Stack
Biomass.
Each year, Staack Energy receives and processes recycled creosote-treated railroad ties (CTRTs). Through a specialized grinding and sizing process, we convert CTRTs into Stack Biomass — a reliable, sustainable alternative fuel designed for use in industrial boilers and kilns.
The final chip size is custom-engineered to meet end-user specifications. The product can be delivered as a standalone fuel or preblended/comingled with primary, post-industrial, or other alternative fuels. As both fuel producers and transportation professionals, Staack Energy delivers a certifiable chain-of-custody logistics solution from railroad property, through our production terminals, directly to your boiler or kiln.
The numbers.
- Feedstock
- Creosote-Treated Railroad Ties
- Chip Size
- Custom-engineered to spec
- Moisture
- Low — engineered for high BTU
- BTU Content
- Comparable to many coals
- Classification
- EPA Categorical Non-Waste Fuel
- Carbon Intensity
- Zero CO₂ (renewable)
- Delivery
- Standalone or preblended
- Chain of Custody
- Certifiable, end-to-end
Advantages
& values.
Sustainable Supply
Railroad tie replacements have grown steadily since the 1980s, ensuring a consistent CTRT supply for decades to come.
Regulatory Compliance
Classified by the EPA as a Categorical Non-Waste Fuel.
Emissions Benefits
Demonstrated reductions in NOx, SOx, VOCs, chlorine and mercury compared to most coals.
High Heat Value
Low-moisture product with higher BTU output than woody biomass and a BTU content comparable to many coal sources.
Environmental Value
Considered a renewable fuel with zero CO₂ intensity under carbon intensity calculations.
From rail yard
to burner.
Where it burns.
Boiler and kiln-based clients across the U.S. are adopting Stack Biomass as part of a shift away from fossil fuels — a proven replacement or supplement for coal and other less efficient alternative fuels.
- Industrial boilers
- Lime, cement and aggregate kilns
- Coal-displacement / co-firing
- Combined heat and power (CHP)
- Process heat for manufacturing
- Alternative-fuel blends
Need a quote?
Tell us tonnage, chip size and delivery point. We'll respond within one business day.
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