Deye MC-L522-2H2 522.496kWh / 250kW Liquid-Cooled AC Battery Energy Storage System

Name: Deye MC-L522-2H2 522.496kWh / 250kW Liquid-Cooled AC Battery Energy Storage System
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The Deye MC-L522-2H2 combines 522.496 kWh of LiFePO4 storage with a 250 kW AC power stage in a liquid-cooled commercial cabinet. The battery operates at 832 V nominal across a 715–936 V DC window and is specified at a 0.5P charge/discharge rate, creating a well-matched platform for approximately two-hour-class commercial energy shifting. On the grid side, the published rating is 250 kW at 380/400 V three phase, with power-factor control from -1 to 1. Aerosol and water fire suppression, IP54 protection, ≥C4 corrosion resistance and operation down to -30°C support deployment in demanding C&I environments, while Modbus TCP, RS485 and DIDO interfaces simplify EMS integration. The 2H2 product page positions this model as the standard 522 kWh-class AC BESS configuration in the current Deye ESS catalogue. That disciplined specification is important for project buyers: the product page should sell the documented 522.496 kWh / 250 kW platform, not an assumed difference that Deye has not published.

Battery	LiFePO4, 314 Ah
Nominal energy	522.496 kWh;
nominal DC voltage	832 V;
DC range	715–936 V
Charge/discharge rate	0.5P
AC	380/400 V, 3L+N+PE; 50/60 Hz
Rated AC power	250 kW;
maximum power	250 kW
Power factor	-1 to 1
Cooling	liquid cooling;
fire suppression	aerosol + water
Ingress protection	IP54; anti-corrosion grade ≥C4; altitude ≤3000 m
Communication	RS485 / Modbus TCP / DIDO
Operating temperature	-30°C to +55°C, derating from ≥40°C
Dimensions	2000×1400×2440 mm; weight ≤5500 kg

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Welcome to Uni Z International B.V.

Uni Z International B.V. is committed to providing you with a full range of solar energy storage products and solutions. We guide the industry and provide you with products at more favorable prices, more timely logistics and delivery, and more secure after-sales and technical support. Deye MC-L522-2H2 522.496kWh / 250kW Liquid-Cooled AC Battery Energy Storage System Suppliers and Company in China. We bring you one-stop solutions for smarter, more efficient and more reliable photovoltaic energy storage products. Wholesale Deye MC-L522-2H2 522.496kWh / 250kW Liquid-Cooled AC Battery Energy Storage System.

We not only provide high-end solar energy storage products and technologies, but also provide you as an installer with comprehensive training and technical support. We believe that only if you have the latest knowledge and skills can our end customers enjoy the advantages of more advanced solar technology.

At Uni Z International B.V., we not only provide products, but also seek to establish a long-term and close partnership with you. We look forward to working with you to meet the challenges and opportunities of the future of solar energy.Start your solar energy journey, choose Uniz Solar and move towards a cleaner, more sustainable future!

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