Sungrow manufactures more inverters than any other company on the planet. That’s not marketing language. By units shipped, they’ve held the global number one position since 2015, with over 405GW installed across 150 countries by mid2023. In Australia, they’re the second most popular residential inverter brand by volume, behind only Fronius.
Perth Solar Warehouse installs Sungrow’s current RS-series inverters and SBR battery range. We don’t lead with Sungrow in every quote — your system design, roof layout, and energy goals determine which inverter fits best. But when the brief calls for a well-priced hybrid inverter with strong battery integration, Sungrow consistently earns its place on the shortlist.
This guide covers the four residential inverter models we install, how they pair with Sungrow’s SBR and SBH batteries, and what Perth homeowners specifically need to know about grid compatibility on the SWIS network.
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Sungrow’s residential lineup in Australia centres on four models in the RS series. Two are solar-only string inverters. Two are hybrid inverters with battery input built in. All four share the same industrial design language, iSolarCloud monitoring platform, and 10-year warranty.
SG-RS: single-phase string inverter
The SG-RS is Sungrow’s solar-only inverter for single-phase homes. Available in 3kW, 5kW, 8kW, and 10kW sizes, it handles the core job of converting DC solar generation into AC household power. No battery input. No backup function. Just reliable grid-tied conversion.
What makes the current generation worth noting: three MPPTs on the 5kW and above (up from two on older models), a minimum MPPT voltage of just 50V (which allows strings as short as two panels), and 16A input current per MPPT to handle today’s higher-current panels without derating. If your home runs single-phase power and you don’t need battery storage right now, this is the simplest, most cost-effective path.
The trade-off is clear. If you decide to add a battery later, the SG-RS can’t accept a DC-coupled battery. You’d pair it with an AC-coupled unit like a Tesla Powerwall 3 or Sigenergy, which works well but means the inverter itself won’t manage your battery charging schedule.
SH-RS: single-phase hybrid inverter
The SH-RS is where most Perth homeowners land when they want Sungrow with battery flexibility. Available in 5kW, 6kW, 8kW, and 10kW sizes, it does everything the SG-RS does plus accepts DC-coupled battery input from Sungrow’s SBR range. The 10kW model runs four MPPTs, which gives genuine design flexibility for complex roof layouts.
The hybrid capability isn’t just a spec sheet feature. The SH-RS manages time-ofuse charging through iSolarCloud, supports backup power to an essential circuit during grid outages, and handles fast charge and discharge rates that improve self-consumption. For a household installing solar and battery together, the SH-RS plus SBR combination is one of the most cost-effective packages available in Perth.
The SH-RS also accepts AC-coupled batteries (Tesla Powerwall, Sigenergy) alongside its DC battery input. That flexibility matters if your energy needs change over time.
SG-RT: three-phase string inverter
The three-phase equivalent of the SG-RS. Available from 5kW to 20kW, the SG-RT suits larger homes and light commercial properties running three-phase power. Two MPPTs, 1000V maximum input voltage, and a compact 18kg form factor that makes installation straightforward.
Same principle as the single-phase string model: if you don’t need battery integration through the inverter, the SG-RT delivers clean three-phase solar conversion at a sharp price point.
SH-RT: three-phase hybrid inverter
Sungrow’s three-phase hybrid, available in 5kW, 8kW, and 10kW. Compatible with both SBR and SBH battery ranges, with backup capability and the same iSolarCloud management platform. The SH-RT is the pick for three-phase homes that want integrated battery storage from day one.
For larger storage demands (above 25.6kWh), the SH-RT pairs with the newer SBH battery series, which uses 5kWh modules instead of the SBR’s 3.2kWh units and supports a higher 50A continuous discharge current.
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The inverter is only half the conversation when you’re considering Sungrow. The battery range is where the ecosystem comes together.
Sungrow SBR: The SBR is Sungrow’s established residential battery. It uses 3.2kWh lithium iron phosphate (LFP) modules that stack in a floor-standing rack. Start with two modules (6.4kWh on the SH-RS) or three (9.6kWh on the SH-RT), and scale up to eight modules (25.6kWh) per stack. Each module weighs around 36kg, manageable for a single installer.
Key specs that matter in practice: 97% round-trip efficiency, 30A continuous charge and discharge, IP55 weather rating for indoor or outdoor installation, and a 10-year warranty with 70% capacity retention. LFP chemistry runs cooler and lasts longer through daily cycling than NMC alternatives. That’s not a marginal difference — it’s thousands of additional cycles over the system’s life.
For most Perth households running a 6.6kW to 10kW solar system, an SBR configuration between 9.6kWh and 16kWh covers evening consumption and overnight loads without oversizing.
