Reliable power,
no matter where you need it.

Completely self-sufficient
reliable power supply for industrial applications

Reliable, off-grid power is a challenge in any application. EFOY Pro Hybrid systems provide fully autonomous, sustainable, reliable and maintenance free, off-grid power solutions capable of handling the harshest environments.

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Frequently Asked Questions

Why choose an EFOY Pro remote power system?

Conventional power sources are often unreliable or offer only short periods of supply. Solar-powered systems can’t guarantee a reliable power supply throughout the whole year, batteries have very limited autonomy and generators produce harmful emissions. EFOY Pro fuel cells are the perfect power generator for stationary and mobile applications. Best of all, the EFOY Pro’s streamlined footprint, extended autonomy and remote monitoring capabilities all combine to provide users with a 30 – 50 % lower total cost of ownership and 99 % reduction in CO2 equivalent emissions.

How does the EFOY Pro work?

EFOY fuel cells are based on DMFC (Direct Methanol Fuel Cell) technology, which converts methanol into electricity through a single stage catalytic conversion process. They’re one of the cleanest, most efficient ways to generate power and the perfect complement to solar. When a solar array is unable to deliver sufficient power, the EFOY senses the battery voltage drop. It automatically switches on to charge battery bank before returning to stand-by mode.

How long does the methanol for the fuel cell last?

EFOY Pro fuel cells supply off-grid power for months without user intervention. We size EFOY Pro Hybrid solutions to meet customer-specific load and location requirements, providing 12 – 18 months of fuel autonomy. Maintenance of the EFOY Pro fuel cells is not required.

For which applications is the EFOY Pro designed?

Our power supply solutions are used anywhere solar modules, diesel generators and batteries reach the limits of their capabilities: EFOY fuel cell products provide a reliable, environmentally friendly, maintenance free source of power – anywhere power is needed.

Can an EFOY Pro fuel cell also be monitored?

EFOY Pro fuel cells can be monitored remotely. The EFOY Pro has Modbus capabilities to connect to a SCADA systems or we connect using our GSR modem. It notifies the user of upcoming fuel cartridge replacements, ensures planning safety and reduces the need for administration and maintenance.

How much does an EFOY Pro cost?

EFOY Pro hybrid power systems have 30 – 50 percent lower total cost of ownership versus standalone solar or TEG system. Contact an EFOY product specialist at Simark for pricing information on a system that suits your off-grid power requirements.

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The EFOY Pro models

EFOY Pro fuel cells are intelligent power generators that can monitor a battery’s charge status and recharge it automatically. Once the battery is recharged, the fuel cell returns to standby mode – no maintenance or user intervention required.

The EFOY Pro fuel cells are available in various performance categories, with outputs ranging from 45 W for small-scale power systems to a 500 W module for telecommunications applications. With a Cluster Controller, multiple devices can also be connected to one battery system, providing multiple kW outputs.

EFOY Pro 800 Duo

Power output
45 W

Nominal voltage
12 V DC / 24 V DC

88.3 kg


EFOY Pro 2400 Duo

Power output
110 W

Nominal voltage
12 V DC / 24 V DC

99.3 kg


EFOY Pro 12000 Duo

Power output
500 W

Nominal voltage
24 V DC / 48 V DC

32 kg


EFOY Pro Hybrid Solutions

Every project has specific requirements. At Simark, we can modify our standard packages or develop a fully customized solution to ensure our EFOY Pro Hybrid energy systems to meet the demands of your project.

Learn more about SIMARK’s Hybrid Solutions

EFOY Pricing information

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EFOY Pro – Ideal energy solutions for off-grid and mobile applications

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