FeX stores electricity as high-temperature energy and delivers firm industrial heat where grid capacity, peak demand, or infrastructure limits electrification.
FeX stores electricity as high-temperature thermochemical energy and delivers firm heat through existing industrial heat loops, steam systems, or process heating infrastructure.
Store electricity off-peak and deliver heat when operations demand it.
Stable industrial heat up to 900°C for furnaces, steam, and process systems.
Electrify heat without costly transformer, transmission, or capacity expansion.
Maintains stable heat supply during grid constraints.
Industrial operations need reliable high-temperature heat to keep production stable.
Containerized heat infrastructure that integrates directly into your existing energy systems.
On-site renewables, grid electricity where available, or curtailed power.
Iron-based thermochemical cells. Energy stored for days or weeks.
Up to 900°C heat via air, glycol, steam, or optional CHP.
~1/10th the physical
footprint of lithium-ion batteries.
Peak output temp
Per container
Footprint vs H₂
Industrial payback
LCOS at scale
Potash processing requires continuous high-temperature heat for drying. FeX stores electricity off-peak and delivers stable heat directly into the drying process.
4–7 years
~$0.04/kWh
~5.6 Mt /25 yrs
~1/10th hydrogen alt.
Deploy on-site. Validate under real heat loads. Generate bankable performance data to support scale-up decisions
Pilot deployment currently underway with support from: Financed by Government of Canada
Assess system performance under real operating conditions.
Collect operational insights to inform deployment decisions.
Use validated results to define your deployment strategy.
What temperatures can the FeX system deliver for industrial heat applications?
The FeX Iron Arc Reactor delivers sustained thermal output from 200°C (lower also possible) to 900°C, covering the temperature range required for industrial processes including drying, calcination, furnace heating, steam generation, and chemical processing. This range is not achievable with lithium-ion batteries and most conventional thermal storage alternatives, and is challenging with direct electrification since power capacity is often unavailable or too costly at certain peak-demand times.
How does FeX compare to hydrogen for industrial heat electrification?
Both can reach high temperatures, but hydrogen carries significant infrastructure, safety, and cost disadvantages at industrial scale, including storage complexity, pressure handling requirements, and high levelized costs. FeX stores energy in solid iron at ambient conditions, with no pressure vessels, no combustible gas handling, and a footprint approximately 1/10th that of hydrogen-equivalent alternatives. Levelized cost targets around $0.04–0.05/kWh compare favourably against green hydrogen for process heat.
Does FeX require a new grid connection or grid upgrade to deploy?
No. FeX operates behind the meter, charging from existing electricity sources during off-peak or low-cost periods and discharging as heat when operations demand it. This is specifically designed for industrial sites facing grid expansion delays, insufficient connection capacity, or peak demand charges, removing the grid constraint without requiring utility coordination.
Can FeX integrate with existing plant industrial heat infrastructure?
Yes. The modular system integrates directly into existing industrial heat loops, steam systems, and process heating infrastructure. It is designed to work alongside existing equipment rather than replace it wholesale, reducing integration risk and enabling phased deployment as a supplement to current energy supply before full displacement.
What is the storage medium and is it hazardous?
Energy is stored in solid iron, the Earth's most abundantly produced metal. Iron is non-toxic, non-flammable, chemically stable, and requires no special containment or pressure management. There are no liquid electrolytes, no combustible fuels, and no high-pressure gas storage on site.
How long can the FeX system store industrial heat?
Storage duration ranges from multi-hour, multi-day to multi-week depending on configuration and container count. This makes FeX suitable not just for peak shaving but for sustained process heat delivery across extended production cycles, including during grid outages, supply disruptions, or planned maintenance windows.
What is the system footprint for a typical industrial deployment?
A single 40-foot container delivers up to 9 MW of power output and holds 10x more energy than lithium-ion batteries, with a physical footprint approximately 1/10th that of a comparable lithium-ion installation. Multiple units can be deployed in parallel to meet larger thermal loads within constrained brownfield site boundaries.
What is the expected payback period for an industrial heat deployment?
Based on techno-economic analyses across multiple industrial verticals, payback periods typically range from four to seven years depending on site configuration, incumbent fuel costs, and available incentives. In high-cost fuel and grid-constrained scenarios the economics improve materially.
FeX delivers reliable high-temperature heat where grid capacity is limited.
Iron-based energy storage delivering firm heat and power on demand.