Fleet Electrification in India: How to Plan EV Charging for 10, 50 or 100 Vehicles

Electric vehicles are becoming an important option for businesses operating taxis, delivery vans, last-mile logistics vehicles, employee transport services, buses and other commercial fleets.

However, replacing petrol or diesel vehicles with electric vehicles involves more than purchasing a new fleet. Businesses must also decide where vehicles will charge, how much electricity they will require, how many chargers to install and how to ensure every vehicle is ready for its next trip.

These decisions become particularly important when moving from a small electric fleet to dozens or hundreds of vehicles.

The good news is that charging infrastructure can be planned in stages. By understanding vehicle movement, charging windows, electricity capacity and operational requirements, businesses can build a system that meets current demand while allowing for future growth.

This guide explains how to approach fleet charging for 10, 50 or 100 electric vehicles in India.

Why Fleet Electrification Requires a Charging Strategy

A private electric car may spend most of the night parked at home. Commercial vehicles often follow more demanding schedules.

A delivery van might travel several routes each day. A taxi could remain in service for extended hours. A bus may have a short window between shifts. A logistics fleet might return to a depot at different times depending on the route.

Each situation creates a different charging requirement.

Without a clear plan, businesses can face vehicle queues, missed departures, unexpectedly high electricity demand, inefficient charger usage and unnecessary infrastructure expenses.

A well-designed charging strategy connects three parts of the operation:

• Vehicles: Their daily distances, energy consumption and departure schedules.
• Infrastructure: Chargers, parking bays, electrical supply and associated equipment.
• Operations: Charging schedules, monitoring, maintenance, energy costs and fleet availability.

The purpose is to ensure vehicles are sufficiently charged when needed without investing more in infrastructure than the operation requires.

1. Start With Your Fleet's Actual Usage

Before deciding how many chargers to purchase, collect information about how the fleet operates.

For every vehicle category, estimate:

• The number and type of vehicles.
• Average daily distance travelled.
• Typical energy consumption per kilometre.
• Battery capacity and compatible charging options.
• Daily departure and return times.
• Time spent parked at the depot or destination.
• Whether vehicles return to one location or use multiple locations.
• Expected fleet growth over the next few years.

These details matter because a fleet of 50 vehicles operating predictable daytime routes may have a very different charging requirement from 50 vehicles operating multiple shifts throughout the day.

For example, vehicles that return to a depot overnight may be suitable for scheduled charging during longer parking periods. Vehicles that operate continuously may require faster charging or opportunities to charge between assignments.

The first question should not be, "How many chargers do we need?" It should be, "How much energy does the fleet need, and when must that energy be available?"

2. Calculate Daily Energy Demand

A simple calculation provides a useful starting point for estimating charging requirements.

Daily battery energy demand = Number of vehicles × Average daily kilometres per vehicle × Energy consumption per kilometre

The result estimates the energy needed by the vehicles. The electricity drawn from the grid will be higher because charging involves conversion and other losses.

Example: A fleet of 50 electric vans

Assume a business operates 50 electric vans. Each van travels an average of 100 kilometres per day and consumes 0.18 kWh per kilometre.

The estimated daily battery energy demand is:

50 × 100 km × 0.18 kWh/km = 900 kWh per day

For illustration, if charging efficiency is assumed to be 90%, the energy required from the electricity supply would be approximately:

900 ÷ 0.90 = 1,000 kWh per day

This is an example calculation, not a universal benchmark. Actual consumption will depend on the vehicle model, payload, driving conditions, route, weather and operating habits.

The estimate also does not tell you the required charger count by itself. To determine that, you must consider when vehicles return, how long they remain parked and how much charging power is available during those hours.

3. How Does Charging Planning Change for 10, 50 or 100 EVs?

Fleet size affects the complexity of the system, but it does not determine a fixed charger-to-vehicle ratio.

Fleet sizeMain planning priorityWhat to consider10 EVsEstablishing a workable charging routineVehicle schedules, overnight parking, available supply and provision for a backup charging option50 EVsCoordinating multiple vehicles and routesStaggered charging, peak electricity demand, charger availability and operational monitoring100 EVsManaging a larger, interconnected operationCentralised monitoring, dynamic load management, charging priorities, redundancy and phased expansion

A fleet with long overnight parking windows may operate effectively with a different configuration from one with short turnaround times.

