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2026- Battery Systems Comparison, Sigenergy vs GoodWe ESA vs Deye vs Cygni vs RUIXU image
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Markw
The Ultimate 2026 Home Battery Guide: Comparing Sigenergy, GoodWe, Deye, RUIXU and More Before the Rebate is reduced

Part 1: The Federal Rebate “Double Squeeze” & The February-March Deadline

Title Idea: The Ultimate 2026 Home Battery Guide: Comparing Sigenergy, GoodWe, Deye, RUIXU and More Before the Rebate Drop

The “May 1st” Reality Check

If you’ve been considering a home battery in Australia, the clock is no longer just ticking—it’s racing. On May 1st, 2026, the Federal Government’s Cheaper Home Batteries Program undergoes its most significant change since inception. We are facing a “Double Squeeze”:

  1. The STC Factor Drop: The multiplier drops from 8.4 to 6.8.
  2. Size Tapering: For the first time, rebates will be tiered. You get 100% of the rebate for the first 14kWh, but that drops to 60% for anything between 14-28kWh, and a measly 15% for capacity above 28kWh.

Why February 28th is your real deadline: While the rules change in May, the rebate is based on the installation date, not the order date. With Australian installers currently facing 8-12 week lead times, any order placed after February 28th risks missing the May 1st cutoff, potentially costing you over $5,000 in lost incentives.

The Contenders: Individual System Reviews

1. Sigenergy SigenStor (10kW / 40kWh)

The Innovation Leader

The Sigenergy SigenStor is the world’s first “5-in-one” system. It integrates the inverter, battery, and even an optional DC EV charger into one stack. Its pricey, but the software is attractive and functional.

  • The Tech: It uses 8kWh modules with high-grade 280/314Ah cells. Its standout feature is V2X (Vehicle-to-Everything) readiness, allowing your future EV to power your home.
  • Safety: It includes “Sigen Shield,” an internal aerosol fire suppression system in every module.
  • Best For: Premium homeowners who want the most advanced, “Apple-like” experience and are planning for an EV (that needs ultra fast recharging at home or business)
  • Considerations Sigenergy is premium, and may have a very long payback period, sometimes over 10 years. Other battery systems offer superior payback and therefor value in majority of cases.

2. GoodWe ESA Series (9.99kW / 40kWh)

The Reliable Workhorse

GoodWe has been a staple in the Australian market for over a decade. The ESA is their “all-in-one” tower designed for simplicity and massive backup power.

  • The Tech: It features a 63A bypass, meaning it can back up almost an entire home without needing a complex external gateway. It boasts a UPS-level switching speed of under 4ms.
  • Best For: Families where “keeping the lights on” during a blackout is the #1 priority.
  • Safety – ESA includes internal aerosol fire suppression at the module level
  • Compare with – Sigenergy, minus the mostly unnecessary DC charger, which is in many cases not worth the cost, to discuss why, call us directly on 07 4191 6815

3. Dyness Cygni (10kW / 46.08kWh)

The Value/Capacity Specialist

Dyness has carved out a niche by offering high-density storage that is remarkably easy to scale.

  • The Tech: The Cygni uses a 1C charge/discharge rate, meaning it can fill or empty its entire capacity in just one hour—ideal for capturing rapid solar spikes or handling heavy evening loads.
  • Best For: Large properties with high energy demands that need maximum storage for a mid-range price. Space saving design, good for on-grid users, installing indoors.
  • Considerations – Being Mid tier, there can be better value, or better quality found elsewhere, depending on your own circumstances, for a more tailored system, tell us everything you can about your usage and future plans, call on 07 4191 6815 now.

4. Deye AI-W5.1-B (10kW / 30.74kWh)

The Smart Manager

Deye is beloved by tech enthusiasts for its incredibly flexible “Smart Load” port.

  • The Tech: This system allows you to divert excess solar to specific appliances (like a pool pump or hot water) only when the battery is full, without needing extra external controllers.
  • Best For: Users who want to “micro-manage” their energy and achieve the fastest possible ROI through smart self-consumption.

5. Deye 10kW LV + RUIXU Lithi2-16 (48kWh)

The “Tank” System.

By pairing a Deye 10kW Low Voltage inverter with RUIXU Lithi2-16 units, you create an industrial-grade powerhouse. These Inverters are extremely reliable, which is why we choose them almost every time for off-grid users. However, they are also good for on-grid users with high energy demands.

  • The Tech: Since this system uses a DEYE inverter, this allows you to divert excess solar to specific appliances (like a pool pump or hot water) only when the battery is full, without needing extra external controllers.
  • The RUIXU batteries are rated for 9,500+ cycles. Most competitors offer 6,000. These batteries feature built-in heaters for cold climates (very important for places where the temperature drops under a few degrees celcius, and individual LCD touchscreens for manual monitoring.
  • Safety: It also includes an internal aerosol fire suppression system in every module/battery.
  • Best For: The “forever home.” Especially off-grid, This system is built for longevity and massive daily cycling.

6. Anker Solix X1 (10kW / 30kWh)

The Climate Survivor

Anker, a global leader in portable power, has entered the home market with a system designed for harsh environments.

