Efficient power generation with Sunfire Remote:
Utilising the power of the fuel cell

Table of Contents

How does power generation work with the Sunfire Remote 400 fuel cell?

Die Brennstoffzelle erzeugt Strom mit hoher Effizienz und kann as a stand-alone energy source verwendet werden. 

Whether for emergency power supply um die Aufrechterhaltung der Kommunikation in Krisengebieten sicherzustellen or as a back-up solution um beispielsweise Ihre PV-Anlage zu unterstützen. 

You can count on a reliable power supply at all times, even in remote areas without access to the public power grid.

How much electricity can the fuel cell generate?

Mit einer continuous power von up to 350 watts kann die Sunfire-Remote 400 Brennstoffzelle eine max. daily electrical output of 8.4 kWh/day erzeugen.

For higher energy requirements kann das Sunfire-Remote Power Cabinet 600 hinzugefügt werden, um das Leistungspotenzial zu verdoppeln

Für energieintensive Anwendungen stehen der Sunfire-Remote Powertrailer 1200 und die Powerbox 1200 zur Verfügung, die Leistungen up to 1.2 kW unterstützen.

What is the service life of the fuel cell?

The service life of a fuel cell depends on various factors, including the type, the operating conditions and the respective manufacturer.

Sunfire remote solid oxide fuel cells for example up to 30,000 hours running time before a replacement is required.

This durability makes them Ideal for long term applications in verschiedenen Bereichen, from stationary energy systems to mobile solutions.

Sunfire - Brennstoffzellengenerator zur Stromerzeugung
Sunfire-Remote fuel cell for power generation
Reliable operation even under harsh conditions

Die Power generation mit the Sunfire-Remote Fuel cell is even extremely reliable at extreme temperatures from -40 to +55 degrees Celsius. This ensures a continuous power supply, regardless of the ambient conditions, and makes the fuel cell particularly suitable for demanding areas where a stable power supply is of crucial importance.

Integration into existing systems

The solid oxide fuel cell can be seamlessly integrated into hybrid power supply systems consisting of different energy sources such as solar, wind power or batteries. This ensures a continuous and reliable power supply. In combination with a photovoltaic system, the fuel cell can achieve an impressive output of 1.2 kilowatts. 

This makes them the ideal companion for energy-intensive, off-grid applications such as telecommunication towers, surveillance cameras or satellite systems. Especially for off-grid projects that require more power, we have developed the mobile Sunfire Remote Powertrailer 1200 and the Sunfire Remote Powerbox solution.

Test us and convince yourself first of all of our service and the individual design possibilities, for your project. More detailed information, we have here compiled.

Sustainable electricity production made easy: Our FAQ on the Sunfire remote fuel cell
Operating mode

Yes. Basically, our devices are developed for continuous operation. Therefore, they also achieve the longest stack life under these conditions. Frequent and rapid startup and shutdown, on the other hand, can have a detrimental effect on performance. This is because the stacks reach temperatures of around 800 °C in the core system. Please contact us if you want to integrate Sunfire-Remote into a frequent start-stop operation.

Yes, you can back up your application with Sunfire-Remote, e.g. in case of a longer power failure. The maximum duration of the bridging time is determined by the amount of stored fuel. The main advantage over diesel gensets is the significantly lower maintenance and servicing costs for the generator and fuel tank.

It should be noted that the Sunfire remote is based on high-temperature solid oxide fuel cells (SOFC). They reach temperatures of around 800 °C in the core system. A start-up process takes between 4 and 8 hours, depending on the device type and ambient temperatures. During this time, a battery must provide the energy for the customer load and the start of the Sunfire Remote. Our experienced team will be happy to assist you with design questions.

This is easy to implement. Sunfire-Remote has an IP gateway that can be integrated into the customer's network. A combination with mobile routers is also possible.

Sunfire-Remote is currently approved and certified for use with propane and natural gas. This means that it can be used with piped natural gas, CNG, or with LPG with a propane content of >95% as a logistical fuel in cylinders and tanks. In the unit, a reformer converts the fuel into a hydrogen-rich gas (reformate), which is then electrochemically converted in the fuel cell stack.

For sustainable and emission-free operation, we recommend biogenic propane from renewable resources or synthetic e-propane from renewable electricity.

Our fuel cell units have an electrical efficiency of about 30 %. As a rule of thumb, 3.33 kWhchem fuel is needed to generate 1 kWhel. Also, there is 12.9 kWh of chemical energy stored in 1 kg of propane. Thus, about 3.87 kWhel can be generated from 1 kg of propane.

