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Idle Reduction & Energy Storage System (IRESS)

Dependable’s exclusive auxiliary power storage system, the Idle Reduction & Energy Storage System (IRESS) provides clean and consistent power while reducing emissions, fuel & maintenance costs, and increases the life cycle of the vehicle. Designed to provide clean and consistent power whenever you need it, wherever you need it.

Effectively reduce or diminish any idling with an automatic custom programmed engine shutdown maintaining HVAC capabilities and more. The all-electric APU enables responders to reduce idling time, cut CO2 emissions, and improve firefighter safety without specialized charging infrastructure.

Fleet Benefits - What are the benefits of using IRESS? 

  • Reduced emissions
  • Reduced fuel costs
  • Reduced maintenance costs
  • Increased life cycle of vehicle


Powered by Volta Power Systems technology, Dependable’s Idle Reduction & Energy Storage System provides each equipped vehicle with a scalable energy storage pack and customized distribution system.

IRESS provides all the power necessary for warning and scene lights, air conditioning, body lights, tank circulation, communication electronics and other loads for several hours without idling or using an auxiliary generator. IRESS does not require the installation of specialized charging infrastructure, simplifying the integration process for fire departments and municipal fleets.

Learn more about our collaboration with Volta Power Systems and their technologies HERE

Are you looking for idling solutions for your apparatus and fleet? Contact us for more information and technical specifications on Dependable's Idle Reduction & Energy Storage System - Request more info!

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