How Many EV Chargers Does My Business Fleet Need?

It might seem logical that ten electric vehicles require ten EV chargers. But commercial fleet charging does not always work that way.

The right number of chargers depends on how far your vehicles travel, when they return to your workplace or depot, how long they remain parked, how much energy they need before their next shift and how much electrical capacity your site has available.

So instead of starting with: “How many vehicles do we have?” A better question is: “How much energy does our fleet need, and how long do we have to deliver it?” That is the foundation of good EV fleet charging design.

For businesses planning new fleet charging infrastructure, MPV Group can assess your fleet requirements alongside the electrical capacity of your site as part of a commercial EV charger installation in Sydney.

No. A business does not necessarily need one EV charger for every electric vehicle in its fleet.

Some fleets may benefit from having a dedicated charging port for every vehicle, particularly where vehicles all return to the depot at the same time and need to be ready again the following morning. Other businesses may be able to share chargers between multiple vehicles. For example, vehicles that:

• return at different times
• travel different distances
• only need occasional charging
• remain parked for long periods
• operate on different shifts

may be able to use a smaller number of charging points more efficiently.

This is why a simple one charger per EV ratio can result in either too much infrastructure or not enough charging capacity. The charging system should instead be designed around the actual fleet.

There are several factors MPV Group would look at before determining the appropriate number of charging points.

1. How Far Does Each Vehicle Travel?

Start with daily kilometres. A fleet vehicle travelling 40 kilometres each day will generally need significantly less energy replaced than a vehicle travelling 250 kilometres. That means two identical EVs can have completely different charging requirements depending on how the business uses them. When planning business fleet EV charging, look at the real operating data for each vehicle rather than simply the battery size.

Consider:

• average daily kilometres
• maximum daily kilometres
• route consistency
• city versus regional driving
• seasonal variations
• days when vehicles travel significantly further than normal.

A fleet charging system should have enough capacity to support normal operations while also allowing for reasonable fluctuations in vehicle use.

2. How Long Are the Vehicles Parked?

This is known as dwell time, and it is one of the most important parts of fleet charging design. A van that returns to a depot at 5 pm and does not leave again until 7 am has a long charging window. A service vehicle that returns for only one hour before heading to another job has a much shorter opportunity to charge. Longer dwell times can allow energy to be delivered over several hours. Shorter dwell times may require a different charging strategy.

3. How Much Charge Does Each Vehicle Actually Need?

Fleet vehicles do not necessarily return to base with an empty battery every day. In many cases, the objective is simply to replace the electricity consumed during that day’s driving. This is an important distinction. Instead of asking: “How quickly can we charge the entire battery?” ask: “How much energy do we need to put back into the vehicle before it leaves again?” That can significantly change the charging infrastructure required.

4. Do All Vehicles Need to Charge at the Same Time?

This is another major consideration. Imagine a business has ten electric vehicles. If all ten return at 5 pm and must leave fully prepared at 6 am, the charging requirement is different from a fleet where:

• three vehicles return at 3 pm
• another four return at 5 pm
• three remain onsite during the day
• some vehicles only travel short distances.

The second business may have much greater flexibility to stagger charging. This is where smart charging and load management can become valuable.

Rather than every vehicle automatically drawing maximum power as soon as it plugs in, a properly designed charging system may be able to distribute available power according to vehicle needs and charging schedules.

A useful starting point is to look at the energy your vehicles use each day. At a high level: Daily kilometres travelled × vehicle energy consumption = approximate daily energy to replace

For example, if a vehicle travels 100 kilometres per day, you would look at the manufacturer’s or real-world energy consumption data to estimate how many kilowatt-hours need to be returned to that vehicle.

Do this across the fleet and you begin to understand the site’s daily fleet charging requirement. The next question is: How many hours do you have available to deliver that energy?

A fleet requiring substantial energy over a twelve-hour overnight window will have a very different charging requirement from the same fleet needing that energy within two hours.

A detailed assessment should also allow for factors such as charging losses, operational contingencies, vehicle-specific charging limits and future fleet growth. This is why charger numbers alone do not tell you how much EV charging infrastructure a business needs.

There is no universal answer, a fleet of ten EVs does not automatically require ten chargers. Consider three businesses, each operating ten electric vehicles.

Business A: Trade Vehicles Returning Overnight

Ten trade vans leave each morning, return during the afternoon and remain at the depot overnight. If their daily driving requirements are moderate and the vehicles have a long overnight charging window, the business may have considerable flexibility in how charging is scheduled. Depending on actual energy requirements and operating procedures, charger sharing or managed charging may be possible.

Business B: High-Kilometre Service Fleet

Another business operates ten vehicles covering much greater distances every day. The vehicles return later and have fewer hours available before departing again. This business may require more charging capacity even though it has exactly the same number of EVs.

Business C: Multiple Shifts

A third business operates vehicles almost continuously. Some vehicles return to the depot only briefly before being sent back into service. The short dwell time may make faster charging or a different mix of charging infrastructure more appropriate.

The lesson is simple: Fleet size alone cannot determine charger numbers. Vehicle utilisation matters just as much.

