ATEN (Accretive Thermal Efficiency Node) is a breakthrough waste heat recovery technology that generates zero-emission baseload electricity from energy that would otherwise be vented to the atmosphere. By capturing waste heat from gas turbines and industrial processes, ATEN creates additional power without burning extra fuel, reducing both costs and emissions.
Transforming Waste Heat into Reliable Baseload Capacity
energy from nothing
zero-fuel electricity
The ATEN Advantage
Emissions Reduction
- Increases generation efficiency by 20-30% with zero additional emissions
- Emissions intensity of a combined OCGT/ATEN asset is ~15-30% lower than an OCGT
- Significant abatement: millions of tonnes CO₂ over project lifetime
- Cost-effective emissions reduction with potential net benefit of $80/tCO₂ abated
Implementation Readiness
- Rapid deployment to address immediate capacity requirements
- Streamlined regulatory pathway with minimal approvals
- 18-month construction timeline from financial close (6-9 months site works)
- Proven technology utilising established subsystems with NRW Primero and Mitsubishi Heavy Industries EPC project delivery
Economic Efficiency
- Unit operating costs of ATEN are <30% of an OCGT (~$30/MWh vs ~$120/MWh)
- Combined OCGT/ATEN asset operating costs are ~10-15% lower than an OCGT alone
- LCOE of ATEN is 65% of an OCGT ($95/MWh vs ~$145/MWh @$10.40/GJ delivered gas price)
- ~60% lower CAPEX and ~50% lower lifecycle cost compared to equivalent renewable capacity
- Waste Heat Recovery Unit: Captures thermal energy from gas turbine exhaust that would otherwise be vented, transferring it to a thermal oil carrier.
- Organic Rankine Cycle (ORC) Generation: Converts the recovered thermal energy into electricity through a specialised working fluid and turbine system.
The modular system is designed for minimal site footprint (typically within existing power station boundaries) and requires no additional transmission infrastructure, water resources, or operational personnel.
ATEN technology integrates seamlessly with existing power infrastructure:
How ATEN Works
waste to watts
Arrange a detailed technical and economic briefing on how ATEN can support your capacity and emissions reduction objectives.
Schedule a Technical Briefing