The devices are currently not suitable for operation with pure hydrogen. This is mainly because hydrogen cannot be readily used as a logistical fuel.

To store the same amount of chemical energy as propane, hydrogen requires more than five times the volume and the cylinders are nearly eight times the weight relative to the energy produced. In many off-grid applications, there is not enough space to store such quantities of fuel.
In addition, transport, storage and refueling with hydrogen are currently subject to strict safety regulations.

Nevertheless, operation with hydrogen will be possible in the medium term. Sunfire is developing concepts to be able to operate its fuel cell devices in hydrogen networks in the future.

We keep operating costs low. Because our fuel cells run unattended for up to 10,000 hours, maintenance and service costs are unbeatably low. The high efficiency also leads to a reduction in operating costs. Another positive aspect is that the fuels used are available at low cost almost everywhere in the world.

We will be happy to support you with the profitability calculation for your application!

Installation & Service

Our customers appreciate the simple installation. To put the units into operation, only the exhaust pipe, the gas supply and the battery need to be connected. For Sunfire Remote 900, a cooling circuit is additionally required. After all connections have been made, the unit can be switched on directly and monitored via the integrated IP interface.

Liability for defects shall commence at the time of assembly and commissioning, but no later than 3 months after delivery.

Sunfire is liable for defects that are due to material or manufacturing defects within the scope of the legal liability for material defects according to the General Terms and Conditions of Sale and Delivery.

The liability applies for a maximum of 2 years or 15,000 operating hours with a maximum of 30 cold starts (heat-up cycles) during the service life of the core module - whichever occurs first - within the scope of the statutory liability for material defects.

Individual adjustments

If your energy requirements are significantly higher than the generated energy of one device, two devices can be operated in parallel. In this case, we match the settings precisely to the respective requirements.

The coupling is uncomplicated. In most cases, neither a disconnector nor an interface between the devices is required. They run completely independently of each other by monitoring the state of charge (SOC) of the batteries.

In remote areas with limited seasonal access, it may be useful to have an additional fuse. To further increase reliability, two devices can be connected in parallel. In this case, the primary device is configured for continuous operation. The secondary device will only turn on if the other device is no longer able to charge the battery. This unlikely event may occur due to a fault or degradation at the end of the core system's life.

Many of our customers use Sunfire-Remote in photovoltaic hybrid systems. Our devices are well suited for this type of application. However, such installations require careful planning. All system components must be well harmonised to ensure reliable operation over the long term. As a rule, the photovoltaic system generates the required electricity in summer, while the fuel cell takes over operation in winter when solar radiation is low. This interaction reduces fuel consumption and logistical costs. As the operating hours of Sunfire-Remote are also reduced, the maintenance intervals and the service life of the fuel cell core system are extended.

Hybrid installation with small wind turbines is not recommended due to the high volatility of wind generation.

The logistically cost-effective alternative to hydrogen power generation
Which fuel for the fuel cell?

The Sunfire remote fuel cells are characterised by their versatile mode of operation, using conventional propane and natural gas. Compared to hydrogen, they score not only with their impressive efficiency, but also with their lower weight and lower costs. These properties make them particularly attractive, especially in off-grid applications where both energy density and financial aspects play a decisive role.

The use of propane and natural gas not only enables more cost-efficient utilisation, but also helps to overcome the hurdles associated with hydrogen infrastructure. This makes the Sunfire-Remote 400 fuel cell a practical and realisable solution for various applications.

In off-grid environments where conventional power sources may not be available, the Sunfire Remote 400 fuel cell opens up new possibilities. Its scalability makes it possible to effectively cover the energy requirements of different projects. Whether for emergency power supply in remote areas, ensuring communication in crisis situations or as a backup solution for photovoltaic systems, the Sunfire-Remote 400 fuel cell provides a reliable power supply, regardless of the conditions.

The wide range of possible applications is further enhanced by the robust design of the Sunfire Remote 400 fuel cell. Even under extreme conditions, at temperatures from -40 to +55 degrees Celsius, it guarantees a reliable power supply. These properties make it a reliable power source in a wide range of environments and applications.

In summary, the Sunfire Remote 400 fuel cells are making a decisive contribution to revolutionising the power supply in off-grid applications. Thanks to their outstanding efficiency, scalability, flexibility and reliability, they set new standards and enable a sustainable and effective energy supply in various scenarios.

Do you need more information about the possibilities and the implementation of your project? Then do not hesitate to contact us. Our service team will be at your disposal immediately.

Für welches Projekt benötigen Sie eine zuverlässige Stromversorgung?

Our experts will be happy to share their many years of experience with you

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