  • The Tech: It is IP66 rated and features a C5-M anti-corrosion coating. More importantly, it can output full power at 55°C, whereas many other batteries “derate” (slow down) once they hit 40°C. The Anker Solix X1 is equipped with an active cooling system, (fans)
  • Best For: Coastal homes or scorching inland areas like Western Australia or Queensland.

Part 2: The Direct Comparison & Financial Verdict

Performance Comparison Table

SystemBest ForStorage (kWh)Max PowerWarrantyKey Differentiator
SigenergyFuture-Proofing40.010kW10 YearV2X / EV Integration
GoodWe ESAWhole-Home Backup40.010kW10 Year63A Bypass / UPS Speed
Dyness CygniRaw Capacity46.110kW10 Year1C Charge/Discharge Rate
Deye AI-WSmart Control30.710kW10 YearSmart Load Port / Flexibility
Deye + RUIXUExtreme Longevity48.010kW10 Year9,500+ Cycle Life
Anker SolixHarsh Climates30.010kW10 Year55°C Temp / IP66 Rating

The Financial Impact: Buy Now vs. Post-May 1st

Because these systems have large capacities, they are hit hardest by the new Size Tapering rules. After May 1st, any capacity over 28kWh receives only 15% of the standard rebate.

SystemPrice Today (Approx)Est. Rebate Loss (after May 1)Total Cost Increase
Deye + RUIXU (48kWh)$14,000$5,576$19,576
Dyness Cygni (46kWh)$15,000$5,314$20,314
Sigenergy (40kWh)$17,592$4,418$22,010
GoodWe ESA (40kWh)$15,000$4,418$19,418
Deye AI-W (30kWh)$12,000$3,364$15,364
Anker Solix (30kWh)$16,000$3,256$19,256

Final Recommendation

  • If you want the best “Dollar per kWh”: The Deye + RUIXU combo is unbeatable. For $14,000, you are getting nearly 50kWh of industrial-grade storage. However, this system stands to lose the most ($5,576) if you miss the deadline.
  • If you want the best Technology: Sigenergy is the choice for those who want their home to be EV-ready and AI-optimized.
  • If you want Peace of Mind: The GoodWe ESA offers a proven Australian track record and the most robust backup performance.

Action Plan:

To ensure you qualify for the current rebate (which effectively pays for 30% of your system), you must have your installation complete before May 1st. We recommend finalizing all orders by February 28th to allow for the mandatory 2-month installation and grid-approval window.

News Sodium Ion
Markw ,
Why Natron Energy Collapsed

What happens when mass manufacturing and scale disrupts new and sometimes better technology for niche applications

Inside the $1.4B Battery Dream That Died Overnight

Just one year after announcing a $1.4 billion sodium-ion battery gigafactory that promised 1,000 high-wage jobs in rural North Carolina, Natron Energy is gone.

On September 4, 2025, the 13-year-old California startup shut down all operations, laid off its entire workforce of ~95 employees, and abandoned plans for what was to be one of the largest sodium baed clean-energy investments in the USA

The news hit like a shockwave — not just for the workers in Michigan and California, but for state officials who had already approved $56.3 million in incentives (none of which were paid).

So what went wrong?

In this deep-dive investigation, we uncover the real reasons behind Natron’s collapse — from frozen investor payments and policy shifts to manufacturing economics and a fatal mismatch between innovation and market timing.

The Final Days: A Desperate Search for Cash

According to internal documents and interviews, Natron’s board made the final call on August 27, 2025: fundraising efforts had failed.

“Natron’s efforts to raise sufficient new funding were unsuccessful, having failed to result in sufficient funding proceeds to cover the required additional working capital and operational expenses.”
— Elizabeth Shober, Head of Team & Talent, in letter to Michigan labor officials

The company had been in survival mode for months:

  • Existing investors — including Chevron, United Airlines Ventures, and Khosla Ventures — froze scheduled payments starting in June 2025.
  • A Series B round was pitched but never closed.
  • Debt financing talks collapsed.
  • Even a last-ditch asset sale (via California advisory firm Sherwood Partners) came too late.

By late August, Natron had only $25 million USD in booked orders — mostly for data center backup power — but couldn’t fulfill them. Certification delays (UL 1973) and the looming 60-day WARN Act layoff notice created a death spiral:
no delivery → no revenue → no investor confidence → no lifeline.

CEO Colin Wessells stepped down in December 2024 — citing the “all-consuming” burden of fundraising. His departure was an early warning sign.

The Cost Conundrum: BOM vs. Reality

Natron’s sodium-ion batteries were built on a compelling promise: cheaper, safer, more sustainable than lithium-ion.

Using Prussian blue electrodes and abundant materials like sodium, aluminum, iron, and manganese, the company avoided lithium, cobalt, and nickel entirely. No rare earths. No geopolitical risk.

ComponentNatron (Sodium-Ion)Lithium-Ion (LFP)
CathodePrussian blue (Fe, Mn, Na)Lithium iron phosphate
AnodeHard carbonGraphite
ElectrolyteSodium salt in organic solventLithium salt
Projected BOM Cost (2030)$10/kWh (grossly exaggerated)$40–60/kWh

But here’s the catch: low energy density (~50 Wh/L vs. 300 Wh/L for Li-ion) meant Natron’s batteries were only viable for power-dense applications like grid or data centre stabilization and or possibly fast-charging stations — not EVs or consumer devices. The reality was, they were heavy, and huge. And over time, the price of Lithium based batteries fell so quickly, that most technology has been put out of business.

