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US solar manufacturer Sunpower has unveiled two new storage systems for residential rooftop photovoltaic systems.

The two devices, called SV-BASE13-C and SV-BASE19.5-C, respectively are part of the company’s Sunvault series. “With this launch, SunVault is now available in five configurations: 13 kWh, 19.5 kWh, 26 kWh, 39 kWh, and 52 kWh. Some of these options include multiple inverters,” he said in a released statement.

The SV-BASE13-C The storage system has a storage capacity of 13 kWh and a maximum usable energy of 12 kWh. It measures 164cm × 71cm × 36cm and weighs 217 kg.

The The SV-BASE19.5-C battery offers a storage capacity of 19.5 kWh and a maximum usable energy of 18 kWh. It is the same size as the SV-BASE13-C system and weighs 267 kg.

Both lithium-ion systems use LiFePO4 as the cathode material and have a round-trip efficiency of over 86%. Their rated internal voltage is 51.2 V and the maximum continuous backup output current (AC) is 28.3 A.

Both batteries can operate with an ambient temperature range of -20 C to 45 C and have an IP54 protection level. New products are guaranteed for 10 years and, according to the manufacturer, can operate for unlimited cycles.

“With these new storage sizes and higher power output from multiple UPSs, SunVault’s modular configuration allows customers to get the storage size they need today with the confidence that they can grow. their system as their home energy needs change,” Sunpower said. “The new SunVault sizes will be available beginning in early 2023.”

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