The GoodWe ESA 8kW All-In-One System
Video Source: GoodWe
For Perth homeowners looking to achieve serious energy independence, the GoodWe ESA 8kW All-in-One system is currently a top-tier "Power Tower" choice. It combines the "brains" (the inverter) and the "brawn" (the battery stacks) into one sleek, pre-wired cabinet that cuts installation time in half.
In the Perth market, this 8kW setup is commonly paired with 16kWh, 24kWh, or 32kWh of storage. If you are looking at your Synergy bill and wondering which size fits your home, here is exactly how the technical specs break down for these specific configurations.
The 8kW designation typically refers to the power output of the inverter module, which is paired with scalable battery modules - most commonly the high-capacity 8.32kWh module.
Quick Interactive Check: Which size do you need?
- 16kWh: Do you have a standard family home with a gas cooktop? This is your entry point for whole-home backup.
- 24kWh: Do you run a pool pump or have kids who leave every light on? This is the "Goldilocks" size for average Perth families.
- 32kWh: Do you own an EV or run ducted air conditioning all night? This is the heavy-duty option for high-usage homes.
Technical Specifications: 8kW Power Module (Inverter)
The system is available in both single-phase and three-phase configurations. Below is the specific technical data for the 8kW inverter options within the ESA Series.
| Features | Single Phase (GW8K-BHA-G20) | Three Phase (GW8K-ETA-G20) |
|---|---|---|
| Rated Power | 8.0 kW | 8.0 kW |
| Max. Charging Power | 12.0 kW | 8.0 kW |
| Max. Discharging Power | 8.8 kW | 8.8 kW |
| Max. PV Input Power | N/A (AC Coupled) | 16.0 kW |
| Number of MPPTs | N/A | 3 |
| Max. Efficiency | 97.5% | 98.0% |
| Backup Switching Time | <10 ms | <4 ms |
| Nominal AC Voltage | 220/230/240 V | 380/400 V |
| Ingress Protection | IP66 | IP66 |
| Weight | 26 kg | 34 kg |
| Noise Emission | ≤35 dB | ≤30 dB |
Technical Specifications: 8.32kWh Battery Module
The GW8.3-BAT-D-G20 is the high-voltage battery module used to build the storage capacity of the 8kW ESA system.
| Specification | Details |
|---|---|
| Model Name | GW8.3-BAT-D-G20 |
| Battery Type | Lithium Iron Phosphate (LiFePO4/LFP) |
| Rated Energy | 8.32 kWh |
| Usable Energy | 8.0 kWh |
| Nominal Voltage | 380 V |
| Operating Voltage Range | 350 V - 550 V |
| Max. Charging/Discharging Rate | 1C (8 kW) |
| Peak Output Power | 12 kW (10 seconds) |
| Cycle Life | ≥8000 cycles |
| Operating Temperature | -20°C to 55°C |
| Dimensions (W x H x D) | 800 x 326 x 270 mm |
| Weight | 79 kg ± 1 kg |
Comparing the Battery Packages (16kWh, 24kWh, 32kWh)
| System Capacity | 16kWh Package | 24kWh Package | 32kWh Package |
|---|---|---|---|
| Number of Modules | 2 Modules | 3 Modules | 4 Modules |
| Total Usable Energy | 16.0 kWh | 24.0 kWh | 32.0 kWh |
| Max Output (System) | 8.0 kW | 8.0 kW | 8.0 kW |
| Peak Output (10s) | 16.0 kW | 16.0 kW | 16.0 kW |
| Total System Weight | ~175 kg | ~254 kg | ~333 kg |
| System Footprint | 800 x 270 mm | 800 x 270 mm | 800 x 270 mm |
Key Performance and Safety Features
- Whole-Home Backup: The system supports full-home backup with 63A passthrough capability, eliminating the need for additional gateway devices.
- Modular Scalability: Users can start with a single 8.32kWh module and expand up to 6 modules per tower (48.32kWh usable energy). Multiple towers can also be connected in parallel.
- Rapid Energy Cycling: The 1C charge and discharge rate allows for fast energy cycling, which is maintained even in cold conditions thanks to an integrated heating mode.
- Advanced Safety: The system features six-layer safety protection, including integrated aerosol fire suppression and AI-driven AFCI 3.0 for arc fault prevention.
- Smart Management: Real-time visibility and control are provided through the GoodWe SEMS portal and app, which supports dynamic tariff optimization via an AI-driven Energy Management System (EMS).
Fusion Sun Solar: Your Trusted Guide to WA Solar Battery Rebate Benefits
We at Fusion Sun Solar recognize the value of making the rebate process simple and stress free. contact us now and get all the benefits of WA solar battery rebate.
Address: The Garden Office Park, Level 2, Building C, 355 Scarborough Beach Road, Osborne Park, Perth, WA 6017
Phone: (08) 6275 9000
Email: [email protected]
Map Link: maps.app.goo.gl
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Frequently Asked Questions
Are there any specific WA rebates I can claim?
Yes. Perth residents may be eligible for the WA Residential Battery Scheme. Approved vendors like Fusion Sun Solar can apply a point-of-sale discount, which has been cited as $130 per usable kWh (up to 10kWh). To qualify, you typically must join a Virtual Power Plant (VPP) like Synergy or Plico. Additionally, the system is eligible for the Federal Battery Rebate (Cheaper Home Batteries Program), which can offer significant savings until December 31, 2026.
Can the 8kW system back up my entire home during a Perth blackout?
The 8kW ESA system features 63A internal bypass passthrough, which is designed to support whole-home backup without requiring additional gateway hardware. It offers a seamless transition to backup power in less than 4ms to 10ms. However, "output-limited whole-home protection" may involve an additional electrical configuration cost depending on your property's specific wiring. The Fusion Sun Solar team can evaluate your home to advise on the optimal setup.
How does the system handle Perth's extreme summer heat?
The GoodWe ESA is IP66-rated, meaning it is dust-tight and protected against powerful water jets, making it suitable for outdoor installation in WA. While it uses natural convection (fanless) cooling for quiet operation (<30dB-35dB), we highly recommend placing the unit on a South-facing wall or inside a garage to prevent "derating" (power throttling) during 40°C+ Perth summer days.
What is the technical name for the 8kW model?
Depending on your home's power supply, the technical name for the 8kW inverter module is:
- Single-Phase: GW8K-BHA-G20 (AC-Coupled) or GW8K-EHA-G20 (Hybrid).
- Three-Phase: GW8K-ETA-G20.
The high-voltage battery module typically paired with these is the GW8.3-BAT-D-G20.
Can I install this on a standard Perth patio or deck?
Probably not. A fully loaded ESA tower with multiple 8.32kWh modules is a "monolith" that can weigh over 400kg to 475kg. Because of this extreme weight, it cannot sit on timber decks or standard pavers; it requires a reinforced concrete slab or plinth for a safe, stable installation. Fusion Sun Solar ensures that all installations strictly adhere to structural and safety guidelines.