Sunfire-Remote can bring reliable power generation to almost any application. A modular design makes Sunfire-Remote adaptable to your specific needs – with optional features such as solar panel connectivity or integrated into a PowerTrailer or a PowerBox with a range of additional options. No matter the situation, Sunfire-Remote can be trusted to deliver clean, reliable and cost-effective off-grid power to your project. Only one annual proactive maintenance and the use of robust long-life industrial components keep costs down.

Energy conversion at its best

Sunfire-Remote’s modular nature together with it`s industry leading performance and reliability makes it well suited to serve a wide range of industries. Sunfire-Remote operates in the harshest environments – bringing highly autonomous operation and low maintenance together in a robust design. It boasts an electrical efficiency of up to 35 %, almost double that of traditional diesel or gas generators, leading to emission and cost savings.

Our technology offers unmatched flexibility, working with Propane (LPG) or natural gas; while not emitting any significant pollutants. Few moving parts are leading to a long lifetime, and a reduced need for regular maintenance. This makes Sunfire-Remote perfectly suited for use in hard to reach locations.

Sunfire-Remote 400

Our compact Sunfire-Remote 400 unit is perfectly suited for stationary or semi-mobile applications. Easy to integrate due to small size and low weight.

Small but powerful.


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Sunfire-Remote 900

Stationary off-grid applications with higher power needs can be supplied safely with our Sunfire-Remote 900. Heat can be utilised optionally for heating additional equipment by reaching highest total efficiency.

Energy for any situation.


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Technical Specifications


R400 R900 Propane R900 Natural Gas


Propane/Natural Gas

Propane Natural Gas

Electrical power

350 W

850 W  750 W

Daily electrical capacity

8.4 kWh/day

20.4 kWh/d  18 kWh/d

Electrical power nominal

150 – 350 W 350 – 850 W 350 – 750 W 

Rated voltage

24 VDC varies with battery voltage between 21 - 29 V 24 VDC varies with battery voltage between 21 - 29 V
 24 VDC varies with battery voltage between 21 - 29 V

Thermal Output

none max. 1,250 Wth @ 850 Wel max. 1,100 Wth @ 750 Wel 

Fuel consumption

Part load: 74 g/h
Full load: 101 g/h (Propane)

Part load: Part load 0.08 m3/h
Full load: 0.117 m3/h (Natural Gas)

Part load: 110 g/h
Full load: 210 g/h

Part load: 0.141 m3/h
Full load: 0.272 m3/h

Gas connection

8 mm

 1/2" male   1/2" male

Pressure of gas connection

18-50 mbar

18-50 mbar

 18-50 mbar


65 kg

185 kg

 185 kg

Dimensions (LxWxH)

660 mm x 540 mm x 400 mm

605 mm x 685 mm x 1120 mm

 605 mm x 685 mm x 1120 mm

Ambient temperature for operation

-20 °C to +55 °C

-20 °C to +55 °C

 -20 °C to +55 °C

Water / lubricant consumption

none none  none

Noise emission

< 55 db(A)

< 50 db(A)

 < 50 db(A)

IP protection category

IP50 IP20  IP20


Ethernet TCP/IP  Ethernet TCP/IP Ethernet TCP/IP 

System scope

Sunfire SOFC core system, battery management, desulfurization cartridge
Exhaust tube 1 m

Sunfire SOFC core system, battery management, desulfurization cartridge

Sunfire SOFC core system, battery management, desulfurization cartridge

Essential accesories for operation

  • Battery VRLA 24 V, >300 Ah
  • liquid cooling circuit required
  • Exhaust system
  • Battery VRLA 24 V, >300 Ah recommended
  • liquid cooling circuit required
  • Exhaust system
  • Battery VRLA 24 V, >300 Ah recommended


Average performance at beginning of life. Performance over its operating life may vary due to integration and installation concept as well as operating conditions.

Frequently asked questions

How high is the fuel consumption? How long does a full tank last?

Sunfire-Remote fuel cell units have an electrical efficiency of approx. 30 %. As a rule of thumb, there is a need of 3.33 kWhchem from fuel for 1 kWhel and 12.9 kWh chemical energy is stored in 1 kg Propane. Hence, about 3.87 kWhel can be generated from 1 kg Propane.

For a detailed fuel calculation a load curve, including voltage levels and peak power information is required to consider battery changing and conversion equipment efficiencies.

Are Sunfire-Remote fuel cells noisy?

No, they operate with low noise and without vibration. Noise mainly occurs from fans as well as a burner during start-up, optional additional noise adsorber are available.

What is the maintenance effort for Sunfire-Remote?

The Sunfire-Remote systems do not contain any lubricants and only two blowers as components with rotating parts. Hence, the annual proactive maintenance is limited to following activities: visual inspection, cleaning, change of desulfurizer cartridges, gas and air filters, gas leakage test.

How does the Sunfire fuel cell work?

The heart of the Sunfire-Remote units are Solid Oxide Fuel Cells (SOFC). These are high temperature fuel cells which operate at temperatures between 800 and 900 °C. Similar to other fuel cell technologies they compose of an anode and a cathode separated by a ceramic electrolyte. This principle is similar to batteries with the difference that fuel cells are continuously fuelled. The ceramic electrolyte conducts oxygen ions from the cathode to the anode whilst electrons are sent to an external circuit in order to produce electricity. At the anode, the oxygen ions combine with the fuel to produce water and carbon dioxide. Heat and carbon dioxide are also generated at the anode. Unlike conventional fuel cells, the Sunfire fuel cells run on hydrocarbons such as natural gas or propane.

Find out more

Sunfire is the recognised global industry leader in solid oxide technology with hundreds of systems installed and longest operation in customer applications. Founded in 2010, Sunfire is one of the world's most innovative companies and belongs to the Global Cleantech 100 companies since 2014. Next to development and production of high-temperature fuel cells (SOFC) also high-temperature electrolysers (SOEC) belong to the product portfolio of Sunfire.

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