Transit & Trucks
HVAC electrification: the fastest and cheapest way to cut emissions.

The HVAC (Heating, Ventilation and Air Conditioning) system on public transit buses can consume more energy than driving the bus. Installing a battery system to power the HVAC can cut emissions just as much as electrifying the drivetrain. We retrofit a lithium battery system into in-service diesel buses to electrify the HVAC system, making this the quickest, most cost-effective way to dramatically reduce emissions. Even and ageing fleet of vehicles can be made significantly greener.

Microgreen can provide electrification for cabin HVAC or refrigeration systems in transport trucks. Electrification can be provided for a range of other loads as well: emergency lights; lift gates; waste collection mechanisms; and many others.



HVAC Electrification End-to-End Solution for Public Transit

HVAC Electrification for Public Transit MPPT Solar Charger Controller Very Flexible Solar Panels

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Public Transit HVAC Current System

Public Transit HVAC Clean Energy System Microgreen Battery


Features & Benefits

  • Custom-designed systems to match any bus model
  • Modular battery systems scalable to fit your needs
  • Fast charging (1-2 hours) for a full recharge between morning and afternoon routes
  • Battery management system (BMS) and energy management system (EMS) for optimal safety and efficiency
  • Light and compact
  • Warranty - 2 years on materials & workmanship
  • Optional vehicle-mounted solar panels to supplement plug-in charging
  • Option to add remote monitoring for easier fleet management
  • Option to lease

Service Process

  1. Initial consultation
  2. Feasibility assessment: assess vehicle and devise a solution with a payback period under 4 years
  3. Prototype the proposed solution
  4. Install and test the prototype in customer vehicle
  5. Develop production systems and install in customer’s service fleet
  6. After-sales service
  7. Lithium battery recycling

Best Return on Investment

  • HVAC consumes just as much fuel as the propulsion system.
    • 30% - 80% of total transit vehicle energy, depending on outside temperature.
  • Usually powered by engine via an alternator, or a dedicated diesel generator.
  • Opportunity to significantly reduce emissions (~50%) on diesel or hybrid buses.
  • Better ROI vs electrifying propulsion:
    • Same savings on fuel and emissions
    • Lower capital cost

Easy Way to Reduce Emissions

  • Simpler to electrify HVAC:
    • Easy retrofit to in-service diesel buses./li>
    • Less regulatory complexity
    • Can be implemented in 4 months

Low-Hanging Fruit

  • The fastest, cheapest way to start reducing emissions right now
  • Low-risk investment