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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  • Sunfire-Remote+

    Sunfire-Remote units can be configurated at your requirements. Suitable for temperature ranges of -40 – +50°C and available with battery packs, power converters, remote monitoring and communication equipment, housing and integration.

    Adapt it to your needs.

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Technical Specifications


Sunfire-Remote 400 Sunfire-Remote 900

Electrical power

350 W

850 W

Daily electrical capacity

8.4 kWh/day

20.4 kWh/d

Electrical power nominal

150 – 350 W 350 – 850 W

Rated voltage

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

Thermal Output

max. 1,250 W @ 850 W elec. via cooling circuit


Propane/natural gas Propane/natural gas

Fuel consumption

part load 74 g/h (0,95 kW) – full load 101 g/h (1,3 kW)

part load 90 g/h – full load 210 g/h

Gas connection

8 mm

 1/2" male

Pressure of gas connection

15-50 mbar

15-50 mbar


40 kg

150 kg


550 x 480 x 400 mm

680 x 1.150 x 600 mm

Ambient temperature for operation

-20 °C to +40 °C

-20 °C to +40 °C

Water / lubricant consumption

none none

Noise emission

< 50 db(A)

< 50 db(A)

IP protection category

IP20 IP20


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

Essential accesories for operation

  • Battery VRLA 24 V, >300 Ah
  • 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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