China dominates battery manufacturing, overnight in december 2024, CATL announced a 50% price drop for LFP batteries at the cell level. From around $100 per kWh to $50 per kWh. This price is wholesale, without any retail margins, so its not the true cost, but it gives you an idea, of the power they can weild, this also affected many other chinese companies, such as Gotion, but this decision also completely wiped out all the planned factories across the globe, some in the USA, and some in Australia who had been budgeting for $100 a kWh, they now had no future.

China is not messing around, this is a fight that without mega Billions of dollars, supply chains and the highest level of automation, the competiting countries have no chance of getting off the ground.

And while long-term BOM costs looked promising, scaling manufacturing was brutally expensive:

  • Retrofitting the Michigan plant cost $40 million.
  • The North Carolina gigafactory was budgeted at $1.4 billion — 40x the Michigan site’s capacity.
  • Upfront system costs were higher than Li-ion initially, with savings only over 50,000+ cycles.

Even with $35/kWh IRA tax credits, the math didn’t work without massive volume — and volume required capital Natron no longer had.

Market Timing: The Lithium Price Crash

In 2022, lithium carbonate hit $80,000/ton. Sodium-ion looked like the future.

By 2025? Under $10,000/ton. A 70%+ collapse.

Suddenly, lithium iron phosphate (LFP) batteries — already dominant in China — became cheaper than ever. Data centers and utilities asked: Why switch to an unproven chemistry?

Natron’s niche advantage evaporated.

The Full Breakdown: Why Natron Failed

FactorImpactOutcome
Frozen Investor PaymentsChevron, United, Khosla halted funds in June 2025Cash runway ended
Policy ShiftReduced federal support under Trump admin; ARPA-E grants stalledLost goodwill funding
Certification DelaysUL 1973 blocked $25M in ordersNo revenue to show investors
Lithium Price Crash70% drop eroded cost edgeCustomers stayed with LFP
High CapEx for Low-Density Tech$1.4B factory for power-focused batteriesToo risky without scale
China Dominance~100% of global sodium-ion capacityU.S. startups outgunned

What’s Next for Sodium-Ion?

Natron’s collapse is not the end of sodium-ion technology.

Experts like those at Mana Battery call it “very specific to Natron” — citing execution missteps, niche focus, and bad timing. Others, like Bedrock Materials and Peak Energy, are still advancing sodium-ion with smaller, grid-focused strategies.

China already has over 10 GWh of sodium-ion capacity online. The chemistry works. The market exists.

But Natron’s story is a sobering reminder: in clean energy, innovation alone isn’t enough. You need capital, timing, policy, and customers — all aligned.

North Carolina’s Kingsboro megasite is back on the market.
State officials call it “one of the top megasites in the country.”
This was its second major flop in seven years.

Sources & Further Reading

  • WRAL News – Original closure announcement
  • Battery industry reports (2024–2025): Mana Battery, BloombergNEF, ARPA-E
  • Internal Natron documents via Michigan WARN Act filings
  • Interviews with former employees and industry analysts

News Blog
Markw
Differences in Internal Resistance between LFP manufacturers and cell models

Overview of LFP Prismatic 314Ah Cells

Lithium Iron Phosphate (LiFePO4 or LFP) prismatic cells in the ~314Ah capacity range are popular for energy storage systems (ESS), electric vehicles (EVs), and solar applications due to their safety, long cycle life (often 4,000–8,000+ cycles), and stable voltage plateau around 3.2V. These cells share similar dimensions (typically ~174mm x 72mm x 207mm) and chemistry but differ in design optimizations, leading to variations in performance metrics like internal resistance (IR).

Observed IR values (EVE MB31 ~0.18 mΩ, LF304 ~0.15 mΩ, REPT ~0.23 mΩ) align closely with manufacturer specifications and real-world testing. Note that IR is typically measured as AC impedance at 1 kHz (per industry standards) and can vary ±0.05 mΩ due to factors like temperature, state of charge (SOC ~30–50% for fresh cells), and measurement tools. Lower IR generally means better efficiency (less heat, higher discharge rates), but all these values are low for 314Ah LFP cells, indicating high-quality Grade A (or HSEV/EV-grade) products.

Confirmed Internal Resistance Specs

Based on official datasheets and verified seller data:

Manufacturer/ModelNominal CapacityInitial IR (AC, 1 kHz)Typical Real-World RangeCycle Life (0.5C/0.5C)Key Notes
EVE MB31314Ah≤0.18 mΩ (±0.05 mΩ)0.16–0.23 mΩ≥8,000 cyclesNewer high-density evolution of EVE’s 304Ah line; optimized for ESS with low heat generation. Tested capacities often exceed 330Ah.
EVE LF304304Ah≤0.15 mΩ (±0.05 mΩ)0.14–0.20 mΩ≥4,000 cyclesOlder high-power model; slightly lower capacity but prioritized for EV/high-discharge apps. IR can appear lower due to thicker electrode coatings.
REPT (CB75/CB71)314Ah≤0.23 mΩ (±0.05 mΩ)0.20–0.25 mΩ≥8,000 cyclesFocuses on “Wending” tech for space efficiency; higher IR but excellent thermal stability and 95%+ efficiency at 0.5P discharge.

