A large-scale project

Over the last six decades, guided by its values, Demers Ambulances has never stopped innovating. Demers Ambulances has successively developed ten generations of ambulances, each more technologically advanced than the last, and each time improving the experience of ambulance drivers and their patients.

Our world is changing, and environmental issues are driving governments and industries to innovate to deliver a cleaner, healthier world for future generations. As an industry leader, the Demers Ambulances team has embarked on an innovation project that reinvents the ambulance, both in its zero-emission engine and in the work environment it provides for the paramedics of today, and tomorrow.


No innovation embodies the unique Demers values of customer centricity, inspiring leadership, showing integrity, embodying the family spirit, and the pursuit of excellence – the way the Demers eFX Ambulance does.

These values not only serve as the foundation for the vision of the Demers eFX ambulance, but also guide every single innovation-decision from conception to commercialization, and beyond.

When performing medical maneuvers or reaching for important equipment, paramedics often have no choice but to stand or move while the vehicle is in motion. This puts their own lives at risk. Every year, too many paramedics are forced to end their careers because of accidents sustained on the job. Some even lose their lives or are off work for a long period of time.

Working with Lion Electric to develop the ambulance and its chassis, Demers redesigned everything with ergonomics and safety in mind.

As a result, a new 4-point seatbelt on an articulated arm was conceived and designed with the ambition of enabling the first responder to provide all patient care without becoming detached, with unmatched mobility and without compromise. This innovation is a game-changer for the industry!

The Demers eFX ambulance is 20% more spacious than its equivalent conventional ambulance (MX 164). When on the move, it offers a much more comfortable environment with less vibration and noise than conventional ambulances, thanks to adaptive suspension and a stretcher position relocated between the axles.

The Demers eFX ambulance is the world’s first 100% electric Type III ambulance. It offers a completely zero-emission1  alternative to conventional ambulances.

On average, an ambulance in service remains stationary at the stand-by point more than 50% of the time. Three batteries, each with a capacity of 70 kWh, enable the electric accessories to operate without the need for a motor, all in a zero-emission environment.

The Demers eFX ambulance is equipped with regenerative brakes, transforming the electric motor into a generator. This feature not only reduces brake maintenance costs, but also optimizes the vehicle’s overall energy consumption.

 1 Where electricity production is carbon-neutral.

On average, the Demers eFX ambulance reduces energy costs by around 80% (varying from region to region) and maintenance costs by 60%, compared with Type III ambulances powered by combustion engines.

Over and above energy costs, maintenance of an electric vehicle is far less expensive than that of conventional vehicles. Because of its structure, an electric vehicle requires less maintenance. An electric motor comprises 18 moving parts, compared with 18,000 in a diesel engine. This simple fact considerably reduces the risks associated with defects, breakage or wear of the parts that make up a motor. Just by eliminating oil changes and spacing out your brake services, this gives you a good idea of how much time you save!

Ultimately, maintenance-related downtime on an eFX ambulance will be much rarer and shorter than on a conventional ambulance, making this electric ambulance a major asset to your operations.

Finally, the paramedic assigned to patient care should be able to be seated, with seatbelt fastened, 5 to 10 times more often than in a conventional ambulance. As a result, insurance premiums, claims and absence costs due to illness or injury should decrease significantly, for continuous, optimal service.

Une ambulances truffée d'innovations

Les produits suivants sont protégés par des brevets dans différents pays. Ce site Web est fourni pour satisfaire aux dispositions de marquage virtuel des brevets de diverses juridictions. La liste de produits suivante peut ne pas être exhaustive et d'autres produits peuvent être protégés par un ou plusieurs brevets.

Type : Chargeur rapide CC
Puissance de sortie maximale : 100 kW*
Voltage de sortie : 800 V CC
Connecteur : SAE J1772 Combo (CCS1)

About the demers innovation team

Since 2016, Demers has been pursuing its ambitious vision to revolutionize ambulance transport. With the support of key government partners, the company has assembled a multidisciplinary R&D team of nearly 20 engineers, industrial designers, mechanical technicians and other industry experts, accumulating over 100 years of experience and know-how in the field of electric vehicles.

No compromises.

Demers eFX Ambulance is the result of the genius and innovation of their combined knowledge and expertise. That’s how the Demers eFX Ambulance is said to have been designed with intention: to improve the safety of ambulance technicians, the comfort of patients, and the future of our planet – at a lower cost.

By working closely together, the Demers and Lion Electric engineering teams, along with dozens of paramedics, were able to imagine and design the ambulance of the future. The new Demers eFX ambulance is designed without the layout constraints imposed by conventional ambulance chassis.


The eFX ambulance is built on a Lion5 chassis specially designed to be 100% electric. Over the past decade, Lion Electric has established itself as a leader in the zero-emission heavy-duty vehicle industry, having delivered more than 1,100 all-electric heavy-duty vehicles in North America. This fleet of vehicles has covered more than 16 million kilometers since 2016.

In addition to being a trusted partner, Lion Electric is an innovative manufacturer of zero-emission vehicles. They produced the chassis used to build the Demers eFX ambulances. The chassis supplied by Lion Electric are specially designed to build an ambulance, a first in the ambulance industry.

Lion Electric is also a leader in the electrification of transportation in North America, confident that the decarbonization of transportation can contribute to the improvement of our society, our environment and, above all, our quality of life.

About Mobel

MOBEL, a mobilizing development project for specialty electric heavy-duty vehicles, in which Demers et Lion is participating, benefits from financial assistance from the Quebec government and is in line with the objectives of the Plan for a Green Economy 2030.



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