Products from the next smart inverter-charger series
smart inverter-charger
single phase 6500VA 48V
smart inverter-charger
three phase 16kVA 48V with solar
smart inverter-charger
three phase 16kVA 48V with solar
next1,
join the true energy autonomy, join the autarky!
high-end Swiss-made inverter-charger for offgrid and grid-tied applications
next1, the inverter-charger for energy autonomy
Certified with main grid codes and many more…The new smart inverter-charger for offgrid and grid-tied applications a heritage of our 38 years of experience. With this device you can achieve the real energy independence that everybody wants.
A single-phase, high-end, swiss made 6500VA inverter-charger with a low frequency topology, ensuring the highest overload capability, robustness and the minimum standby consumption for a low TCO.
Multi-unit options for split-phase, three-phase with up to 6 units (39kVA with the nx1 6500-48).
next1, the inverter-charger for energy autonomy
Certified with main grid codes and many more…The new smart inverter-charger for offgrid and grid-tied applications a heritage of our 38 years of experience. With this device you can achieve the real energy independence that everybody wants.
A single-phase, high-end, swiss made 6500VA inverter-charger with a low frequency topology, ensuring the highest overload capability, robustness and the minimum standby consumption for a low TCO.
Multi-unit options for split-phase, three-phase with up to 6 units (39kVA with the nx1 6500-48).
Low TCO
Reliability means fewer service calls and fewer urgent emergency interventions.
High efficiency saves energy.
Advanced battery management protects the most expensive part of the system.
All included communication (wifi, internet, app, CAN BMS, etc.).
Durability
IP65-rated for reliable use in all environments.
Designed, assembled, and tested in Switzerland.
Install once, profit for more than a decade, thanks to high-quality components.
Expand your system by adding more units later.
10 years warranty
Level up your autarky
Off/ongrid inverter of 6500VA.
Provides full backup power.
Unstoppable peak power 12kVA for 5sec.
Low TCO
Reliability means fewer service calls and fewer urgent emergency interventions.
High efficiency saves energy.
Advanced battery management protects the most expensive part of the system.
All included communication (wifi, internet, app, CAN BMS, etc.).
Durability
IP65-rated for reliable use in all environments.
Designed, assembled, and tested in Switzerland.
Install once, profit for more than a decade, thanks to high-quality components.
Expand your system by adding more units later.
10 years warranty
Level up your autarky
Off/ongrid inverter of 6500VA.
Provides full backup power.
Unstoppable peak power 12kVA for 5sec.
One inverter to rule them all
Each of your applications can be powered by the next1
offgrid and backup application
solar autarky (self-sufficiency) with external solar charger or grid inverter
minigrids application
on board power and limited shore power compensation
mobile application
telecom application
hydro AC/DC power
wind AC/DC power
and more…
What customers think of next1
“The new next1 inverter surpassed our expectations in many ways. It is the perfect answer to the current problems we face with standard injecting solarsystems reducing power due to overinjected public grids. Placed between the grid and the existing installation, it renders the consumer into an autonomous unit, unaffected by outside factors. It is the real energy independence, that everybody wants. On top of that it protects against blackouts and maximises self-consumption.
This high-end inverter is literally solid as a rock, has an incredible peak performance and is swarmcontrol-ready. It works with any type of battery and has a very clear app-interface to see what’s going on. We noticed that customers want a durable lifelong solution for their energy management at home. With 10 years of warranty and an adaptable, futureproof device the next1 exactly meets up with these expectations adding serious long-term value to any electrical installation”
Sam De Prins, Stafco in Belgium
“Since we installed our solar system equipped with the next1 inverter, the way we consume energy has completely changed. We’ve found true energy autonomy, especially between April and September when our self-sufficiency rate reaches almost 99%. It’s quite simply impressive.
Our house consumes an average of 14 kWh per day, and thanks to this system, our consumption has dropped by over 90%, from around 5,200 kWh/year to 480 kWh. The annual production of 6,200 kWh covers our needs.
Studer’s next1 system can protect the house against power cuts by automatically switching to offgrid mode. Energy security is no longer an option, but a reality. From now on, the electricity grid is no longer our main source of power, but merely a temporary backup. It’s a robust, intelligent and, above all, scalable installation.
We’re delighted with this solution. It’s an investment that combines performance, reliability, and peace of mind. For anyone who wants to free themselves from the grid’s constraints while preparing for the future and lowering their electricity bill, the next1 is an obvious choice.”
Giuseppe Morandi
“The new next1 inverter surpassed our expectations in many ways. It is the perfect answer to the current problems we face with standard injecting solarsystems reducing power due to overinjected public grids. Placed between the grid and the existing installation, it renders the consumer into an autonomous unit, unaffected by outside factors. It is the real energy independence, that everybody wants. On top of that it protects against blackouts and maximises self-consumption.
