Fox ESS Battery Sydney
High-Performance Solar Battery Storage at Sydney's Lowest Cost Per kWh
Fox ESS is one of the fastest-growing residential solar battery brands in Australia and for good reason. Backed by Tsingshan Group, the world’s largest nickel producer, Fox ESS combines serious manufacturing capability with aggressively competitive pricing, making their EQ and CQ battery series two of the most cost-effective home energy storage systems available in Sydney in 2025. At approximately $832 per usable kWh installed one of the lowest figures of any quality LFP battery on the Australian market Fox ESS delivers outstanding performance and value for Sydney homeowners serious about reducing electricity bills and achieving genuine energy independence.
Solar National offers two Fox ESS battery series: the established EQ Series (fully modular, highly scalable, 10-year warranty) and the newer CQ Series (launched January 2026, featuring integrated aerosol fire suppression and an industry-leading 12-year warranty). Both series use proven Lithium Iron Phosphate (LFP) chemistry with 100% depth of discharge and over 95% round-trip efficiency the same safe, thermally stable battery technology found in Tesla Powerwall 3 and GoodWe ESA, but at a significantly lower price point. Whether you’re adding battery storage to an existing Sydney solar system or starting fresh, Fox ESS delivers outstanding solar energy self-consumption, time-of-use tariff optimisation, and reliable battery backup power all managed through the highly regarded FoxCloud 2.0 app.
Solar National is a certified Fox ESS battery installer in Sydney. Our CEC-accredited team designs every Fox ESS installation to maximise your return on investment recommending the right series and capacity based on your energy usage, roof size, future EV plans, and budget. With NSW feed-in tariff rates at just 5–8 cents/kWh, the difference between exporting solar at feed-in rates and self-consuming it at peak tariff rates (30–45 cents/kWh) is enormous and Fox ESS makes capturing that difference as affordable as possible. We handle everything from site inspection and system design through to government rebate paperwork and ongoing after-sales support.
Two Series Which Is Right For You?
Solar National offers both Fox ESS battery series. Here’s how to choose the right one for your Sydney home.
EQ Series Best For Most Homes
The Fox ESS EQ Series is a high-voltage, modular battery system using stackable LFP modules each providing approximately 4.66 kWh of usable capacity. Modules connect via contact plates (no cabling between modules), making the stack installation clean and fast. The EQ series is ideal for Sydney homeowners starting at 14 kWh and scaling to 41.9 kWh as energy needs grow. It’s CEC-approved, federal rebate eligible, and backed by a 10-year product and performance warranty. Note: whole-home backup requires an additional EPS circuit and switchboard modification raise this requirement with your installer upfront.
CQ Series Best For Future-Proof Homes
The Fox ESS CQ Series is Fox’s latest premium residential offering, launched in Australia in January 2026. Designed for homeowners who want the most advanced Fox ESS system, the CQ Series includes integrated aerosol fire suppression, 6,000+ cycles, 100% depth of discharge, and an extended 12-year product and performance warranty the longest battery warranty available from Fox ESS. With storage from 17.9 kWh to 47.9 kWh per stack, the CQ Series is ideal for large Sydney homes, EV owners, and homeowners who want maximum battery capacity and peace of mind.
WHY CHOOSE FOX ESS?
Lowest Cost Per kWh in Sydney
At approximately $832 per installed kWh, Fox ESS offers some of the most competitive battery pricing available in Sydney significantly cheaper than Tesla Powerwall 3, GoodWe ESA, and Sungrow per usable kWh. After the federal battery rebate, net costs are among the lowest of any quality LFP system.
Save on Electricity Bills
95%+ round-trip efficiency means maximum solar energy self-consumption with minimal storage losses. The FoxCloud 2.0 app automates time-of-use tariff optimisation charging from solar during the day and discharging during expensive peak periods at night. Sydney Fox ESS owners consistently report annual electricity bill savings of $1,200–$2,200.
Battery Backup Power Sydney
Fox ESS batteries provide reliable battery backup power during grid outages. The FoxCloud 2.0 app includes a dedicated “Backup Only” mode automatically pre-charging your battery ahead of forecast storms or grid events. EQ backup requires a dedicated EPS circuit; CQ backup is more integrated.
95%+ LFP Efficiency
Both EQ and CQ series deliver over 95% round-trip efficiency using cobalt-free LFP chemistry rated for 6,000+ cycles at 100% depth of discharge. Built to operate reliably across Sydney’s full climate range, from coastal humidity to western Sydney summer heat extremes.
FoxCloud 2.0 Smart Monitoring
The FoxCloud 2.0 app delivers real-time visibility of solar generation, battery level, grid usage, and savings. Includes Home Assistant integration for advanced automation, time-of-use scheduling, and off-peak grid charging setup. Users rate it as one of the most data-rich monitoring platforms available on any residential battery.
