SAX Power battery storage
with integrated inverter and backup function
Safer.
More efficient.
More durable.
SAX Power battery storage systems from Erbach near Ulm are ushering in a new era with a groundbreaking control system that directly supplies alternating current and solves many of the problems of conventional storage systems.
The SAX Power battery is a new generation of battery technology. The heart of the SAX Power technology is the intelligent, digital control of the battery cells, which converts direct current directly into alternating current.
This innovation makes storage safer, more efficient, more compact, more durable and contributes to a significant increase in economic efficiency.
new installations
The SAX system does not require an inverter on the battery side. This means that no expensive hybrid inverter is required for a new installation.
The connection can be made either traditionally via a cable connection or as a plug-in solution to a secured socket, thus saving costs and installation space.
battery extensions
Thanks to the special balancing method, which optimally balances the charge states of the cells, weaker cells have almost no influence on the performance of the entire battery.
When subsequently expanded, the new battery modules provide full power and make the advantage of the SAX circuit even clearer.
retrofits
As with the new installation, the SAX storage system can be connected to a secured socket either via a cable connection or as a plug-in solution without an additional inverter.
This is a clean and simple solution, especially if you want to avoid bricklaying and plastering work.
The SAX Power battery opens a new chapter in storage technology.
Its key element, a sophisticated digital control system, enables direct current to be converted directly into alternating current.
This is achieved by combining the voltages of the individual cells into a sine wave, eliminating the need for a separate inverter.
The innovative SAX Power circuit allows the cells to work independently of each other, which optimizes the balancing of the charge state in both existing systems and extensions.
This solution eliminates the problem of charge imbalance, one of the most common sources of failure that leads to a shortened operating time of battery storage systems.
By integrating storage and conversion capabilities into a single system, SAX technology takes battery technology to a whole new level.
Your advantages when using a SAX Power battery storage system
Generally:
Implemented battery-side inverter function
Quick installation (approx. 1.5 hours)
Compatible with any PV system as there is no communication with PV inverters – ideal for retrofitting
Compact system due to elimination of the inverter
Key data and commissioning directly visible on e-paper display
Warranty on the battery cells 10 years at 80% of the remaining capacity
Made in Germany with value chain largely in Germany
Technically:
~99% efficiency during conversion -> Resulting in approx. 95% overall efficiency
Longer service life due to optimal cell utilization (rotating charge balancing)
Low standby consumption (<4W)
No risk of fire or explosion due to cell chemistry (LiFePo4) and shutdown of the cells within 0.2 milliseconds
No time limit for expansion (old storage can still be expanded with new storage even after 5 years, thanks to charge equalization)
Expandable to 17.4 installed capacity for Home 5.8 and 23.1 kWh installed capacity for Home Plus 7.7
Smart meter communication via RS485
Smart meter measurement via hard wiring on the phase or split current transformers
emergency power operation and backup power
Modbus TCP/IP control
Hardly any heat or noise generation (even under full load)
The advantages of the SAX Power battery
Maximum Security
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Maximum security
We use cobalt-free lithium iron phosphate cells, which guarantee four times the safety of the NMC cells that have been widely used to date. In addition, the special SAX Power circuit offers additional safety through individual monitoring and switching of the battery cells. This enables the cells to be completely switched off and separated within 0.0002 seconds. This practically eliminates the risk of fire and explosion. After switching off, the entire system is below the safety voltage - this eliminates any risk for the installer during maintenance work. .
Very high efficiency
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Very high efficiency
Conventional storage systems lose energy even when idle and therefore generate unwanted heat. With an efficiency of 99% for conversion, the SAX Power Home has negligible losses, so hardly any heat is generated.
longevity
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longevity
With SAX Power technology, the performance of the battery series is no longer determined by the weakest cell in the series, which increases the battery's service life by up to 50%. In order to operate the battery as gently as possible and to maximize its service life, we use a completely new form of balancing - rotating charge balancing. Here, the capacity of each cell is fully utilized by charging and discharging it individually, because all battery cells have slight differences due to production.
cost savings
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cost savings
The direct output of alternating voltage means that the inverter on the battery side is superfluous and a significant cost factor is eliminated. This means that when retrofitting, only the SAX Power Home is required for the existing PV system, without the additional inverter for the battery. When installing a new system, you only need a normal PV inverter for the PV system instead of a hybrid inverter. This saves money and effort.
Lightweight, compact and
modularly
expandable
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Lightweight, compact and modularly expandable
Compared to conventional products, the SAX Power battery is significantly smaller and lighter. The inverter as an additional system is completely eliminated. In this way, space and weight savings of up to 30% can be achieved. If additional energy is required, the SAX Power Home can easily be expanded to three modules with a total of 15.6 kWh. This also represents a significant advantage for use in the field of e-mobility.
Easy Installation
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Easy installation
You can choose between conventional installation and plug-in installation. This does not require a new cable to be laid for the storage unit, so the wall does not need to be opened. Your household socket simply needs to be replaced with a secured socket, which you can get from a specialist retailer or from us. The SAX home storage unit is then controlled either wirelessly via a SAX smart meter or, in the smart home version, via an external control unit. Installation should always be carried out by an approved electrician.
The SAX Power App
Monitor your storage
Monitor all important information about your SAX Power Home conveniently and from anywhere via smartphone or tablet. If you have installed the SAX Power Smartmeter ADW, you can now also view the performance of your existing photovoltaic system.
To make the data provided clearer and easier to understand, there is now also a graphical representation of the flow of electricity. This means you can see immediately whether your storage is being charged, whether surplus energy is being generated by the photovoltaic system or whether you are getting electricity from the grid.
Pending updates from your SAX Power Home are displayed and can be updated by you yourself with one click.
Furthermore, new features for our installers and specialist partners will be integrated in 2024.