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What can you do with our products? Energy systems for:
offgrid solutions
Proven, reproduced thousands of times, reliable
Power remote areas with renewable energy
- Villages electrification and minigrids
- Mountain huts and remote areas
- Telecommunications system
- Solar Home Systems (SHS)
Villages electrification and minigrids
The minigrid is a small, autonomous electricity network that enables electricity to be produced, stored, and shared on a local scale. It works with different renewable energy sources, such as solar, wind, or hydro, and conventional sources like a genset.
At Studer, we have developed products (inverter-chargers, solar chargers) to create energy systems for the different schemes:
- Standard hybrid system with gensets and solar
- Centralized minigrid systems
- Distributed interactive system coupled by AC
Each systems is scalable and reduces operating costs by minimizing diesel generator usage.
Mountain huts and remote areas
In remote areas like mountain refuges, there’s often no electricity grid. Our systems ensure full energy autonomy by optimizing solar, wind, or hydro energy, and managing battery charge/discharge to provide power even without sunlight.
They intelligently handle production, storage, and consumption, integrating backup generators that run only when needed, cutting fuel use and maintenance.
Developed in the Swiss mountains, our solutions are built for harsh, isolated conditions. With remote monitoring and a modular design, they adapt to each site’s specific needs, offering true energy autonomy.
Compatible products: next1, next3, xtender, vario and aj series
Telecommunications system
Reducing reliance on diesel generators for offgrid telecom sites is a major challenge. These remote locations need continuous, reliable power.
To address this, we deliver products for autonomous energy systems combining solar, wind and hydroelectric power, advanced battery storage and intelligent energy management. By prioritizing renewables and using generators only as backup, we significantly cut fuel use, operating costs, and environmental impact, while ensuring uninterrupted service for critical telecom infrastructure.
- An offgrid telecommunication system in Spain.
Solar Home Systems (SHS)
Solar Home Systems (SHS) play a crucial role in rural electrification, particularly in areas where access to the main electricity grid is limited or non-existent. These standalone systems provide a simple, cost-effective, and reliable source of energy to meet essential daily needs. SHS typically powers lighting, mobile phone charging, radios, fans, and other small appliances, improving quality of life, enhancing safety, and enabling education and communication.
By replacing polluting and expensive energy sources like diesel gensets, SHS contribute to healthier living conditions, economic development, and environmental sustainability in underserved rural communities.
- A remote area in Madagascar (Africa) where aj have been installed for SHS
and many more...
Sales Inquiry
Get in touch with our sales team for more information on our products and personalized offers.
Become or find a partner
Join forces with Studer or find a partner who works with us for your project.
Discover our products
Find out more about what our products can do to help you with your project
ongrid solutions
Self-consumption + self-sufficiency for your home
The offgrid experience to maximize autonomy for grid-tied systems
Power grid-connected buildings with solar and storage
- Self-sufficiency (autarky)
- Retrofit of existing installations
- Backup, secure your power supply
- Grid services (booster, peak shaving, phase balancing and more)
- Smart Energy Management
Self-sufficiency (autarky)
Relying solely on solar energy can be a challenge, especially when the sun goes down or the grid fails. That’s why we offer solutions to make your renewable energy available day and night, even during blackouts.
One step to energy independence: our products allow you to use the energy produced by the solar panels during the day, to store the excess in batteries for the night. With an autarkic installation, you reduce your reliance on the public grid, you reduce your electricity bills, but without the disadvantages of disconnecting yourself completely.
Upgrade existing installations with storage
Upgrading existing grid-tied PV systems by adding storage and a battery-inverter is a smart way to gain energy independence without replacing what already works.
At the end of the subsidy program? Ready to invest again to improve your solar use?
Our retrofit solutions make it easy to add batteries to existing solar installations, enabling self-consumption, backup power, peak shaving, and smarter energy use. Whether for residential, commercial or industrial sites, our systems work alongside existing grid inverters and bring advanced energy management.
- This picture depicts an ongrid installation in Switzerland.
Backup, secure your power supply
Ensuring power supply during grid failures and blackouts is critical for many applications (emergency lights, CCTV etc.). Combining solar energy, battery storage, and intelligent energy management, our systems provide continuous power to the installation while reducing generator runtime and fuel consumption.
- The backup and autarky installation of the Swiss ambassador´s house in Myanmar
and many more...
Sales Inquiry
Get in touch with our sales team for more information on our products and personalized offers.
Become or find a partner
Join forces with Studer or find a partner who works with us for your project.
Discover our products
Find out more about what our products can do to help you with your project
mobile solutions
Sustainable and intelligent energy for onboard systems
Energy on the way
- Caravaning/leisure vehicles
- Professional vehicle
- Boats
Caravaning/leisure vehicles
Having electricity is essential for leisure vehicles and caravans, especially when traveling in remote areas with no access to plugs.
