Sigenergy solar batteries reviews
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Sigenergy is a newcomer to the solar energy storage market - and the company's flagship SigenStor battery is an intriguing solution.
Australian Office Contact Details
Address: Suite 02, Level 7, 191 Clarence Street, Sydney, NSW 2000
Tel. (Sales): 0400 108 934
Tel. (Support): 0452 417 654
Email (Sales): [email protected]
Email (Support): [email protected]
Australian website
Company Info
Sigenergy was founded in early 2022 by ex-Huawei solar division president Tony Xu. While the firm has only been around for a couple of years, it boasts 600+ employees; 70% of who are R&D personnel. The company has an 8,000 square metre facility in China housing its global headquarters and all those R&D folks.
Sigenergy's battery manufacturing plant is a 20,000 square metre factory located in the Lin-gang New Area in Shanghai, which has an annual production capacity of 6 GWh. In an effort to "green" its operations, Sigenergy has installed a 3,000 square metre (capacity not noted) solar system on the factory's rooftop.
SigenStor Solar Battery Highlights
Sigenergy introduced the SigenStor to the Australian market in 2023. The company claims the SigenStor is the first "five-in-one" energy storage system. It combines:
- a PV hybrid inverter
- battery pack
- battery PCS (Power Conversion System)
- Optional EV DC charger module - V2X "ready" (bidirectional charging)
- EMS (Energy Management System)
The batteries are available as single phase models in 5kW, 6kW, 8kW and 10kW AC ratings, with 2, 3 or 4 MPPT inputs. In three-phase, it's available in 5kW, 10kW, 15kW, and 25kW AC ratings, with 2, 3 or 4 MPPT solar inputs. There are 5kWh and 8kWh battery packs available, which are stackable to six units high (up to 48kWh capacity). Additionally, further parallel capacity can be added.
The SigenStor offers blackout protection, with a very quick switchover time - 5-millisecond switching to backup mode. When grid power is restored, the system transitions back within 0 milliseconds. When installed as a battery hybrid (requiring a fee-based firmware upgrade), a gateway is available for full home backup.
On the EV charging front, it's capable for DC EV fast charging at 12.5kW or 25kW capacity. AC EV charging can be carried out at 7kW, 11kW (3-phase) or 22kW (3-phase) with dynamic control.
AI is also integrated into the SigenStor, which polls the battery every ten seconds. The app can be instructed using AI-powered chat. And just on the app, it offers very detailed monitoring - providing information as granular as individual cell voltages and temperatures.
As for VPP support, SigenStor has been integrated with several VPP platforms in Australia, with more to come.
The SigenStor has an IP66 rating; so it's suited to outdoor installation. It has an operating temperature range of -20°C to 55°C according to the datasheet, but the warranty document indicates -20°C to 55°C ambient temperature.
SigenStor Safety Features
In addition to using LFP (lithium-iron phosphate) battery cells - a very stable Li-ion chemistry - the SigenStor has five layers of protection:
- Multiple advanced temperature sensors monitored by AI.
- Internal fire suppression system - aerosol based, claimed to extinguish fires within 4 seconds.
- Decompression valve.
- Aerogel-insulated pads between cells to prevent spread of heat.
- High-temperature-resistant insulation.
The above really only scratches the surface - for a deep-dive into this battery, check out SQ's Anthony's post on SigenStor. You can also see estimated pricing and compare specs with other home energy storage solutions on SQ's solar battery comparison table.
Warranty Information
The SigenStor has a 10-year product warranty on the battery and energy controller, and 2 years on the gateway, power sensor and communications modules. Sigenergy warrants that the battery system will retain either 70% of usable capacity at year 10 or for a minimum energy throughput of 15.85MWh for the 5kWh module or 23.77MWh for the 8kWh; whichever comes first.
An important point to note is a warranty exclusion - it can't be installed in coastal areas within 500 meters of the coastline.
Conclusion
We've been impressed by what we've seen and heard so far about the SigenStor and Sigenergy; and it's currently an SQ-recommended battery. If you have installed one, please leave a rating and review.
Sigenergy Solar Battery Reviews
I’m so pleased I discovered Sigenergy
My “old” system was seven years old, and died in a storm, so it was time for a replacement. Luckily I was guided towards Sigenergy who had just arrived and had been approved here in Australia. As someone who takes energy management, and automation to achieve the best outcomes for both cost and the environment, this is the system that meets all my needs plus some.Not only does it have brilliant real time access to control the system, it is also on the list of systems integrated with the Evergen platform which allows me to make good use of spot pricing. That means the system will quickly pay for itself by allowing me to fill the battery quickly when power prices are low, and then sell the same power back to the grid later that day when prices are high.
The “backup” feature offers 0 ms switch over, and although I haven’t suffered an actual blackout, brute force testing by flipping the circuit breaker confirmed that the house and appliances (including critical IT devices) were blissfully unaware that they were no longer connected to the grid. With two 8 kw batteries the system will, and does, happily pump out 8 kw to the house - more than enough for the average house I would think (although I would suggest turning off non critical devices if you want the battery to last more than an hour or two).
The build quality surprised not only me, but the electricians, and the system is technologically interesting enough that those in the know come to look and check it out
Knowing I can add more batteries within a few minutes by slotting them into the assembly, almost like large Lego blocks, adds to the comfort of knowing I made a good choice.
The system is only new, so I can’t speak to ongoing performance and reliability, but it has ten years warranty (which is clearly listed with date in the app) so I should have nothing to worry about.
If you are looking for the latest generation of Solar and Storage equipment that solves todays energy problems, and probably tomorrows as well, I recommend you take a good long look at Sigenergy. My experience tells me you will be glad you did,
Manufacturer Reply
Hi MikeThanks for your detailed review, we are very happy to hear that you are putting many of our innovative features to good use! Show additional information