ACS Railroad Solutions builds on the success of its award-winning Electrolyte Idle Reduction system with the introduction of the TwinPulseTM Locomotive Energy System

Two 27.6 kWh Lithium-ion Phosphate (LFP) batteries are connected in parallel to provide a unique and advantaged solution to minimize fuel usage & GHG emissions and provide unmatched restart reliability

The Next Generation in Idle Reduction

Provides standard AESS functionality coupled with 55 kWh energy module that keeps key locomotive systems (ex: HVAC) powered without idling the locomotive

  • Minimize the motivation for system Override
  • Drastically reduce Air Pressure drop as a source of engine restarts
  • Lead Acid battery discharge eliminated as a restart cause

Extended locomotive engine shutdown intervals (up to 12 hours) can lead to:

  • Up to $100K in fuel savings*
  • Up to 30 Tons of GHG emissions avoided*

* Per locomotive/per year

Increase Locomotive Availability by Replacing Lead Acid batteries with Lithium-ion Phosphate Technology
  • 3- 4 times greater life expectancy due to the superior chemistry of an LFP system
  • Near elimination of flat-line battery service interruption through parallel wiring starting redundancy and StrandSafeTM technology
  • Zero Lifetime Maintenance
  • Improved safety due to elimination of acid splash and arc flash incidents
  • Drop-in Replacement – no need to pay for OEM software revisions
Remote Data Dashboard can validate your improved Idle Reduction efficacy and offer insight in to how to generate greater savings
  • Highly visible widget quantifies fuel savings and GHG emission avoidance
  • Opportunities for further savings are highlighted by displaying instances where the locomotive either exited Battery Mode or was unable to enter it due to manual intervention
  • Compare fuel savings across your fleet and review usage patterns which may reveal why some locomotives perform better than others
  • Dig deeper with holistic locomotive data including locomotive usage and location history, control system recorded errors and logs of “working” sessions

View Presentation to learn more on how you can concurrently reduce fuel usage/GHG emissions and greatly reduce the chance for a stranded locomotive due to a flat line battery

Learn Why Traditional AESS Systems May Not Provide the Desired Results

TwinPulse Locomotive Energy System Marketing Bulletin

TwinPulse Remote Data Dashboard Marketing Bulletin

ACS-RS Electrolyte Ilde Reduction System Featured in NS 2025 Sustainability Report (Page 8)