This high-end inverter is literally solid as a rock, has an incredible peak performance and is swarmcontrol-ready. It works with any type of battery and has a very clear app-interface to see what’s going on. We noticed that customers want a durable lifelong solution for their energy management at home. With 10 years of warranty and an adaptable, futureproof device the next1 exactly meets up with these expectations adding serious long-term value to any electrical installation”
Sam De Prins, Stafco in Belgium
“Since we installed our solar system equipped with the next1 inverter, the way we consume energy has completely changed. We’ve found true energy autonomy, especially between April and September when our self-sufficiency rate reaches almost 99%. It’s quite simply impressive.
Our house consumes an average of 14 kWh per day, and thanks to this system, our consumption has dropped by over 90%, from around 5,200 kWh/year to 480 kWh. The annual production of 6,200 kWh covers our needs.
Studer’s next1 system can protect the house against power cuts by automatically switching to offgrid mode. Energy security is no longer an option, but a reality. From now on, the electricity grid is no longer our main source of power, but merely a temporary backup. It’s a robust, intelligent and, above all, scalable installation.
We’re delighted with this solution. It’s an investment that combines performance, reliability, and peace of mind. For anyone who wants to free themselves from the grid’s constraints while preparing for the future and lowering their electricity bill, the next1 is an obvious choice.”
Giuseppe Morandi
Zero worries about environmental conditions
Designed to withstand the toughest environments, the next1 performs perfectly, no matter what the conditions:
– intense heat
– extreme cold
– high humidity
The next1 delivers 80% of its nominal power at 45°C and even works at 60°C.
Thanks to its IP65 protection, it withstands rain, dust and even 100% humidity, ensuring reliable performance in any environment. Wherever your installation may be, this inverter will keep working, without compromise.
Zero worries about environmental conditions
Designed to withstand the toughest environments, the next1 performs perfectly, no matter what the conditions:
– intense heat
– extreme cold
– high humidity
The next1 delivers 80% of its nominal power at 45°C and even works at 60°C.
Thanks to its IP65 protection, it withstands rain, dust and even 100% humidity, ensuring reliable performance in any environment. Wherever your installation may be, this inverter will keep working, without compromise.
Swiss made 
Proudly designed, assembled, and tested in Switzerland, ensuring the highest standards of quality and reliability that Studer Innotec is known for.
Every unit undergoes strict controls to ensure performance, long-term durability, and seamless operation in the most demanding environments.
With Swiss made excellence, you can trust the next1 to deliver reliability for years to come.
Swiss made
Swiss made
Proudly designed, assembled, and tested in Switzerland, ensuring the highest standards of quality and reliability that Studer Innotec is known for.
Every unit undergoes strict controls to ensure performance, long-term durability, and seamless operation in the most demanding environments.
With Swiss made excellence, you can trust the next1 to deliver reliability for years to come.
Install once profit for a decade, reduce your TCO and boost your ROI
The next1 is designed to stand the test of time, just like our legacy inverters that have powered installations for decades, some even up to 30 years of operation
With Swiss engineering at its core, premium high-quality components, it ensures long-term reliability, efficiency, and peace of mind. Install once and profit for years to come. You will have a great ROI (Return on Investment) and low TCO (Total Cost of Ownership).
Full interactive grid inverter
Including an AC source with double disconnection relay from the grid. This input complies with the latest grid-tied regulations in the EU and other regions. The electricity grid is no longer your main source of power, but merely a temporary backup.
Perfect and pure sinus
The next1 delivers an exceptionally pure sinusoidal wave, making it ideal for applications that demand a flawless signal.
This level of precision is so high that some of our customers use Studer inverters in offgrid mode in recording studios to eliminate electrical noise and interference caused by poor grid quality, ensuring uncompromised audio quality thanks to a great sinus.
Unstoppable peak power 12kVA for the nx1 6500-48 for 5sec and peak shaving
Built to power all your loads, including pumps, compressors and others peak power. All loads can be powered in offgrid.
With peak shaving you can reduce the amount of electricity drawn from the grid (or generator) during high-demand periods by using stored energy from your batteries to supply the extra power. Peak power is reduced, and so are the associated costs.
Power flow dispatcher®
System-oriented, the Power flow dispatcher® is our AI algorithm that coordinates the energy management of the entire system. Offering you the best possible management of your energy production.
A wide range of battery compatibility and supercapacitors
The next1 is compatible with all 48V battery chemistries (lithium, lead, Na+…), either communicating or not. An integrated CAN-BMS interface ensures a plug and play solution with communicating lithium batteries. There is a very flexible battery profile configuration to help you to adapt to each technology.