12-Year Warranty on CQ Series
The Fox ESS CQ Series carries a 12-year product and performance warranty the longest of any Fox ESS product. Combined with aerosol fire suppression and 6,000+ cycle LFP cells, the CQ Series is built to deliver reliable residential solar battery storage well beyond its warranty period, increasing your property value and energy independence for decades
Technical Specifications
Technical Specifications
EQ Series
- System Type: High-Voltage Modular Battery
- Battery Chemistry: LFP (LiFePO₄)
- Module Capacity: 4.66 kWh usable per module
- Storage Range: 14.4–41.9 kWh per stack
- Depth of Discharge: 100%
- Round-Trip Efficiency: 95%+
- Cycle Life: 6,000+ cycles
- IP Rating: IP65
- Warranty: 10 Years product + performance
- Monitoring: FoxCloud 2.0 App
CQ Series
- System Type: High-Voltage Modular Premium Battery
- Battery Chemistry: LFP (LiFePO₄)
- Storage Range: 17.9–47.9 kWh per stack
- Depth of Discharge: 100%
- Round-Trip Efficiency: 95%+
- Cycle Life: 6,000+ cycles
- Safety: Integrated aerosol fire suppression
- IP Rating: IP65
- Warranty: 12 Years product + performance
- Monitoring: FoxCloud 2.0 App
Installation Process
Solar National is a certified Fox ESS battery installer in Sydney. Most EQ and CQ installations completed in a single day.
Step 1: Free Consultation & Quote Call 1300 179 949 or submit the form below. We’ll recommend the right Fox ESS series and capacity based on your energy bills, existing solar setup, EV plans, and backup power requirements.
Step 2: Site Inspection & System Design We assess your switchboard, electrical layout, and available wall or floor space. If whole-home battery backup power is required, we design your EPS circuit during this stage — ensuring no surprises on installation day.
Step 3: Permits & Approvals Full CEC compliance, DNSP grid connection application, and Federal Government battery rebate documentation all handled by Solar National at no extra charge.
Step 4: Professional Installation Our CEC-licensed team installs your Fox ESS stack, connects it to your solar inverter, commissions the backup circuit if required, and activates the FoxCloud 2.0 monitoring platform. Standard install: 4–8 hours.
Step 5: FoxCloud 2.0 App Setup & Handover We configure your FoxCloud app, set up time-of-use tariff schedules, off-peak charging preferences, and your backup mode so your Fox ESS system is optimised for maximum savings from day one.
Step 6: Ongoing Support & Warranty Solar National provides continued local after-sales support. Fox ESS has a Victorian office with Australian-based technical support. EQ: 10-year warranty. CQ Series: 12-year warranty.
Comparison Table
Comparison
Fox ESS vs Other Batteries
Feature | Fox ESS EQ | Fox ESS CQ | GoodWe ESA | Tesla Powerwall 3 |
Battery Chemistry | LFP | LFP | LFP | LFP |
Efficiency | 95%+ | 95%+ | ~97% | 90%+ |
Built-in Inverter | No | No | Yes | Yes |
Fire Suppression | No | Aerosol | Aerosol | No |
Warranty | 10 Years | 12 Years | 10 Years | 10 Years |
Max Storage | 41.9 kWh | 47.9 kWh | 48 kWh | 540 kWh |
Retrofit Friendly | DC coupled | DC coupled | AC + DC | No |
Depth of Discharge | 100% | 100% | 100% | 100% |
IP Rating | IP65 | IP65 | IP66 | IP67 |
Cost Per kWh | $832/kWh | $850/kWh | $331/kWh | $667/kWh |
Price (Installed) | From $6,500 | From $7,000 | From $8,000 | From $13,950 |
Note: Fox ESS offers outstanding value per kWh for new solar + battery installations. The CQ Series 12-year warranty is the longest available from any Fox ESS product. GoodWe ESA is the better all-in-one option for retrofits; Fox ESS EQ/CQ suits new solar systems paired with a Fox ESS hybrid inverter for maximum efficiency.
Government Rebates
Fox ESS Battery Rebate NSW Save Up To 30%
Both Fox ESS EQ and CQ Series are eligible for the Federal Cheaper Home Batteries Program (active July 2025). Solar National applies the rebate directly to your invoice no paperwork required from you.
Federal Rebate: Up to $372 per usable kWh applied at point of sale. For a 41.9 kWh Fox ESS EQ system, this represents $6,640 in upfront savings.
NSW PDRS: Combine with the NSW Peak Demand Reduction Scheme by joining a Virtual Power Plant for additional upfront savings.
Finance Available: $0 upfront flexible payment plans available. Many Sydney homeowners’ monthly savings on electricity bills exceed their monthly repayment amount.
