Sofar solar batteries reviews
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Founded in 2013, China's Sofar Solar is a subsidiary of Sofar Group. The company has had a presence in Australia since 2016.
Australian Contact Details
Address: Suite 1903, 109 Pitt Street, Sydney 2000
Telephone: 1300 176 327
Email: [email protected]
Website
Company Info
Headquartered in Shenzhen, China, Sofar originally started out manufacturing inverters and later moved into energy storage. The firm offers energy management solutions for residential, commercial & industrial, and utility-scale applications.
Sofar Powerall
In 2022, Sofar Solar launched its all-in-one residential energy storage system solution called PowerAll - sounds like the name of a very popular pre-existing battery. Coincidence?
While no longer available in Australia, it was comprised of low-voltage battery pack, Battery Management Unit (BMU), and Power Control Unit (PCU).
The Powerall had a modular design using 5.12 kWh battery modules (4.75 kWh usable capacity). A single system could have up to 6 of these modules, for a total usable capacity of 38.5 kWh. Furthermore, up to 6 subsystems could be used. The Powerall's rated AC output ranged from 4.5 kW with a single module, up to 9 kW with six. Switchover time to critical loads in a blackout was less than 10ms.
An AC-coupled energy storage solution, the Powerall was compatible with high voltage panels and had 2 Maximum Power Point Trackers (MPPTs).
The Powerall inverter unit measured 708 x 170 x 410 mm and weighed 22.5 kg, while the battery modules were 708 x 170 x 420 mm and weighed in at 50 kg. With an ingress rating of IP65, it could be installed indoors or outdoors and had an operating temperature range of -10 °C to +50°C.
Sofar BTS E5~E20-DS5
A more recent addition is the BTS E5~E20-DS5 battery system, which is currently available in Australia.
A DC-coupled solution, it offers modular design, built-in battery pack balance management unit and supports staged capacity expansion. Usable capacities start at 4.75 kWh with one module, up to 19 kWh with four; and multiple stacks can be parallel-connected.
The BTS has been designed for use with ME/HYD 5K~20KTL-3PH three-phase inverters, and can output 2.5kW to 10kW depending on the number of battery modules in use.
IP65 rated, it can be installed indoors or outdoors and like the Powerall has an operating temperature range of -10°C to +50°C. BTS battery modules (BTS 5K) measure 708 x 420 x 170mm and weigh 50kg, while the battery distribution unit (BTS 5K-BDU) is 708 x 200 x 170mm and weighs 7.5 kg.
Warranty Details
The Powerall and BTS battery systems are accompanied by a 10-year warranty. The performance warranty guarantees the BTS will retain at least 70% of its usable energy capacity at the end of year 10, or a minimum throughput of 18.25 MWh per module; whichever comes first. However, we couldn't find an Australian warranty document on Sofar's web site. Make sure you sight and read the warranty before making a purchase decision.
If you're using a Sofar Solar home battery, what are your thoughts? Leave a review and rating. Thinking solar batteries? Read our comprehensive home battery guide.