These values come from EVE and REPT official datasheets, with real-world ranges from independent tests (e.g., DIY solar forums and battery resellers). The LF304’s lower IR reflects its design for power delivery, while REPT’s slightly higher value trades off for enhanced safety and longevity in stationary storage.

Why Variations in Internal Resistance Between Manufacturers?

Internal resistance in LFP cells arises from ohmic (electrolyte/connector) and polarization (electrode/ion diffusion) components. While all LFP cells use the same base chemistry (LiFePO4 cathode, graphite anode, liquid electrolyte), manufacturers like EVE and REPT optimize differently, leading to IR differences of 0.03–0.08 mΩ. Here’s a breakdown of key factors:

  1. Electrode Design and Material Choices:
    • Particle Size and Coating Thickness: Finer cathode particles or thinner coatings (e.g., EVE LF304’s high-power focus) reduce ion diffusion paths, lowering polarization resistance (~0.10–0.15 mΩ contribution). REPT’s “double-high” solid-liquid interface uses coarser particles for stability, slightly raising IR but improving cycle life.
    • Tab Configuration: More/wider current collectors (tabs) shorten electron paths. EVE MB31 uses stacked/wound hybrids with more tabs, achieving ~0.18 mΩ. REPT’s top-to-bottom “Wending” tech maximizes space but can add ~0.05 mΩ due to longer internal paths.
  2. Manufacturing Processes and Quality Control:
    • Assembly Uniformity: Variations in electrode alignment, electrolyte filling, or welding introduce inconsistencies. EVE’s highly automated lines yield tighter IR tolerances (±0.05 mΩ), while REPT emphasizes safety testing, which may allow a broader range.
    • Grade and Sorting: All are Grade A, but “HSEV” (high-safety EV) variants (common for these) are sorted for low IR. Subtle batch differences (e.g., electrolyte additives for thermal runaway prevention) can shift IR by 10–20%.
  3. Optimization Trade-Offs for Application:
    • Power vs. Energy Focus: LF304 (EVE) targets EVs with high C-rates (up to 1C continuous), needing ultra-low IR for minimal voltage sag. MB31 balances ESS longevity. REPT prioritizes stationary storage, where higher IR is acceptable for better abuse tolerance (e.g., overcharge resistance up to 270°C).
    • Energy Density Enhancements: Higher-density cells (e.g., MB31’s 173 Wh/kg) pack more active material, potentially increasing resistance slightly if not offset by innovations like REPT’s 7%+ space utilization boost.
  4. Measurement and Environmental Factors:
    • Test Conditions: Specs use fresh cells at 25°C and ~30% SOC. Real measurements (e.g., your 0.23 mΩ for REPT) may vary with tools—use a 1 kHz AC meter for accuracy. Temperature swings (±10°C) can change IR by 20%.
    • Aging and Degradation: IR rises ~50–150% over life (faster in LFP than NMC), but your values suggest new cells.

Overall, these variations (20–50% relative difference) are normal and don’t indicate defects— they’re engineered for specific strengths. For ESS, REPT’s higher IR means ~2–5% more heat at 0.5C but superior safety. EVE’s lower IR suits high-draw apps like inverters.

Recommendations

  • Matching Cells: For packs, match IR within 0.05 mΩ to avoid imbalances (use a calibrated meter like YR1035+).
  • Testing: Discharge at 0.2C to verify capacity (>310Ah expected) and monitor IR over cycles.
  • Sources: Download full datasheets from EVE/REPT sites or resellers like GobelPower for curves. For comparisons, check ECO Teardown’s aggregated specs.

Conclusion

Not all LFP cells are made equally, they are optimised for slightly different applications. We choose the best balance and allow you to make a decision based on these factors.

In most cases, using EVE or REPT for the high majority of cases, will make little difference, but for small 12v inverter applications attached to a 3000w Inverter, EVE LF304 might be most suitable if you are looking for high power continuous applications, Either way its likely you will see thousands of cycles .

In reality, most people size their battery appropriately if budget allows, we would recommend 2 x 12v 314ah batteries for those looking to pull 3000w regularly, this might be for cooking, microwaves or even small Air conditioning systems.

Cornex Factory
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Markw
Who is Cornex – Is it the next EVE, CATL or REPT ?

What is Cornex

  • CORNEX is a China-based battery manufacturing & technology company focused on lithium-ion batteries.
  • Their product lines include traction batteries (for EV, commercial vehicles, construction machinery etc.), energy storage systems (ESS), and energy management systems.
  • Their R&D spans multiple chemistries and product types: lithium-ion, solid-state, sodium-ion, LMFP (Lithium Manganese Iron Phosphate), cylindrical cells etc. en.cornexbattery.com

Manufacturing, Scale & Technology

Factory / Plants & Capacity

  • They have three main bases in Xiaogan, Wuhan and Yichang.
  • Their effective production capacity (as of recent reporting) exceeds 100 GWh.
  • They have mass production capabilities for advanced battery cells: for example, the 472Ah energy storage cell started mass production in Xiaogan.

