Test of Balcony Solar Power Storage Systems: A Competitive Battle - Anker Solix Solar Bank vs. Unnamed competitor?
In the realm of balcony solar power storage systems, two standout options are the Anker SOLIX Solarbank 2 and the SPAUN Energy Master. While detailed data is more abundant for the Anker SOLIX series, we delve into the features of both systems to provide a comprehensive comparison.
The Anker SOLIX Solarbank 2 is a modular, plug-and-play home battery system tailored for balcony and small residential solar setups. It offers a storage capacity of approximately 2.7 kWh (expandable in later models like the Solarbank 3 up to 16.1 kWh), supports up to 1,200 W solar input capacity with MPPT charge controllers, and boasts a bidirectional AC output for emergency power up to 1,200 W. The system is weatherproof with an IP65 rating, making it suitable for indoor and outdoor use, and it features integrated battery heating for cold climates. The Anker SOLIX Solarbank 2 uses LiFePO4 (Lithium Iron Phosphate) battery technology, known for its safety, long lifecycle (up to 3,000 cycles), and stable performance. Smart energy management is achievable via app integration for AI-driven charging/discharging, boosting self-consumption efficiency [1][2][4].
In contrast, the SPAUN Energy Master battery storage system provides fewer specific details in the available search results. However, we know that it comes equipped with a smart meter, is compatible with digital power meters like Tibber Pulse, and has an emergency power function. The SPAUN Energy Master can be expanded up to 42.5 kWh, with a modular design that allows coupling with additional storage units. The system is available in sizes ranging from 2.5 kWh to 12.5 kWh, and it has a protection class of IP65. A warranty of 10 years covers the storage, and 5 years is provided for the Energy Master [3].
| Feature | Anker SOLIX Solarbank 2 | SPAUN Energy Master | |-----------------------------|-----------------------------------------|----------------------------| | Storage Capacity | 2.7 kWh (modular up to 16.1 kWh) | Not specified | | Solar Input Capacity | Up to 1,200 W | Not specified | | Battery Technology | Lithium Iron Phosphate (LiFePO4) | Not specified | | Emergency Power Output | Up to 1,200 W | Up to 1750 Watt (approx.) | | Installation | Plug & Play, no complex wiring | Not specified | | Smart Management | AI-controlled app integration | Not specified | | Weatherproofing/IP Rating | IP65, suitable indoor/outdoor | IP65 |
Based on the available information, the Anker SOLIX Solarbank 2 stands out as an efficient, scalable, and smart solution for balcony solar power storage, benefiting from modular design and LiFePO4 battery safety and durability. Without detailed specs for SPAUN Energy Master, a more precise efficiency comparison is not possible.
If SPAUN’s detailed specs are available elsewhere, comparing those key parameters—capacity, input/output wattages, battery chemistry, and smart features—would be necessary to conclusively establish which system is more efficient for balcony power plants.
Noteworthy developments in the balcony solar power plant sector include the simplification of registration with the Federal Network Agency (BNetzA) and the German government's Solar Package 1, which has made the use of such systems more accessible [5]. Additionally, the law allows an overload of the balcony power plant up to 2000 watts, making the use of storage systems for storing excess electricity attractive [6].
[1] Anker SOLIX Solarbank 2 Product Page: https://www.anker.com/uk/solarbank2/ [2] Anker SOLIX Solarbank 2 Review: https://www.reviews.org/solar-storage-batteries/anker-solarbank-2-review/ [3] SPAUN Energy Master Product Page: https://www.dura-solar.de/spaun-energy-master-12-5-kwh-lithium-ion-akku-fuer-solar-anlagen-p22013.html [4] Anker SOLIX Solarbank 2 Manual: https://www.anker.com/manual/en-us/Solarbank2/index.html [5] Simplified Registration for Balcony Power Plants: https://www.bnetza.de/presse/pressemitteilungen/2020/2020-02-27-einheitliche-registrierung-von-balcony-power-plants-bei-der-bnetza.html [6] Balcony Power Plants and the 2000-Watt Law: https://www.solarcity.de/blog/balcony-power-plants-and-the-2000-watt-law/
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