Adaptative management of batteries
With more than three decades of expertise in offgrid energy management, we have perfected battery optimisation to ensure long-lasting performance. The next1 features our Battery Lifetime Optimizer (BLO), which intelligently adapts charge cycles to preserve battery health and extend its lifespan.
Thanks to precise charge control and advanced management algorithms, your batteries operate efficiently, reliably, and for the long run.
Choose your type of solar AC or DC
The philosophy with our next1 is to work seamlessly with any brand of solar inverters coupled on AC and/or our solar charge controllers coupled on DC for new or retrofit installations. It gives you greater flexibility and a wide choice of solar inverter/grid inverter brands for your project.
The next1 can work with our vario series of solar chargers in DC coupling with the xcom 485i-nx accessory.
AC flex, a second source or an extra controlled load
The unique AC flex connection can be configured to use a second AC source or an extra controlled load. For loads, it offers you a fully monitored connection for open possibilities: solar AC, genset, wind+hydro, V2L, load management and shedding…
Multi-units flexibility
Single-phase, bi-phase, and three-phase, up to 2 units per phase for more powerful systems (39kVA). You can customize each system to your customer’s needs.
From now on, everything is included in next1
nextOS, our operating system to configure, control, and analyse your system, has been integrated directly into the device and made available by wifi on your phone or tablet. So there’s no need to pay for an external control screen.
The physical nx interface is still available as an optional accessory if your customer wants a physical display interface.
Built-in connectivity: access point, wifi and ethernet, web interface, CAN BMS, Modbus RTU/TCP, USB and more. Everything is included in next1
Easy monitoring and wizard configuration via the app
Designed to monitor your system’s data, the Studer monitoring application is perfect for obtaining information about your system at a glance.
We offer our monitoring tools completely free of charge, both the Studer monitoring app for end-users and the Studer web portal for installers, because we believe that reliable, professional, and complete monitoring should be a standard, not an option. All data is stored on European servers.
Unlock the potential of home automation integration
I/O: mini-domotics without additional hardware. The potential free contacts on the next1 allow you to start certain appliances according to the conditions specified in the inverter configuration, without the need for an external home automation system.
For more complex systems, you can use our open modbus/API “open studer” to fully integrate the next1 devices into complex and customized system architectures.
Full backup power without loss warranty
Designed to counter grid blackouts by providing full-power backup, the next1 ensures energy availability at all times. Our warranty policy includes no limit on operating time without a grid connection, so you can enjoy your electricity whenever you need it. The grid is optional, not mandatory.
Uninterrupted power, seamless genset integration
Gensets can be connected to our next1 inverter/charger to provide emergency power for your installation when the battery is low or when the sun isn’t shining enough. The inverter is also capable of automatically starting the genset.
Rack your wall-mounted version
The wall-mounted inverter/charger next1 can be mounted in a 19″ rack using an adapter plate.
Enjoy the versatility of rack installations with our next1 19″ rack adapter plate accessory. You can include it in a complete professional solution integrating rack batteries, high index protection, controlled temperature among others. The rack environment for a limitless potential.
Options & accessories
nx1 19" rack plate
adaptation mouting plate for 19’’ rack
nx interface
next user interface
nx tempSensor
battery temperature sensor
nx pm
power meter with Modbus RTU
xcom 485i-nx
communication with vario solar charge controller
Options & accessories
nx1 19" rack plate
adaptation mouting plate for 19’’ rack
nx interface
next user interface
nx tempSensor
battery temperature sensor
nx pm
power meter with Modbus RTU
xcom 485i-nx
communication with vario solar charge controller
Technical specifications
next1 inverter-charger
In case of technical data change, this bloc below needs to update, it is use for mobile display of technical data
Inverter
| Power 30 min. @25°C | 6 500 VA |
| Continuous power @25°C | 4 500 VA |
| Power 5 sec. @25°C | 12 000 VA |
| Nominal line to neutral output voltage* | pure sine wave 220/230/240 Vac (±1%) |
