. Ltd | GW25K-ET | 25kW Hybrid Inverter | 1 Inverter | AS 4777-2:2020 |
SAA-Certified Installation & Workmanship
This GoodWe 20kW solar system with 44kWh battery in Hoppers Crossing was installed by our SAA-Certified solar electricians, ensuring full compliance with CEC guidelines, Australian Standards, and Victorian safety regulations. From initial system design to final commissioning, every stage of the installation was carefully planned and executed to deliver maximum performance, long-term reliability, and complete peace of mind for the homeowner.
Solar Panel Placement & Roof Layout
The 44 Jinko Solar 475W panels were strategically positioned across the roof to achieve the optimal tilt and orientation, maximising solar generation throughout the day. Shading analysis was conducted to avoid performance losses, ensuring consistent energy output across all seasons.

Wiring, Switchboard & Safety Compliance
All DC and AC wiring was installed using UV-rated, Australian-approved cabling, neatly secured to ensure durability and efficiency. The main switchboard was assessed and upgraded where necessary to safely handle the 20kW solar system and 44kWh battery, including proper circuit protection, isolators, surge protection, and safety labelling. Every step was completed to SAA standards, ensuring optimal performance, safety, and long-term reliability.

Battery & Inverter Installation
The GoodWe GW25K-ET hybrid inverter and 44kWh battery system were installed in a well-ventilated, compliant location to support efficient operation and easy future maintenance. The system was fully configured for optimal battery charging, backup capability, and seamless integration with the household’s energy usage.

Rebates & Incentives Availment
At Green Electric Solutions, we don’t just install your solar and battery system—we handle the entire rebate process from start to finish. Our team completed all documentation, applications, and submissions for both Solar Victoria and federal STCs, ensuring the homeowner received maximum rebates without the usual paperwork hassle. This end-to-end service makes switching to solar stress-free while maximising financial benefits.
| Item | Quantity / Value | Amount (AUD) |
|---|---|---|
| Estimated Annual Production | 27,082 kWh | |
| Estimated Annual Savings | $1,730.16 | |
| Government Rebates | 123 STCs @ $38.00 | −$4,674.00 |
| 376 Battery STCs @ $37.00 | −$13,912.00 | |
| Total Government Rebates | $18,586.00 |
Why Choose Green Electric Solutions
We are your trusted solar and energy partner in Victoria, providing premium installations, expert support, and reliable long-term service. Here’s why homeowners across Victoria choose us:
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