Our products provide a clean, quiet, and efficient solution to power all essential onboard equipment, including lighting, refrigerators, kitchen, mobile devices, multimedia devices, and more. Our systems allows batteries to be charged from various onboard energy sources such as roof-mounted or external solar panels, wind turbines, vehicle alternators, and more.
Compatible products: next1, next3, xtender, vario and aj series
Professional vehicle
Energy autonomy is critical for professional vehicles such as food trucks, expedition vehicles, mobile workshops, or medical units.
Our products deliver a clean, quiet, and efficient energy solution to reliably power essential onboard equipment, including refrigeration units, cooking appliances, medical equipment, lighting, communication systems, tools, and more.
Compatible products: next1, next3, xtender, vario and aj series
Boats
Reliable electricity autonomy is essential on board of marine vessels, whether for sailing yachts, or professional marine operations. At sea or anchored in remote areas, access to conventional power sources is limited.
Our products provide a clean, silent, and efficient energy solution to supply power to onboard equipment such as navigation systems, lighting, refrigeration, communication devices, kitchen appliances, and more. Our systems support battery charging from diverse energy sources, including solar panels, wind turbines, and the vessel’s alternator. When the harbour provides a connection that is not powerful enough to power your loads, our inverters automatically compensate using the battery with the Smartboost function.
Compatible products: next1, next3, xtender, vario and aj series
and many more...
Sales Inquiry
Get in touch with our sales team for more information on our products and personalized offers.
Become or find a partner
Join forces with Studer or find a partner who works with us for your project.
Discover our products
Find out more about what our products can do to help you with your project
Special features
Our products adapt to each situation. Contact us if you would like to find out more or if you are looking for a particular feature not listed below.
Residential
For true energy autonomy, a complete backup solution is essential, one that stores the solar energy produced during the day for use in the evening or during outages.
We have the solution that will keep you in the light and independent of the grid. Our next series of inverter/chargers provide this autonomy:
AC coupling (add storage to an existing solar system)
The AC coupling is the principle of using separated battery inverters and AC PV inverters in the same system, ideal, when you want to add batteries to an existing solar installation.
In island mode, the next1, next3 or the xtender battery inverter generates the local grid’s voltage and frequency. The solar grid inverters then synchronize to this local grid just as they would with the public grid.
In this setup, solar production is directly used by the AC loads, and any excess is stored by our inverters-chargers in the batteries for later use. When the PV inverter is connected to the AC flex input/ouput of the next, the Studer system can fully monitor and measure the solar production.
DC coupling (extend your studer system with more solar)
DC coupling is the principle of connecting PV modules directly to the battery system via a DC charge controller.
With our variotrack and variostring charge controllers, solar energy is sent directly to the batteries, without the need to first convert it to AC. The xtender or next inverter then uses this stored energy to power AC loads at any time, even during grid outages.
You can extend the existing studer solar system at any time with the addition of new vario solar chargers.
This setup ensures high efficiency and precise control of both charging and consumption. The Studer system continuously monitors solar input, battery state, and power flows, providing a reliable and intelligent solution for energy autonomy.
Having a solar charging station right at your home or industry is a game changer. With the next inverter-charger series, electric mobility becomes solar mobility.
You can charge during the evening with your solar energy that has been produced during the day. With it’s 16kW power the next3 is able to fully power a 12kW car charger.
By connecting your EV charger to the AC flex input/output, you can:
Monitor exactly how much energy your car consumes
Automatically disconnect charging during a blackout or if the battery drops below a set level (e.g. 50%) or other configurable conditions
Energy management systems
With our open Modbus and protocols, we are compatible with existing energy management systems (EMS) like Solar Manager, Loxone… This opens possibilities to applications such as dynamic pricing control, VPP integration and many more.
Develop your system with Openstuder
We maintain a very open communication philosophy, using our communication bridges every professional can integrate studer devices (with full control and information) into advanced monitoring and control systems.
We have different public protocols for external communication:
- xtender inverter-charger series: Studer serial protocol, Studer CAN public protocol, Studer Modbus RTU public protocol
- next inverter-charger series: Studer Modbus RTU & TCP/IP public protocols
There is a wide range of advanced monitoring systems that already incorporate our protocols. If you want to integrate studer into your own platform or learn more about advanced monitoring and control integration please contact our team and check Openstuder and our download center under the section openstuder for further information.
“Can I control my water heater according to my solar production? “ This is a very common request from the system owner (final customers).
Yes, it is possible to control your hot water production according to your solar production. For example, by combining AC•THOR or AC ELWA 2 provided by my-pv with our xtender or next inverters, it is possible to use the surplus of photovoltaic electricity that cannot be stored in the battery to generate heat.