Technology & Manufacturing Efficiency

  • Their “smart factory” / intelligent manufacturing approach aims to use high automation (automation rate >98%), digitalization (tracking from materials to sale), and AI, big data, cloud, VR/AR for process monitoring
  • They claim “less than 5,000 m² plant area per GWh” of capacity, which is a measure of land/space efficiency.
  • Their R&D output is considerable: thousands of patents filed globally, dozens of products, many certifications.

Recent Breakthroughs & Products

  • 472Ah battery cell: Mass production underway. Some specs: ~1,510.4 Wh per unit, energy density ~195 Wh/kg. Also high cycle life (15,000 cycles at 35°C).
  • 688Ah ES (Energy Storage) battery cell: A super-large capacity cell, with volumetric energy density exceeding 430 Wh/L, gravimetric nearing 200 Wh/kg. Over 10,000 cycles, safety features like double-sided ceramic separators etc.
  • Their containerized-storage systems (e.g. “M5” 5MWh 20-foot container) for large energy storage applications. en.cornexbattery.com

Available Products

Currently the 100ah, 200ah and 314ah are the products we will be most interested in. Specifically we like the 314ah cell. It offers a EVE or CATL quality product, with high cycle life and great internal resisitance. This cell offers us a price advantage of about $200 per battery, Which may not sound like much, but at the same quality, its a no brainer, if competition in the area is weak, then EVE may not choose to be competitive which puts us all at a disadvantage in the future. We have found that EVE is now commanding a premium price, and the value is not true.

You can think of this like Duracell vs Energizer vs eveready in AA batteries if they all make a 100% equivalent battery product, and they last for the same or better, then its no longer an intelligent choice to preference a brand over the quality and value. Competition is important and so we will be looking for your support while we take Cornex product and use it regularly to ensure competition in the industry.

314 Ah Cell (Conergy π 314Ah / PF173-314A)

This is one of Cornex’s flagship cells for energy storage (ESS) applications.

Key specifications:

ParameterTypical / Market Spec
Nominal Voltage~ 3.2 V
Capacity~ 314 Ah
Internal Resistance≈ 0.17-0.19 mΩ
Cycle Life~ 8000 cycles (to ~80-65 % capacity, depending on spec)
Charge / Discharge RatesStandard 1C / some pulse up to ~2C (short bursts) in some specs; continuous discharge is modest.
Temperature PerformanceDischarge: -20 °C to ~ 55 °C; Charge: 0-55 °C
Physical Size / Weight~5.5-6 kg; dimensions ~ 174.4 × 71.5 × 207.2 mm

What makes the 314 Ah special / strengths:

  • High capacity per cell → fewer cells needed for a given ESS capacity, savings in BMS, interconnects, weight per kWh.
  • Low internal resistance → less voltage drop under load, better efficiency, less heat.
  • Good cycle life (8,000+ cycles) helps with lifespan and lower cost per cycle.

Strategic Moves & Competitive Position

  • Cornex is executing a dual strategy: ESS + EV batteries. So not just large stationary storage, but also vehicle traction batteries.
  • They are moving into or expanding in overseas markets: They have technical/service networks in ~15 countries/regions.
  • They have secured major EV battery contracts, e.g. over 30 GWh nomination from Dongfeng Liuzhou Motor.
  • They are pushing safety, green-manufacturing credentials: designated a “National-Level Green Factory” by China’s MIIT.

Price & Value Edge / What Gives Them Advantage

From the data, here are the levers that seem to give CORNEX an edge in price / cost versus value:

  1. Scale: With >100 GWh capacity, large plants, mass production of advanced cells, they get larger economies of scale. Fixed costs get spread over more output.
  2. Efficiency / Automation / Digitalization: Very high automation, smart factory technologies reduce labor cost, defect rates, improve yield. Tracking materials → less waste, better process control.
  3. Technological Innovation: Their newer products (472Ah, 688Ah, etc.) boost energy density, cycle life, and capacity per cell & per container, which helps reduce $/kWh over life. Similarly features like “cathode pre-lithium,” “high-temperature durability” help add value.
  4. Space and Land Efficiency: Claiming less plant area per GWh is a sign of cost savings in land, infrastructure.
  5. Green credentials / regulatory compliance: Being certified “green factory,” meeting often tight safety and environmental standards helps them in both domestic regulation and overseas tenders (where safety / environmental compliance can be part of the cost). Adds value to customers.
  6. Integrated supply / localization: Their R&D across multiple chemistries, in multiple product types, their strong IP position, and a broad product portfolio means they can serve many segments, adapt to demand, potentially reduce supply chain risk.
  7. Speed to market & continuous iteration: Example: They take existing 314Ah lines, use “technology reuse + shared capacity” to faster develop 472Ah. So leveraging existing manufacturing investment rather than building totally new lines for each innovation.

