Sungrow

Who is Sungrow

Sungrow was founded in 1997 by Cao Renxian, then a lecturer at Hefei University of Technology. The company is headquartered in Hefei, in China’s Anhui province. It listed on the Shenzhen Stock Exchange in November 2011, under the ticker 300274.

Sungrow started out making power supplies for industrial equipment. However, it moved early into solar inverters, and that business now anchors the group. In 2025, S&P Global ranked Sungrow as the world’s largest supplier of PV inverters by shipment volume, a position it has held for several consecutive years.

Home batteries are a newer, fast-growing part of the business. By 2024, Wood Mackenzie ranked Sungrow as the second-largest global supplier of battery energy storage systems, with a 14% market share, just behind Tesla. In addition, Sungrow supplies utility-scale storage, EV charging equipment and commercial systems. This page focuses on the residential side: the hybrid inverters and home batteries it sells to households through installers.

The Sungrow product range

Sungrow’s home energy system pairs a hybrid inverter with one of two battery platforms. Homeowners typically choose a battery size first, then match it to a compatible SH-series inverter. These are manufacturer figures, so check current datasheets before you buy, since specs and prices change over time.

SH-RS and SH-RT hybrid inverters

Sungrow’s residential hybrid inverters come in two main families, split by phase. The SH-RS series covers single-phase homes, with models from about 3 kW up to 10 kW of rated AC output. The SH-RT series serves three-phase properties, in a similar power range and beyond for larger homes.

Both families include multiple MPPT inputs, so each inverter can connect several strings of solar panels at different orientations. For example, the SH8.0/10RS model uses four MPPTs across four strings. That flexibility suits roofs with panels facing more than one direction.

Sungrow markets its newer inverters with 24/7 full backup and a near-instant switchover during a power cut. In practice, this means the system can keep essential circuits, and in some cases a whole home, running when the grid goes down, as long as the battery still has charge.

SBR high-voltage battery

The SBR series is Sungrow’s high-voltage LiFePO4 battery line. It is built from 3.2 kWh prismatic modules, stacked from two modules up to eight.

That gives a usable capacity range from 6.4 kWh (SBR064) up to 25.6 kWh (SBR256), across seven named models. Each step up adds one more 3.2 kWh module. As a result, homeowners can size the battery closely to their actual usage.

The SBR range carries a 10-year product warranty, with full conditions set out in Sungrow’s separate battery warranty letter. It also carries an IP55 rating, so it tolerates outdoor installation in most climates.

SBH modular battery

The SBH series is a more recent, lower-cost modular alternative, built from 5 kWh units. Seven named models run from SBH100 (10 kWh, two modules) up to SBH400 (40 kWh, eight modules).

Several SBH units can be linked in parallel to one compatible inverter. Sungrow specifies up to four units, for a combined total of around 160 kWh. That makes the SBH range suited to larger homes, or to sites wanting a significant backup reserve rather than a single stack.

Like the SBR series, SBH batteries use LiFePO4 chemistry, carry a 10-year warranty, and are rated IP55 for outdoor mounting.

Key technology behind Sungrow

Sungrow’s home battery line runs on lithium iron phosphate (LiFePO4) cells throughout both the SBR and SBH ranges. This chemistry is generally more thermally stable than older lithium-ion types. That is one reason it has become the default choice for home storage.

Monitoring runs through iSolarCloud, Sungrow’s own app and web platform. It covers both the inverter and the battery, showing live generation, consumption, battery state of charge and historical data. Installers also use iSolarCloud remotely for setup and diagnostics, which can speed up fault-finding.

The multi-MPPT design on SH-RS and SH-RT inverters is another notable feature. Rather than treating a whole roof as one string, it lets each section of panels run its own maximum power point tracking. As a result, shaded or differently angled roof sections lose less output than they would on a single-MPPT inverter.

Backup switching is a further strength. Sungrow’s newer inverters are built for near-instant transfer to battery power during an outage, rather than the few-second delay seen on some older hybrid systems.

Strengths and limitations

Sungrow’s scale and manufacturing experience bring real advantages. However, the brand also has trade-offs worth weighing before you commit. The list below sets out both sides.

Where Sungrow fits the market

Sungrow sits among the handful of global brands that make both the inverter and the battery. That puts it alongside GivEnergy, Sunsynk, Fox ESS and Alpha ESS in this guide, rather than against plug-in or portable brands.

Its manufacturing scale is a genuine differentiator. Few competitors ship as many inverters worldwide, and that volume supports a wide service and installer network across many countries.

However, Sungrow is not a budget option, and it is not the cheapest hybrid system on the market either. In practice, its position sits closer to a mainstream, installer-led choice: well-proven hardware, backed by a large manufacturer, at a price in line with other tier-one brands.

Because it is sold through installers rather than direct to consumers, the final price and exact model availability depend heavily on your local market and chosen installer. For that reason, getting a quote from more than one accredited installer is worth the time.

If you are comparing Sungrow against other hybrid-inverter brands, start by working out the capacity your home actually needs. Our battery capacity guides break this down by typical household size and usage pattern. You can also run your own numbers through our free home battery calculator to see a realistic cost and payback range before you talk to an installer.

Common questions about Sungrow