This even works in offgrid or island installation. When the battery is fully charged, the inverter increases the AC output frequency. My-PV detects the increase in frequency and increases the heating power accordingly. Contact our team to know more
The AC flex output connection of the next inverter-charger series can be programmed to disconnect power supply in certain conditions (such as a blackout, or low battery levels etc.) to conserve energy for essential appliances, ensuring uninterrupted power to critical loads.
It can also be programmed to be activated according to certain conditions, useful for powering your loads based on your solar production.
Besides the AC flex the inverter also has dry contacts and inputs. Those I/O allows to realise mini-domotics applications without additional hardware. The physical contacts on our products allow you to start certain appliances according to the conditions specified in the inverter configuration. Without the need for an external home automation system.
This technology enables your vehicle to function as mobile power stations, providing electricity to power external devices and equipment.
It has a wide range of potential applications, from powering tools and appliances on a worksite to providing emergency power during a blackout.
If your vehicle is equipped with such an output, you can connect it to the inverter like an emergency genset.
The grid feeding is fully controllable with settings.
Zero feed-in: In some cases, it is not allowed to inject solar energy into the grid. Solar is used for the load and excess goes to the storage, never to the grid.
Limited grid feeding: With the increase of solar installation, the grid is under stress. In some cases, it is asked to limit the peak power injected into the grid during the day. This is fully programable in our devices.
Studer monitoring app
A quick look at your main system performance indicators from your tablet/phone.
Find out more about it here or download now in the Apple Store or Google Play.
Optimised self-consumption: use your solar energy during the day, store the surplus, and keep a reserve in case of power cuts.
Industrial
For true energy autonomy, a complete backup solution is essential, one that stores the solar energy produced during the day for use in the evening or during outages.
We can provide systems up to 72kVA to power your essential loads.
In the event of a blackout, the system instantly switches from grid to off-grid mode, ensuring an uninterrupted power supply, no additional accessories needed. You won’t even notice the change.
AC coupling (add storage to an existing solar system)
The AC coupling is the principle of using separated battery inverters and AC PV inverters in the same system, ideal, when you want to add batteries to an existing solar installation.
In island mode, the next1, next3 or the xtender battery inverter generates the local grid’s voltage and frequency. The solar grid inverters then synchronize to this local grid just as they would with the public grid.
In this setup, solar production is directly used by the AC loads, and any excess is stored by our inverters-chargers in the batteries for later use. When the PV inverter is connected to the AC flex input/ouput of the next, the Studer system can fully monitor and measure the solar production.
DC coupling (extend your studer system with more solar)
DC coupling is the principle of connecting PV modules directly to the battery system via a DC charge controller.
With our variotrack and variostring charge controllers, solar energy is sent directly to the batteries, without the need to first convert it to AC. The xtender or next inverter then uses this stored energy to power AC loads at any time, even during grid outages.
You can extend the existing studer solar system at any time with the addition of new vario solar chargers.
This setup ensures high efficiency and precise control of both charging and consumption. The Studer system continuously monitors solar input, battery state, and power flows, providing a reliable and intelligent solution for energy autonomy.
Energy management systems
With our open Modbus and protocols, we are compatible with existing energy management systems (EMS) like Solar Manager, Loxone… This opens possibilities to applications such as dynamic pricing control, VPP integration and many more.
Develop your system with Openstuder
We maintain a very open communication philosophy, using our communication bridges every professional can integrate studer devices (with full control and information) into advanced monitoring and control systems.
We have different public protocols for external communication:
- xtender inverter-charger series: Studer serial protocol, Studer CAN public protocol, Studer Modbus RTU public protocol
- next inverter-charger series: Studer Modbus RTU & TCP/IP public protocols
There is a wide range of advanced monitoring systems that already incorporate our protocols. If you want to integrate studer into your own platform or learn more about advanced monitoring and control integration please contact our team and check Openstuder and our download center under the section openstuder for further information.
Peak power can be automatically compensated using the battery. This makes it possible, for example, to bypass grid connection limitations and lower your bills.
A smart power meter can be installed at the electrical main entry point of the building if not all the consumption and production is monitored by the inverter.
This measurement unit allows the next1 or next3 device to know the balance of consumption/production and then to decide when to charge or discharge the battery.
Only the power meter supplied as an accessory by Studer Innotec must be installed.
In a three-phase electrical system, each phase ideally carries the same load. But in reality, some phases can be overloaded while others are underused. The Smart boost2 is able to perform phase balancing.
In an electrical network, excessive reactive power consumption causes several problems for the end user: increased current flowing through cables, additional losses, voltage drops and financial penalties imposed by network operators when the power factor becomes too low.