Possible Weaknesses or Challenges (for balance)

To round out the picture, also useful to think of what could limit them:

  • Battery raw materials (lithium, cobalt, etc.) are globally volatile; cost increases can eat margin even for large players.
  • Overseas competition is intensifying (CATL, BYD, other Chinese battery firms, as well as international players). So staying ahead in R&D, safety, and regulations is critical.
  • For exports, ensuring that certifications (UL, IEC, safety, environmental) are all in place can slow things or add cost.
  • Logistics and localization costs (shipping heavy battery systems, or assembling in overseas markets) can erode advantages.
  • Long-term safety and degradation are always concerns; promises like “15,000 cycles at 35°C” need long-term tests and customer trust.
Battery Installer
News
Markw
We need solar and battery installers

We need solar and battery installers please contact us if you are interested in working with us, to power Australians with good value, high quality batteries and solar systems

Typical CEC Systems

Hybrid Inverter
5kw-16kw (Single Phase) or 5-30kw (Three Phase)
CEC Approved batteries

Some of our most popular are
RUIXU 16kWh batteries – here
Dyness Powerbox Pro – here
Other batteries including High Voltage from various manufacturers

Please fill out this form if you are SAA qualified and have an interest in becoming a partner with us.

Solar and Battery System Installer Application Form

News Blog
Markw , ,
Who is Deye?

Who is Deye? And what makes them special?

Deye is a leading manufacturer of high quality renewable energy solutions, they really have taken the market by storm in the last 5 years in Australia. The products we absolutely love here in at LiFePO4 Australia is the range of SUN Hybrid Inverters. Starting at just 5000W single phase 48v LV right up to the 16kW single phase LV model which really is groundbreaking.

Deye also makes products for SunSynk and Sol-Ark, along with NoArk who has the products in Australia.

Origins, corporate structure & listing

Deye grew out of Ningbo Deye Technology, a diversified appliance and climate-tech manufacturer founded in 1990 in Ningbo, Zhejiang. In 2007 it spun up Ningbo Deye Inverter Technology to focus on PV power electronics and later energy storage (ESS).

What Deye builds: the product families

1) SUN-series hybrid inverters (residential & C&I)

  • Single-phase 48 V (LV): e.g., SUN-5-16K-SG0(x)LP1-AU variants
  • Three-phase 48 V (LV): SUN-5/6/8/10/12K-SG04LP3-AU for Australia
  • Three-phase high-voltage (HV): Various models from 5K up to 100K

Single Phase Hybrid LV (48v Battery)

Big Residential Hybrid LV Inverters

Three Phase Hybrid LV (48v Battery)

Batteries

  • Rack – IEC listed (good when no rebates are applicable
  • Stack – CEC approved (rebates)
  • Wall Mount CEC approved (rebates)

Recommended products

Deye is a vertically-integrated Chinese manufacturer that evolved from climate appliances into a full-stack PV-plus-storage supplier. The SUN-series hybrids earned a following by combining feature-dense controls (parallel/off-grid/AC-couple/genset support) with 48 V battery friendliness and region-specific compliance. For Australian projects in 2025, the critical checks are: current AS/NZS 4777.2 Amd 2 compliance, presence on CEC/CER-maintained approved lists, and battery-BMS compatibility per the latest Deye tables. That diligence preserves rebate eligibility, simplifies commissioning, and ensures the hardware behaves exactly as your design expects.

Who is Deye?

Worlds Largest Single Phase Low Voltage Hybrid Inverter

News
admin , ,
EVE Unveils largest LiFePO4 MB56 Technology yet! 836kWh Split-Type Modular Cabinet

The future of energy storage is here, and it’s bigger than before! At the recent SNEC 2025 exhibition, industry giant EVE Energy unveiled a suite of groundbreaking LiFePO4 battery solutions that are set to revolutionize the commercial and industrial energy storage landscape. Such as the 836kWh Split-Type Modular Cabinet, built around the MB56 628ah LFP cell. For Australian businesses looking to gain a competitive edge in the renewable energy sector, this is an opportunity you won’t want to miss.

17503818078252741
on the right you can see the 836kWh Split-Type Modular Cabinet

Introducing the 836kWh Split-Type Modular Cabinet

At the forefront of this new lineup is the 836kWh Split-Type Modular Cabinet. This innovative system is specifically designed for overseas markets and is perfectly suited for Australian commercial and industrial applications. Here’s what makes it a game-changer:

  • Modular and Scalable: The system is incredibly flexible, with a modular design that can be configured in various ways. It’s compatible with both 1000V and 1500V systems and can be expanded up to an impressive 5MWh. This means it can be tailored to meet the specific needs of your project, from small-scale commercial to large-scale industrial.
  • Overcoming Logistical Hurdles: One of the biggest challenges with large-scale energy storage is transportation and installation. EVE has solved this with an innovative split-design, allowing for more flexible deployment. This clever design not only overcomes logistical limitations for large cabinets but also increases energy density by 65% and reduces the system’s footprint by 37%.
  • Enhanced Safety and Intelligent Operation: Safety is paramount, and the 836kWh cabinet delivers. It features “thermal-electric separation” and “liquid-electric separation” designs, along with a fire-resistant layer that provides 15% more insulation than traditional cabinets. The smart management system ensures precise warnings and extends the system’s lifespan, making it a reliable and long-term investment.

Pushing the Boundaries with “Mr. Big” and “Mr. Giant”

EVE Energy also showcased its commitment to large-scale energy solutions with the “Mr. Big” super-large capacity 628Ah cell and the “Mr. Giant” 5MWh minimalist large system. These products are designed for large-scale power station projects and demonstrate the incredible potential of LiFePO4 technology.

