Quiet backup power in the field - SFC Energy’s EFOY Pro 2400 keeps equipment running

The EFOY Pro 2400 from SFC Energy targets professionals who need quiet, long-lasting off-grid power for sensors, cameras and communication systems. What looks like a compact metal box hides a methanol fuel cell that quietly replaces noisy generators.

Reviewed: ad hoc news Accessory & Components desk. Edited and checked on 2026-06-17, 21:32. Details in the imprint.

The EFOY Pro 2400 from SFC Energy looks almost unspectacular at first glance, a grey box with a status display and a few ports, but in the field it quietly feeds cameras, sensors or radio links for weeks without anyone noticing more than a soft hum.

What the fuel cell does

The EFOY Pro 2400 is a direct methanol fuel cell designed as a 12 or 24 volt DC power source for industrial and security applications, delivering up to around 110 watts of power in continuous operation. It automatically starts when the connected battery voltage drops and stops once the battery is recharged.

Instead of petrol or diesel, the system uses sealed methanol cartridges branded as M5 or M10, which are clicked into place like canisters and can keep remote stations supplied for weeks. In practice, users mainly hear relays and a small fan rather than an engine, which makes the unit suitable for discreet installations near residential areas.

How it fits into real deployments

SFC Energy positions the EFOY Pro 2400 for off-grid CCTV masts, environmental monitoring stations and traffic systems that need power continuity through bad weather and long winters. In these setups the fuel cell often works alongside solar panels, taking over when clouds or snow limit solar output.

The metal housing is compact enough to fit in outdoor cabinets or transport cases, so integrators can build complete power boxes with battery, charger and fuel cell on a small footprint. Cables, fuses and mounting rails are still up to the installer, which gives flexibility but also demands some planning.

Strengths compared with generators

One obvious advantage over a small petrol generator is the maintenance profile, as the EFOY Pro 2400 does not need oil changes and produces no soot or particulates at the point of use. There is also no manual start, pull cord or choke, which remote operators appreciate when the weather turns rough.

Fuel efficiency is another selling point, because the system converts methanol directly into electricity with relatively low losses compared to charging batteries via an engine-driven alternator. For customers paying for helicopter hours to reach mountaintop stations, fewer trips for refueling can quickly cover the higher initial hardware cost.

Where users must compromise

Despite the quiet charm, the EFOY Pro 2400 is not a universal power source, and its maximum output in the low three-digit watt range limits it to low and medium loads. Larger radio repeaters, satellite uplinks or construction tools may overwhelm the unit unless cleverly buffered with batteries.

Operators also have to accept a strict fuel diet, as SFC Energy’s methanol cartridges follow their own standardized format and cannot simply be replaced by generic camping fuel bottles. That makes logistics predictable but ties long-term users closely to the vendor’s distribution network.

How it relates to SFC Energy’s business

SFC Energy highlights its EFOY Pro line as a core pillar of its clean off-grid power portfolio for government, security and industrial customers, alongside larger hydrogen-powered systems for higher loads. Shares of SFC Energy AG (DE0007568578) trade on Xetra in euros.

Key facts on the EFOY Pro 2400

• Product: EFOY Pro 2400
• Manufacturer: SFC Energy AG
• Category: Accessory/Spare part (professional power module)
• Launch: Marketed as part of the EFOY Pro series in the 2010s, still current
• RRP / Price: Typically sold via project integrators and distributors, prices vary by configuration
• Availability: Available via specialist distributors and system integrators in Europe and other regions
• Target group: Operators of remote monitoring, security, traffic and communication systems needing reliable off-grid power
• Highlight / USP: Quiet, low-maintenance methanol fuel cell that automatically recharges batteries in hybrid solar and off-grid setups

This article was AI-assisted and editorially reviewed. Product information without guarantee; prices and availability may change at short notice. No investment advice, no buy or sell recommendation. Stock-market transactions involve risks up to total loss.