| Nominal output frequency* | 50/60 Hz (±0.02%) |
| Loads cosφ range | 0.1 – 1 |
| Harmonic distortion (THD) | < 1% |
Battery charger
| Nominal battery voltage (Input range) | 48 Vdc (38 – 68 Vdc) |
| Maximum charging current/power* | 125 Adc |
| Charge characteristic* | 6 steps: bulk, absorption, floating, equalization, reduced floating, periodic absorption |
| Temperature compensation | with nx tempsensor (not included) |
AC source (*Grid or Genset)
| Maximum rated current | 80 Aac |
| Operating line to neutral voltage range | 176 – 288 Vac |
| Nominal line to neutral voltage* | 220 / 230 / 240 Vac |
| Nominal frequency* | 50 / 60 Hz |
| Overvoltage category (OVC) | III |
| Grid code compliance | -Italy: CEI 0-21 with Uflex batteries -Belgium: Synergrid C10/11 -European: EN50549, valid in many countries with regional settings. |
AC flex (*Controlled 2nd AC load or Genset)
| Maximum rated current | 50 Aac |
| Operating line to neutral voltage range | 176 – 288 Vac |
| Nominal line to neutral voltage* | 220 / 230 / 240 Vac |
| Nominal frequency* | 50 / 60 Hz |
General data
| Product dimensions h/w/l and weight | 182 / 439 / 575 mm 39 kg |
| Transport dimensions h/w/l and weight | 275 / 495 / 630 mm 42kg |
| Selfconsumption OFF / Standby / ON | 3 / 7 / 28 W |
| I/O Communications | 2 x nx communication bus RJ45/8, 1 x CAN BMS, 1 x RS485i (Modbus), 1 x nx tempSensor |
| Multifunction I/O contacts | 2 x digital Input, 2 x analogical Input, 2 x Aux output rating 16 A each |
| Interfaces | nx interface, datalogger USB 1-min resolution, 1 x RS485i, 1 x LAN, 2 x USB, nx wifidongle, studer portal + Studer monitoring app |
| Safety+EMC conformity (CE marking) | EU Low Voltage Directive (LVD) 2014/35/EU, EU Electromagnetic Compliance (EMC) 2014/30/EU |
| Ingress Protection according to IEC60529 | IP 65 |
Operating ambient temperature range -20 to 60°C | Relative humidity operation range 100 % (non condensing) | Mounting location indoor/outdoor, unconditioned
Grid codes for :
-Italy: CEI 0-21 with Uflex batteries
-Belgium: Synergrid C10/11
-European: EN50549, valid in many countries with regional settings.
Find the certificates for the next1 in our download center.
In case of technical data change, this bloc below needs to update, it is use for pc and tablets display of technical data
Inverter
| Power 30 min. @25°C | 6 500 VA |
| Continuous power @25°C | 4 500 VA |
| Power 5 sec. @25°C | 12 000 VA |
| Nominal line to neutral output voltage* | pure sine wave 220/230/240 Vac (±1%) |
| Nominal output frequency* | 50/60 Hz (±0.02%) |
| Loads cosφ range | 0.1 – 1 |
| Harmonic distortion (THD) | < 1% |
Battery charger
| Nominal battery voltage (Input range) | 48 Vdc (38 – 68 Vdc) |
| Maximum charging current/power* | 125 Adc |
| Charge characteristic* | 6 steps: bulk, absorption, floating, equalization, reduced floating, periodic absorption |
| Temperature compensation | with nx tempsensor (not included) |
AC source (*Grid or Genset)
| Maximum rated current | 80 Aac |
| Operating line to neutral voltage range | 176 – 288 Vac |
| Nominal line to neutral voltage* | 220 / 230 / 240 Vac |
| Nominal frequency* | 50 / 60 Hz |
| Overvoltage category (OVC) | III |
| Grid code compliance | -Italy: CEI 0-21 with Uflex batteries -Belgium: Synergrid C10/11 -European: EN50549, valid in many countries with regional settings. |
AC flex (*Controlled 2nd AC load or Genset)
| Maximum rated current | 50 Aac |
| Operating line to neutral voltage range | 176 – 288 Vac |
| Nominal line to neutral voltage* | 220 / 230 / 240 Vac |
| Nominal frequency* | 50 / 60 Hz |
General data
| Product dimensions h/w/l and weight | 182 / 439 / 575 mm 39 kg |
| Transport dimensions h/w/l and weight | 275 / 495 / 630 mm 42kg |
| Selfconsumption OFF / Standby / ON | 3 / 7 / 28 W |
| I/O Communications | 2 x nx communication bus RJ45/8, 1 x CAN BMS, 1 x RS485i (Modbus), 1 x nx tempSensor |
| Multifunction I/O contacts | 2 x digital Input, 2 x analogical Input, 2 x Aux output rating 16 A each |
| Interfaces | nx interface, datalogger USB 1-min resolution, 1 x RS485i, 1 x LAN, 2 x USB, nx wifidongle, studer portal + Studer monitoring app |
| Safety+EMC conformity (CE marking) | EU Low Voltage Directive (LVD) 2014/35/EU, EU Electromagnetic Compliance (EMC) 2014/30/EU |
| Ingress Protection according to IEC60529 | IP 65 |
Operating ambient temperature range -20 to 60°C | Relative humidity operation range 100 % (non condensing) | Mounting location indoor/outdoor, unconditioned
Grid codes for :
-Italy: CEI 0-21 with Uflex batteries
-Belgium: Synergrid C10/11
-European: EN50549, valid in many countries with regional settings.
Find the certificates for the next1 in our download center.