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Pricelist: Wholesale Pricelist
Pricelist: Wholesale Pricelist
Sungrow ST255CS-2H-AU PowerStack Liquid Cooled C&I Energy Storage System 257kWh / 110kW

Sungrow ST255CS-2H-AU PowerStack Liquid Cooled C&I Energy Storage System 257kWh / 110kW

PRODUCT CODE: ST255CS-2H-AU

◦ Nominal energy capacity: 257 kWh
◦ Depth of charge and discharge: 0% to 100%
◦ Dimensions: 1150 mm W x 2450 mm H x 1610 mm D
◦ Weight: ≤ 3200 kg
◦ Ingress protection rating: IP55
◦ Operating temperature range: -30°C to 50°C, with derating above 45°C
◦ EMS300CP included, providing advanced energy management functions such as FCAS, peak shaving, emergency backup, peak-valley arbitrage, demand control, zero-export control and integrated control of PV, ESS and diesel generator systems
◦ Standard fire suppression system includes combustible gas detector, smoke detector, heat detector, alarm sounder and hot aerosol fire extinguishing equipment
◦ Maximum parallel quantity: 25 units on-grid and 20 units off-grid

Exclusions:
◦ SCADA and associated communication equipment are excluded from the current scope of supply. These can be recommended subject to project requirements.
◦ Fire Alarm Control Panel (FACP) is not included in the current scope of supply.
Terms:
◦ Sungrow does not provide offloading or installation services.
◦ Pricing includes Sungrow’s standard remote system commissioning charge.
◦ Pricing is subject to change should the technical agreement, configuration details or customisation requirements vary.
◦ Warranty: Batteries are supplied with a standard 10-year warranty and PCS units are supplied with a standard 10-year warranty. For installations located within 500 m of the coastline, please consult Sungrow to confirm applicable warranty terms.
◦ Storage fees: The Customer shall be responsible for any storage fees incurred where delivery is delayed due to the Customer.
◦ Quoted pricing is based on the AUD/USD foreign exchange rate at the time of quotation and is not fixed or secured until the order has been accepted and confirmed by Supply Partners, together with receipt of the applicable deposit payment.
◦ All orders will require a co-signed technical agreement with Sungrow prior to order placement
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Sungrow ST255CS-2H-AU PowerStack Liquid Cooled C&I Energy Storage System

The Sungrow ST255CS-2H-AU PowerStack is a liquid cooled commercial and industrial energy storage system designed for reliable, scalable and intelligent site energy management.

With 257kWh of nominal battery capacity, 110kW AC output and LFP battery technology, PowerStack is suited to commercial sites looking to reduce energy costs, improve energy resilience and support more flexible power operation.

Sungrow is one of the world’s strongest renewable energy technology brands. Ranked No.1 in BloombergNEF’s 2025 Inverter Bankability Survey, announced in 2026, Sungrow achieved the top ranking for the sixth time, reinforcing its global reputation for quality, reliability and long-term project confidence.

In Australia, Sungrow has built its reputation on quality products backed by exceptional local support. With more than 90 local staff, Sungrow provides strong technical, sales and service capability for Australian installers, engineers, developers and commercial energy customers.

Key Features

Integrated C&I Battery Storage

The ST255CS-2H-AU combines battery storage, power conversion, cooling, safety systems and communications in one integrated cabinet. With 257kWh of nominal capacity, it is designed for commercial and industrial sites that need a robust and scalable energy storage solution.

Liquid Cooled Performance

Intelligent liquid cooling helps maintain stable battery operation across demanding site conditions. Precise temperature control supports consistent performance, with cell temperature difference kept to ≤2.5°C.

High-Efficiency Power Conversion

The integrated DC/AC power conversion unit provides 110kW of nominal AC output with efficiency of up to 98.5%. This helps maximise usable energy and support efficient site energy management.

Flexible Grid Connection

PowerStack supports on-grid, off-grid and automatic switching configurations. This makes it suitable for a wide range of applications including solar-plus-storage, backup, demand management and hybrid energy systems.

Advanced Safety Design

The system includes AI-monitored cell health, early warning capability and three-level over-current protection across PACK, RACK and PCS levels. Integrated fire prevention and suppression systems help support safe and reliable operation.

Smart Monitoring and Control

Sungrow’s iSolarCloud platform provides cloud-based monitoring through app or web access, with real-time alarms and troubleshooting support. Wireless intelligent operation and one-key remote upgrade capability help reduce ongoing maintenance requirements.

Scalable System Layout

Cabinets can be installed side by side for a clean and compact project layout. Up to 25 units can be configured in on-grid systems or up to 20 units in off-grid systems, subject to project design and site requirements.

Built for Australian Commercial Applications

With IP55 protection, C5 anti-corrosion rating and an operating temperature range of -30°C to 50°C, the ST255CS-2H-AU is designed for demanding commercial and industrial environments.

Why Choose the Sungrow ST255CS-2H-AU PowerStack?

The Sungrow ST255CS-2H-AU PowerStack is ideal for commercial and industrial sites that need a reliable battery solution for energy cost reduction, backup support, peak shaving, demand control or solar energy optimisation.

Backed by Sungrow’s global bankability, proven energy storage technology and strong Australian support network, PowerStack offers a practical and future-ready C&I storage platform for businesses looking to take greater control of their energy use.

For Australian commercial sites, industrial facilities, agribusiness and large energy users, the ST255CS-2H-AU delivers high-capacity storage, intelligent cooling, advanced safety and smart monitoring in one integrated system.

Sungrow

Sungrow is a global leading inverter solution supplier for renewables with over 49 GW installed worldwide as of June 2017. Founded in 1997 by University Professor Renxian Cao, Sungrow is a global leader in research and development in solar inverters, with numerous patents and a broad product portfolio offering PV inverter systems as well as energy storage systems for utility-scale, commercial, and residential applications. With a 20-year track record of growth and success, Sungrow’s products are available in over 50 countries, maintaining a market share of around 25 % in Germany and over 15 % globally.

Sungrow Australia office has been established in Sydney since 2012. With this rapid development, Sungrow Australia has built one of the largest solar inverter manufacturers teams in Australia covering sales, technical support, projects and after sales service. The Sales team and technical support team are based in North Sydney and Sungrow warehouse is located in Pendle Hills. Over 6 years local support experience, we have built national service networks and our service contractors are ready to help installers or customers for warranty enquires.

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