Sungrow SBH: The SBH is Sungrow’s newer, higher-capacity battery using 5kWh modules. It’s designed for homes with larger energy demands or light commercial applications. Configurations run from 20kWh to 40kWh per stack, with up to four stacks in parallel for a maximum 160kWh.
The meaningful differences from the SBR: 50A continuous current (versus 30A), higher energy density per module, and a slightly higher C-rate (0.7 versus 0.6). The SBH pairs exclusively with Sungrow’s three-phase hybrid inverters (SH-RT series).
For single-phase homes, the SBR remains the right choice. The SBH earns its place when three-phase power and high energy throughput are both part of the equation.
Grid compatibility on the SWIS network
Every inverter installed in Perth connects to the South West Interconnected System (SWIS), managed by Western Power (network) and Synergy (retailer). Sungrow’s RS-series inverters are certified to AS/NZS 4777.2 and carry CEC approval for grid connection in Australia. No compatibility concerns for standard residential installs.
CSIP-AUS compliance (May 2026 changes)
From May 2026, all new inverter installations in WA must comply with CSIP-AUS (Common Smart Inverter Profile — Australian edition). This standard requires inverters to accept remote instructions from the network operator for export management. Sungrow’s RS-series inverters support the necessary communication protocols. The key change for homeowners: the old 5kW singlephase export limit framework is being replaced by a 30kVA aggregate inverter limit across all phases, with flexible export options requiring remote disconnect and reconnect capability.
If you’re installing after May 2026, your installer needs to confirm CSIP-AUS compliance at the design stage. Perth Solar Warehouse designs all new systems to meet these requirements.
Synergy DEBS and battery economics
The Distributed Energy Buyback Scheme (DEBS) pays variable rates for exported solar depending on time of day. With a hybrid inverter and battery, you can shift consumption away from buying grid power at peak rates and maximise the value of your solar generation. The SH-RS and SH-RT both support scheduled charging and discharging through iSolarCloud, which means you can align battery behaviour with DEBS export windows and Synergy tariff periods.
Perth Solar Warehouse configures these settings during commissioning. You don’t need to be a software engineer to get the economics right — but you do need an installer who understands Synergy’s tariff structure and programs the inverter accordingly.
STC eligibility
Solar panels installed with Sungrow inverters in Perth qualify for Small-scale Technology Certificates (STCs) under Zone 3 allocation. STCs reduce the upfront cost of your system — they’re calculated based on system size, location, and remaining deeming period. They are not a government rebate; they’re tradeable certificates created under the federal Renewable Energy Target. Perth Solar Warehouse applies the STC discount at point of sale.
Battery rebate eligibility
Sungrow SBR and SBH batteries qualify for both the WA Residential Battery Scheme (state government rebate) and the federal Cheaper Home Batteries Program (approximately $372 per usable kWh, active since July 2025). Perth Solar Warehouse is listed as an approved vendor under the WA scheme through our broader trading name, PSW Energy.
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We install Sungrow because it’s a genuinely good product at a competitive price point. The RS-series inverters are reliable, the SBR batteries are well-proven in the Australian market, and the iSolarCloud monitoring app does its job without overcomplicating things.
That said, Sungrow isn’t the right answer for every home.
If you want the most advanced home energy ecosystem with integrated EV charging, load management, and whole-home backup from a single platform, products like the Sigenergy SigenStor or Tesla Powerwall 3 offer deeper integration out of the box. If you want a European-manufactured inverter with passive cooling (no fan noise in the garage), Fronius or SMA might suit better.
Sungrow’s strength is the middle ground: solid engineering, competitive pricing, and a battery range that scales without locking you into exotic hardware. For Perth homeowners who want a well-priced solar and battery system that works reliably and doesn’t require a technology degree to manage, it’s a strong choice.
Sungrow RS-series inverters carry a 10-year parts and labour warranty. SBR and SBH batteries carry 10-year warranties with 70% capacity retention guaranteed. Sungrow’s Australian support office operates from Sydney with local technical and warranty teams.
Perth Solar Warehouse complements every manufacturer warranty with our own workmanship guarantee for the same period. If something goes wrong, you deal with us directly from either our Bibra Lake or Neerabup location. One call, one company, no finger-pointing between installer and manufacturer.
Sungrow is one of several inverter brands Perth Solar Warehouse installs. Whether it’s the right fit depends on your roof, your power supply, your energy consumption, and what you want your system to do five years from now. We design systems around your requirements, not around a single brand.
Request a quote and our team will assess your property, recommend the right inverter and battery combination, and provide transparent pricing with all applicable rebates and STC discounts included.