Our inverter-chargers optimise active and reactive energy management, which includes advanced algorithms to limit unnecessary reactive power exchanges with the grid. This helps to improve the power factor and therefore reduce the kVARh billed.
In addition, the combination with battery storage and intelligent control functions makes it possible to smooth power demands, optimise the use of available active power and avoid costly oversizing of cables or transformers.
The grid feeding is fully controllable with settings.
Zero feed-in: In some cases, it is not allowed to inject solar energy into the grid. Solar is used for the load and excess goes to the storage, never to the grid.
Limited grid feeding: With the increase of solar installation, the grid is under stress. In some cases, it is asked to limit the peak power injected into the grid during the day. This is fully programable in our devices.
Our monitoring web portal, gives you advanced insights on your energy use.
I have a weak grid with a low power connection capacity
Our device performs peak shaving function with the Smart Boost, which means above a given load, the power automatically comes from the battery to compensate. Very useful with underdimensionned grids or limited connections.
My generator doesn’t stand asymmetrical loads
The smart phase balancing of the next3 inverter/charger associated with the artificial inertia algorithm guarantee optimal use of genset.
Can you guarantee that your inverter will be able to start my load?
Surge power capacity is a tradition in Studer products. It is very important in offgrid systems to cope with starting loads and transitions. That is where we make a difference! Did you know that asynchronous motors have starting current up to more than 5 times the nominal?
I have a weak grid and I want to have a backup genset
The next inverter/charger series can be configured with two AC sources (grid + genset). The AC flex input port can be used for the connection of a genset as backup. The xtender inverter/charger series can also manage two sources with an external ATS.
I’m producing on phase 1 and consuming on phase 2. The balance is zero but my DSO charges for the consumption
The smart phase balancing compensate just what is necessary to minimize your bill. A full grid phase balancing is possible, in that case the power taken on the AC-source is always absolutely symmetrical.
I need larger power than the biggest inverter
Our xtender inverter/charger series can work in multi-units system 3x parallel and in 3 phases, building systems up to 72kW.
The next3 is a three phased inverter/charger with solar integrated that can work in parallel up to 3 units (45kW).
The next1 is a single phase inverter/charger. You can creat a Single-phase, bi-phase, three-phase system with up to 2 units per phase up to (39kVa)
I need an integration in the SCADA system of the building
This is possible with standard communication, MODBUS RTU (xtender inverter/charger series, next inverter/charger series) and MODBUS TCP (next inverter/charger series) with opensource examples and ressources available (GitHub).
I want to perform load shedding with various modes of operations
The Studer inverters have freely programmable contacts and input. This allows for simple automation tasks without external PLC.
The AC flex of next series is a monitored connection that can be freely programmed.
My batteries are expensive, how to make them last as long as possible
Intelligent management is in all our products. Algorithms are embedded in all units to control the depth of discharge (DOD), the regular recharge for calibration. See the B.L.O. (Battery Life Optimizer) in aj and xtender series and adaptative SOC function in next series.
I need to understand what happened in my customer’s system
Monitoring tool with advanced technical details is available for the professionals on our webportal. Studer monitoring app is simpler and more dedicated to the end customer.
Webportal:
https://portal.studer-innotec.com
Studer monitoring app:
Download now in the Apple Store or Google Play.
Which battery should I install?
We have been manufacturing power electronics for battery-based systems for more than 37 years. Battery technology is evolving very fast, so our devices are compatible with different battery technologies. Consult our product page to learn more.
Products
Check our extensive range of products
| next3 | next1 | xtender | variotrack | variostring | aj | ||
|---|---|---|---|---|---|---|---|
| Power range | 15kVA - 45kVA | 4.5kVA - 39kVA | 700VA - 72kVA | 625W - 75kW | 4.2kW - 105kW | 800VA - 2.4kVA | |
| Number of models ¹ | 2 | 2 | 25 | 3 | 2 | 4 | |
| Function | Inverter DC to AC | • | • | • | • | ||
| Charger AC to DC | • | • | • | ||||
| Solar DC to DC | • MPPT |
• MPPT |
• MPPT |
option PWM | |||
| Gridfeeding | • | • | • | ||||
| Multi-unit operation | 3 | 9 | 9 | 15 | 15 | - | |
| Flex ² | • | • | |||||
| Available for batteries | 12V | • | • | • | |||
| 24V | • | • | • | ||||
| 48V | • | • | • | • | • | • | |
| Markets | offgrid | • | • | • | • | • | • |
| ongrid | • | • | • ³ | • | • |
¹ This includes various DC voltages, AC wth 230V/50Hz or 120V60Hz, optional solar variants or rack version. Check our product pages to know more
² Flex is an AC connection that can be configured as a second input or second output
³ With some limitation due to new grid codes conformity