Yes, several EVs can potentially share charging infrastructure where operating schedules allow it. For example, one vehicle may charge during the afternoon before another vehicle uses the same charging point overnight. Whether this is practical depends on:

• vehicle schedules
• staff availability
• parking arrangements
• charger access
• charging duration
• required energy
• fleet management procedures.

Physically moving vehicles between chargers may work for a small fleet but become inefficient for a larger depot. That is why charger sharing should be considered as an operational decision, not simply a way to reduce installation cost.

Sometimes installing additional charging ports but intelligently managing the available electrical capacity can provide a better long-term solution than relying heavily on vehicle swapping.

Yes. Overnight charging can be one of the most practical options for fleet vehicles that return to a workplace or depot at the end of each day.

A long overnight dwell time means businesses may be able to replenish vehicle energy while the vehicles are already out of service. This can suit businesses such as:

• electricians and trade contractors
• plumbing businesses
• maintenance companies
• service fleets
• delivery businesses
• councils
• facilities management companies
• commercial contractors
• businesses with company or pool vehicles.

But the fact that vehicles are parked overnight does not remove the need to check the electrical capacity of the property.

This is where fleet planning becomes a commercial electrical infrastructure project. Even if your fleet analysis suggests that you need eight charging points, the next question is whether your existing electrical system can support them.

A commercial EV charging assessment should consider:

• incoming electrical supply
• switchboard capacity
• historical peak loads
• existing site demand
• major electrical equipment
• available circuits
• charger locations
• cable routes
• proposed charging load
• load management
• future EV expansion.

If the site does not have enough available capacity, options may include load management or electrical infrastructure upgrades depending on the particular property and charging requirements.

Potentially. A common assumption is that if a business installs ten chargers, it needs enough electrical capacity for all ten chargers to run at their maximum output simultaneously. That may not always be necessary.

Smart charging can help control when and how vehicles charge, while load-management systems can help keep EV charging within the electrical capacity available to the site.

For example, charging demand may be distributed across an overnight period instead of every vehicle charging at full output immediately. The appropriate strategy depends on how much energy each vehicle requires and when it needs to leave again. This is especially important for businesses planning to increase the size of their electric fleet over time.

Design for the future, even if you do not install every charger today. For example, a company operating 20 vehicles may initially transition only four vehicles to electric. It may only need four charging points today, or potentially fewer depending on vehicle use.

But if the business expects 15 of those 20 vehicles to become electric over the next several years, the original electrical design should take that expansion into account.Planning ahead may include considering:

•  future switchboard requirements
• cable pathways
• additional circuits
• charger locations
• electrical capacity
• load management
• communications infrastructure
• additional parking bays.

The goal is not necessarily to install everything now. It is to avoid unnecessarily starting again later.

Not necessarily. A faster charger can deliver more energy in a shorter period, but charger speed is only one part of the equation. You also need to consider:

• whether the vehicle can accept that charging rate
• how often the charger needs to be shared
• whether employees need to move vehicles
• the site’s available electrical capacity
• charger and infrastructure costs
• how quickly vehicles actually need to return to service.

A business with vehicles parked for ten hours may not benefit from designing its entire fleet around very fast charging. Conversely, a fleet with extremely short turnaround times may place much greater value on charging speed.

The next step is therefore to compare AC and DC EV charging based on fleet operations rather than simply choosing the fastest equipment available.

There is no single EV charger-to-vehicle ratio that works for every business. For some fleets, the appropriate result may be close to one charging port per vehicle. For others, chargers may be shared between vehicles. The right ratio depends on the relationship between:

vehicles + kilometres travelled + energy required + dwell time + charger capacity + available site power

That is why the charger-to-vehicle ratio should be the result of the fleet charging assessment, not the starting assumption.

Before installing fleet EV chargers, businesses should assess both their vehicle requirements and day-to-day operations. This includes the number of current and future EVs, vehicle models and battery sizes, typical kilometres travelled, charging limits, departure and return times, overnight parking, shift patterns and required turnaround times. Understanding how and when vehicles are used helps determine how much charging capacity the fleet actually needs, rather than simply installing one charger for every vehicle.

The site itself is just as important. A commercial EV charging assessment should consider the existing electrical supply, switchboard capacity, peak electricity demand, available parking, charger locations, cable routes and space for future expansion. By combining fleet energy requirements with the site’s electrical capacity, businesses can design commercial EV charging infrastructure around real operating needs and create a more practical, scalable solution for future fleet growth.

If your business is planning to electrify company cars, vans, service vehicles or a larger commercial fleet, start with the infrastructure rather than the charger count. MPV Group can assess your:

• current and future fleet
• vehicle use
• charging windows
• proposed charger locations
• existing switchboard
• electrical capacity
• power requirements
• potential load management
• future expansion requirements.

From there, we can help determine a practical commercial EV charger installation designed around the way your business actually operates.

If your business is considering electric vehicles, now is a good time to assess both your charging infrastructure and whether you may be eligible for NSW EV fleet funding or charger incentives.

MPV Group can assess your fleet requirements, electrical capacity, switchboard, charger locations and future growth to help you plan a practical commercial EV charging solution.

Talk to MPV Group about commercial EV charger installation in Sydney and get your site ready for fleet electrification.

Call (02) 9817 0333 or request a free quote today.