What This Means for Australia

The launch of these new products from EVE Energy comes at a pivotal time for Australia’s energy market. As we continue to transition towards a renewable energy future, the demand for reliable, scalable, and cost-effective energy storage solutions is at an all-time high. The modularity and logistical advantages of the 836kWh cabinet make it an ideal choice for Australian businesses looking to invest in energy storage, whether for behind-the-meter applications or to support the grid.

LIFEPO4 Australia: Your Partner in Energy Innovation

At LIFEPO4 Australia, we are excited to be at the forefront of this technological advancement. As your trusted partner, we can assist you with:

  • Sourcing and Procurement: We have the expertise to source these cutting-edge EVE Energy products directly for your projects.
  • Seamless Importation: Our team will handle the complexities of importation, ensuring a smooth and hassle-free process.
  • Negotiating Favorable Terms: We can leverage our industry connections to negotiate excellent terms, ensuring you get the best possible value for your investment.

The future of energy storage has arrived, and it’s more accessible than ever. If you’re ready to explore how EVE Energy’s new LiFePO4 solutions can transform your business, we’re here to help.

Contact LIFEPO4 Australia today to discuss your energy storage needs and to learn more about how we can help you power your future.

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How Lithium Prices Influence ESS-Grade LFP Cell Costs

Introduction

How Lithium Prices Influence ESS-Grade LFP Cell Costs Lithium iron phosphate (LiFePO₄ or LFP) is the chemistry of choice for stationary energy storage systems (ESS) thanks to its safety, cycle life, and cost stability.
But battery-grade lithium carbonate (Li₂CO₃) prices can move sharply. The big question: does this heavily impact the final cost of an ESS battery?
The answer: it has a surprisingly small effect — even when prices double.

1. Real-World LFP Cell Examples

Two widely used prismatic LiFePO₄ cells from EVE Energy are great case studies:

  • EVE MB31 – 314 Ah large-format cell (~1 kWh, ~5.6 kg)
  • EVE LF100LA – 100 Ah cell (~0.326 kWh, ~1.98 kg)

Exact lithium content is proprietary, but we can calculate it closely using LiFePO₄’s chemistry.

2. Lithium Carbonate Content in LFP Cells

Lithium makes up about 4.4% of LiFePO₄’s cathode mass, and lithium carbonate is 18.8% lithium by weight.

From this, manufacturing each 1 kWh of LFP storage capacity needs ~0.47 kg of lithium carbonate.

This means:

  • MB31 (≈1 kWh) → ~0.47 kg Li₂CO₃ per cell
  • LF100LA (≈0.326 kWh) → ~0.153 kg Li₂CO₃ per cell

3. Price Change: USD $10,000/t → USD $20,000/t

Let’s compare the impact of lithium carbonate doubling from USD $10/kg to USD $20/kg.

Per cell:

  • MB31 314 Ah:
    • $10/kg → USD $4.70 lithium cost
    • $20/kg → USD $9.40 lithium cost
    • Increase: USD $4.70 (~AUD $7)
  • LF100LA 100 Ah:
    • $10/kg → USD $1.53 lithium cost
    • $20/kg → USD $3.06 lithium cost
    • Increase: USD $1.53 (~AUD $2.30)

4. Effect on a 51.2 V Battery Pack (16 Cells)

Most 51.2 V ESS batteries are built from 16 cells in series:

  • Using MB31 cells (314 Ah / ~1 kWh each):
    • 16 × USD $4.70 increase = USD $75.20 (~AUD $112) more if Li₂CO₃ doubles in price.
  • Using LF100LA cells (100 Ah / ~0.326 kWh each):
    • 16 × USD $1.53 increase = USD $24.48 (~AUD $36) more if Li₂CO₃ doubles in price.

5. Why the Impact Is So Small

Even a 100% jump in lithium carbonate prices adds less than AUD $120 to a large 51.2 V / 314 Ah battery, and under AUD $40 to a smaller 100 Ah version.

That’s because:

  • Lithium carbonate is only a small fraction of the cell’s mass.
  • The rest of the cost comes from iron, phosphorus, graphite, copper, aluminium, electrolyte, casings, BMS, labour, testing, logistics, and installation.

6. Key Takeaways

  • Doubling lithium carbonate from USD $10k/t → USD $20k/t adds:
    • ~USD $75 (~AUD $112) to a large 51.2 V 314 Ah pack
    • ~USD $24.50 (~AUD $36) to a smaller 51.2 V 100 Ah pack
  • Other materials, manufacturing, and installation dominate ESS battery costs.
  • Lithium price swings are important, but they don’t make or break ESS battery affordability.

Sources:

EVE datasheets of 100ah and 314ah cells.

  • Lithium content calculations based on LiFePO₄ molecular composition.
multiplus_ii_cec_approved
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Victron MultiPlus-II Now CEC Approved to 2028

Victron MultiPlus-II Range Gains Expanded CEC Approval

The Clean Energy Council (CEC) has updated its approved inverter list to include additional Victron MultiPlus-II models under the AS/NZS 4777.2:2020 standard, valid until 2027–2028.