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PRICING
Fox ESS EQ Series Pricing Sydney
Fox ESS EQ battery price in Sydney starts from just $6,500 installed for 14.4 kWh one of the most affordable quality LFP batteries available. After the federal battery rebate, the 28 kWh system delivers the best net value per kWh of the entire EQ range. All prices include professional installation, Fox hybrid inverter (if required), CEC compliance, FoxCloud app setup, and 10-year warranty. Typical payback period: 4–6 years.
Capacity | Full Price | Govt Rebate | You Pay | Best For |
14.4 kWh | $6,500 | $3,840 | $2,660 | Budget entry/ small homes |
19.2 kWh | $7,000 | $4,640 | $2,360 | Small–medium homes |
24 kWh | $7,500 | $5,440 | $2,060 | Best Value/ Most Popular |
28 kWh | $8,000 | $6,080 | $1,920 | Lowest net cost per kWh |
33 kWh | $9,200 | $6,280 | $2,920 | Medium–large homes |
38 kWh | $10,400 | $6,480 | $3,920 | Large homes |
41.9 kWh | $11,600 | $6,640 | $4,960 | Large homes / EV owners |
Fox ESS CQ Series Pricing Sydney
Fox ESS CQ battery price in Sydney starts from $7,000 installed for 17.9 kWh delivering premium 12-year warranty and integrated aerosol fire suppression. All prices include professional installation, CEC compliance, FoxCloud setup, and 12-year warranty.
Capacity | Full Price | Govt Rebate | You Pay | Best For |
17.9 kWh | $7,000 | $4,440 | $2,560 | Premium entry / small homes |
23.9 kWh | $8,000 | $5,400 | $2,600 | Medium homes |
29.9 kWh | $9,000 | $6,160 | $2,840 | Best Value / Most Popular |
35.9 kWh | $10,800 | $6,400 | $4,400 | Large homes / EV owners |
41.93 kWh | $12,000 | $6,640 | $5,360 | High-usage homes |
47.92 kWh | $14,000 | $6,880 | $7,120 | Off-grid / Maximum storage |
Frequently Asked Questions
Fox ESS EQ battery price in Sydney starts from $6,500 installed for 14.4 kWh ($2,660 after federal rebate). The 28 kWh EQ system at $8,000 ($1,920 after rebate) delivers the lowest net cost per kWh of the entire range. Fox ESS CQ starts from $7,000 for 17.9 kWh ($2,560 after rebate). Contact Solar National for a free quote.
The EQ Series is the established, proven modular system with a 10-year warranty ideal for most Sydney homes. The CQ Series (launched January 2026) is the premium option with a 12-year warranty, integrated aerosol fire suppression, and larger storage options up to 47.9 kWh. If long-term peace of mind is your priority, choose CQ; if maximum value per dollar is your priority, choose EQ.
Yes Fox ESS uses proven LFP chemistry rated for 6,000+ cycles, is CEC-approved and federal rebate eligible, and carries IP65 weatherproofing. The FoxCloud 2.0 app is consistently rated by users as one of the most data-rich monitoring platforms available. While Fox ESS is newer to Australia than Tesla or BYD, hardware quality is rated consistently well by installers with real-world field experience.
Yes but backup power on the EQ series requires a dedicated EPS circuit and additional switchboard work. If battery backup power is important to you, tell us upfront so we can design your system accordingly. The CQ Series has more integrated backup capability. Both series allow you to set “Backup Only” mode via the FoxCloud app ahead of storm events pre-charging your battery for maximum backup runtime.
Fox ESS batteries are primarily DC-coupled, meaning they work best when installed with a compatible Fox ESS hybrid inverter as part of a new solar installation. Adding Fox ESS to an existing AC inverter setup is possible but may add cost and complexity. If you have an existing system, GoodWe ESA or Sigenergy (both AC + DC coupled) may be a simpler retrofit option our team will advise at your free consultation.
Both EQ and CQ Series are eligible for the Federal Cheaper Home Batteries Program providing $3,840–$6,880 depending on capacity. NSW homeowners can also access the PDRS rebate by joining a Virtual Power Plant. Solar National handles all rebate paperwork on your behalf.
Fox ESS’s low pricing and strong rebates deliver one of the fastest payback periods available typically 4–5 years for most Sydney households. With annual electricity bill savings of $1,200–$2,200 and some of the lowest after-rebate costs in the market, Fox ESS delivers outstanding long-term value.
Yes if you’re planning to stay in your home for 10+ years, the CQ’s 12-year warranty provides an extra 2 years of guaranteed coverage beyond the industry standard. Combined with integrated aerosol fire suppression and the peace of mind it brings, the small price premium over the EQ Series is worthwhile for most homeowners.
