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Salt battery storage systems optimised for small PV systems

1-phase storage with 7 kWh

Sustainability costs more than the mass product, as we all know. And rightly so. Because the conscious and clean use of resources is more expensive - from the procurement of raw materials to production and recycling. Therefore, cost-cutters are often left behind. But what if there were a small salt battery storage system for the small purse? Then you too would have the opportunity to store ecologically and cleanly!

innovenergy offers you an economically feasible salt-based energy storage system for your PV system:

  • 1 x 3 kVA inverter power (230 V)
  • 7 kWh storage capacity - not expandable
  • Low investment costs
  • Maximisation of your own consumption through intelligent control
  • Monitoring of the power situation and and energy analysis via smartphone app or internet browser
  • plug & store - turnkey solution with easy installation

The salidomo© ECO is an AC-coupled 1-phase salt battery storage system for smaller PV systems. The system works with all PV inverters. The installed battery inverter capacity is 3 kVA.

In Switzerland, 1-phase systems up to 3.6 kVA (16 A) inverter power may be installed. For more than 3.6 kVA feed-in power, 3-phase systems must be used. With an inverter output of 3 kVA, the salidomo© ECO is below the maximum limit and is therefore approved for Switzerland.


 salidomo© ECO
Installed photovoltaic system4 - 9 kWp

System characteristics

 salidomo© ECO
Type of systemAll-in-one system
AC phases1-phase storage system
KFW subsidyyes, 10-year current value guarantee
Requirements installation sitedry, indoor and outdoor
Fire and personal protection requirementsusual personal protection, no fire protection measures necessary
AC installation effortapprox. 1/2 day (depending on local conditions)
Dimensions (WxHxD)640 x 882 x 820 mm
Total weight145 kg

Battery storage

 salidomo© ECO
Battery typeSalt battery (molten salt or ZEBRA cell)
Chemical nameNaNiCl2 (sodium nickel chloride)
Battery manufacturer / ProductFZSoNick / 48TL160
Expected life (years/deep cycles/shallow cycles)15 years / > 4500 / > 8500
Nominal storage size7.7 kWh
Daily usable storage6.5 kWh
Charging power≤ 32 A (≤ 1.9 kVA) battery limited
Continuous power discharge60 A (3 kVA) inverter limited
Maximum C rate (charge/discharge)0.25 C / 0.5 C
Nominal battery voltage48 V
Battery efficiency90 %


 salidomo© ECO
Victron, adapted to salt battery1 x 3 kVA / 230 V
Overload capacity of the max. discharge power6 kVA
Time of maximum overload5 seconds
Galvanic isolation (battery from system)yes
Energy managementVictron ESS
Inverter safety in PV systemsDIN EN 62109 certified

Further functions

Self-consumption optimisationintegrated and configurable
Automatic stand-by operationwith unloaded inverters
Energy managementVictron ESS
Visualisation, data analysis, energy statisticsWeb platform plus app for iOS + Android

Definition of emergency power

Without emergency power
In the event of a grid failure, the entire system stops operating and cannot be used any further. Neither the PV system works nor the battery storage system is available.  

Off-grid operation/UPS
With an island-capable battery storage system, the system continues to function completely without the grid in the event of a grid failure. The battery continues to be charged via the PV system. Subsequent technical requirements can be found under "Emergency power supply". 

UPS means uninterruptible power supply. This means that in the event of a power failure, the system automatically switches to off-grid operation in less than 20 msec and continues to function independently.

Emergency power supply

The salidomo© ECO is always capable of emergency power supply via a socket connected to the battery system. In the event of a power failure, the battery can continue to be used until it is empty.

Intelligent control

  • Potential-free contact for switching consumers on and off (charging station, heat pump, etc.)
  • Time control for recharging the battery from the mains (calibration 100 % SOC)
  • Lifetime-optimised operation of the battery (discharge protection during bad weather periods, consideration of the weather, power limits)


There are no early recycling or disposal fees. However, the transport of the battery to be discarded back to the manufacturer in Stabio/CH must be borne by the customer. There, the complete battery is returned to its raw material cycle.


With a maximum of 80 % DOD without further conditions, the battery is covered directly by the manufacturer with a guarantee of 10 years. The battery inverters are covered by a 5-year warranty. Everything else is covered by a standard 2-year warranty. The warranty is an device warranty. Travel costs and working hours will be charged separately in the event of replacement or faults, unless you have subscribed to a service contract for the relevant year.


EMC Directive 2014/30/EU: EN 61000-3-2:2014 | EN 61000-3-11:2017 | EN 61000-3-12:2011 | EN 61000-6-1:2007 | EN 61000-6-2:2019 | EN 61000-6-3:2007/A1:2011/C11:2012 | EN 61000-6-4:2019 | EN 55014-1:2017 | EN 55014-2:2015 | EN_IEC 62040-2:2018
Low Voltage Directive 2014/35/EU: EN-IEC 60335-1:2012/A11:2014/A13:2017 | EN-IEC 60335-2-29:2004/A2:2010/A11:2018 | EN-IEC 62233:2008 | EN-IEC 62368-1:2014/A11:2017 | EN-IEC 62109-1:2010 | EN-IEC 62109-2:2011 | EN-IEC 62040-1:2020 | EN-IEC 50438:2014 | EN 62485-1:2018 | EN 62485-2:2018 | UL 1973 2013 Ed.1 | VDE-AR-N 4105:2018-11 | VDE-0126-1-1:2006/A1:2012 | VDE V 0124-100:2019-04 | G99 1-6:09.03.2020 | G98 1-3:03/2019 | EN 50549-1:2019 | EN-IEC 62116:2014 | EN 61439-1:2012 | EN 61439-2:2012 | EN-IEC 62984-1:2017 | EN-IEC 62984-3-1:2017 | EN-IEC 62984-3-2:2017
RoHS (2011/65/EU and 2015/863/EU): EN 63000:2019

Advantages of the salt battery

The salt batteries of the innovenergy storage solution are made of harmless materials: 32 % common salt, 22 % nickel, 22 % iron, 20 % ceramic.

The recycling of the salt battery has been standardised for 15 years. The metals are melted down and returned to the metal industry. The battery is manufactured 100% in Switzerland according to Swiss environmental and labour standards.

The salt battery is absolutely safe - the rooms do not need any fire protection or fire warning devices as the battery is neither flammable nor can it explode. It can also be operated in very cold and very warm rooms (-20° to +60° C) without ventilation or air conditioning. The outside temperature does not affect the storage capacity or the service life.

The battery survives a total discharge without damage. The salt battery has a service life of at least 15 years (10-year guarantee) and is maintenance-free.

The salt battery is extremely robust and is used by the thousands in the telecommunications industry. In industry, it is considered a cheap and safe electricity storage technology in the long term. With innovenergy, this technology is now also available for domestic use and for businesses.

You can find more information under Salt Technology.

You want to know what the whole thing costs now? 
To do this, click on the "Start Request" button on the left and download the salidomo© ECO price list immediately.