Newly Approved Models (Independent Supply Inverter category)

Now certified for residential & commercial use in:

  • On-grid installations — with no power export back to the grid, single or three-phase. (No Battery Rebate available on grid)
  • Off-grid installations — with up to 4 units per phase in parallel.
    Battery rebate is available, when installed by an OFFGRID licensed CEC/SAA installer
    (to be clear, this is a very uncommon license even for Solar installers)
ModelApproval Expiry
MultiPlus-II 48/8000/110-100 230VJul 10, 2028
MultiPlus-II 48/10000/140-100 230VJul 10, 2028
MultiPlus-II 48/15000/200-100 230VJul 10, 2028

Existing Approved Models

The 3 kVA & 5 kVA models (including GX versions) remain approved under:

  • Stand-Alone Inverter with Generator Input – Battery Only
  • Stand-Alone Inverter with Grid Input – Battery Only (-AU models)
ModelApproval Expiry
MultiPlus-II 48/3000/35-32 230V AUAug 23, 2027
MultiPlus-II 48/3000/35-32 230V GX AUAug 23, 2027
MultiPlus-II 48/5000/70-50 230V AUAug 23, 2027
MultiPlus-II 48/5000/70-50 230V GX AUAug 23, 2027

📄 Source: CEC – Approved Inverters (AS4777.2:2020)

FULL LIST August 2025.

ModelCertificate No.Approval ExpiryNotes
MultiPlus-II 48/3000/35-32 230V AUSAA181339Aug 23, 2027GX & non-GX variants approved
MultiPlus-II 48/5000/70-50 230V AUSAA181339Aug 23, 2027GX & non-GX variants approved
MultiPlus-II 48/8000/110-100 230VSGS/240835/3Jul 10, 2028New large-frame model
MultiPlus-II 48/10000/140-100 230VSGS/240835/3Jul 10, 2028New large-frame model
MultiPlus-II 48/15000/200-100 230VSGS/240835/3Jul 10, 2028New large-frame model

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Breaking News : EVE MB56 Stock is Available New Stock is leaving EVE factories this week.

EVE MB56: A Game-Changer in Energy Storage

EVE Energy’s new MB56 (also known as LF560K) battery cell is potentially going to make waves in the world of energy storage, promising to revolutionize everything from home solar systems to large-scale grid infrastructure. This LiFePO4 (LFP) prismatic cell boasts an impressive blend of high capacity, extended lifespan, and enhanced safety, setting a new benchmark for the industry.

EVE MB56
EVE MB56 seen next to the EVE MB30 cell. Cycle life can be as high as 12000 cycles, but for residential non thermally managed battery cells, EVE has given them a cycle life of 8000 cycles according to the datasheet they have released. – Source EVE BATTERY USA WEBSITE

EVE MB56 628AH 3.2V LFP LIFEPO4 DATASHEET

EVE MB56Download

At its core, the MB56 offers a nominal capacity of 628Ah and a nominal voltage of 3.2V. What truly sets it apart, however, is its ultra-long cycle life, ranging from 8,000 to an astonishing 12,000 cycles to 70% of its original health. This longevity is a result of EVE’s innovative manufacturing techniques and improved material composition for both the cathode and anode.

Beyond its impressive lifespan, the MB56 prioritizes safety and efficiency. It features very low internal resistance, minimizing energy loss and maximizing performance. The cell is designed with robust safety features, including an explosion-proof and leak-free construction, and excellent thermal stability. EVE is even integrating “smart cell” technology for real-time monitoring of crucial parameters like temperature and gas levels.

The MB56 is a true workhorse, designed for a wide array of applications. Its primary focus is large-scale energy storage systems, encompassing utility-grade grid storage, commercial building solutions, and seamless integration with renewable energy sources. It’s also an ideal candidate for off-grid systems, providing reliable power for homes and remote setups. Furthermore, its “Automotive Grade” designation makes it suitable for electric vehicles, particularly buses, heavy-duty trucks, and commercial fleets, as well as marine applications. For the DIY enthusiast, its high capacity, pre-welded studs, and included busbars make it an attractive option for building custom battery packs.

EVE Energy began pilot production of the MB56 around December 2024 at its state-of-the-art “Super Factory” in Jingmen, China. This highly automated facility is designed for precision and efficiency, with the capacity to produce a remarkable 1.5 cells per second.

In essence, the EVE MB56 represents a significant leap forward in battery technology. Its combination of high capacity, exceptional cycle life, and advanced safety features not only drives down overall system costs but also simplifies integration, paving the way for a more efficient and sustainable energy future.

Limited stock is available, but they are now in production for available to purchase in limited quantities, we also have

Further news, we may be moving away from the JK BMS for some of our higher end batteries. We have already started using a PACEBMS on our LiFePro 51.2v 100ah batteries, and the software is great, the touchscreen is really easy to set the required protocol and the ability to connect to the BMS remotely is ideal, featuring both Wifi and Bluetooth.

The new models just recently annouced now feature 2A Active cell balancing, which is a really great feature, it not only extends the pack life, when the cells begin to fade with age, it also makes the balancing function, must faster than traditional energy storage BMS.

The new PACE BMS offers OTA (over the air) updates, a cleaner and nicer software setup, on Tier 1 grade hardware with 2A active balancer built into the board. This is significant, and allows us to be able to remotely update any BMS that is connected to the WIFI network at the installed location, firmware brings new features in particular inveter support and updates.

PACE200ABMS 2A ActiveBalancer
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