Likewise, two fleets of equal size may need different equipment because of differences in vehicle battery capacity, daily energy demand and the amount of time available for charging.

The correct configuration should be calculated from the fleet's actual operating requirements.

4. AC Charging vs DC Fast Charging for Fleets

Choosing between AC and DC charging is one of the most important infrastructure decisions.

AC charging for longer parking periods

AC chargers can be suitable for fleets whose vehicles remain parked for extended periods and can complete charging before the next departure.

Potential applications include:

• Employee transport vehicles parked overnight.
• Delivery vehicles with predictable return schedules.
• Company cars and light-duty vehicles used during business hours.
• Vehicles that can be charged between planned shifts.

AC charging may be a cost-effective choice for suitable use cases, but the actual charging speed also depends on the vehicle's onboard charger and electrical supply.

DC fast charging for shorter turnaround times

DC fast charging can be useful when vehicles need to regain energy within a limited parking window.

Potential applications include:

• Vehicles operating multiple shifts.
• Taxis with short breaks between trips.
• Commercial vehicles that return briefly to a depot.
• Operations where extended charging downtime would disrupt assignments.

DC fast charging generally requires more careful planning around electrical capacity, equipment costs and peak demand.

Consider a combination

Some fleets may benefit from a combination of AC and DC charging. For instance, vehicles returning overnight could use slower scheduled charging, while vehicles following demanding routes could have access to faster charging when required.

The ideal balance should be based on charging demand, available power, vehicle compatibility and the cost of meeting operating schedules.

5. Plan Depot Electricity Capacity Before Installing Chargers

The electrical supply must support the charging operation safely and reliably.

Adding chargers without assessing the total demand can create power constraints and may require expensive electrical upgrades.

Before installation, evaluate:

• Existing electrical load and available sanctioned capacity.
• Expected simultaneous charging demand.
• Transformer and distribution requirements.
• Cable sizing, protection equipment and electrical safety.
• Requirements for a new or upgraded electricity connection.
• Parking layout and space for future expansion.
• Applicable DISCOM requirements and connection timelines.

Consider a depot where several vehicles return at approximately the same time. If all chargers begin operating at full power simultaneously, the peak demand could be significantly higher than if charging were staggered.

How smart load management helps

Dynamic load management can allocate available electrical capacity between chargers based on configured limits, vehicle priorities and charging requirements.

For example, the system might give priority to vehicles leaving early, while vehicles scheduled to depart later receive energy over a longer charging window.

This can help reduce unnecessary simultaneous demand and make better use of available supply. However, it does not eliminate the need to confirm that the underlying electrical installation is adequate.

Load management should form part of the electrical design, not be treated as a substitute for one.

6. Schedule Charging Around Vehicle Operations

Charging schedules should support the fleet's daily work rather than operate independently of it.

A useful schedule begins with the expected departure time, the energy required for the next route and the time available before departure.

The fleet manager can then identify which vehicles need charging first and which can wait.

For example, a delivery operation could assign priority to vans serving early-morning routes. Vehicles returning later or leaving later could use the remaining charging windows.

The same approach applies to taxis, buses and other commercial vehicles, although their schedules and charging requirements will vary.

A good charging plan should account for:

• Expected energy requirements before each departure.
• Vehicle arrival and departure times.
• Charger compatibility and power limits.
• Charger availability and overlapping charging sessions.
• Unexpected trips and operational delays.
• A reasonable buffer for faults or schedule changes.

Planning for occasional exceptions is important. A system that works only when every vehicle arrives on time may not be robust enough for a real commercial operation.

7. Use Charging Software to Monitor the Fleet

As the number of vehicles and chargers grows, manual coordination becomes more difficult.

A connected charging management system can provide a central view of charger status, charging sessions and energy consumption. Depending on the system and its integrations, it may also support remote monitoring, usage reports, access control, charging schedules and load management.

For fleet operators, useful capabilities include:

Charging status: See which vehicles or charging points are charging, idle or reporting faults.

Energy reporting: Understand how much energy is being used and how that usage varies across vehicles, chargers and time periods.

Operational visibility: Identify charging problems before they disrupt departures, with a clear process for escalating and resolving faults.

Load management: Coordinate charging within the limits of the site's available electrical capacity.

Performance reporting: Compare energy usage, charging availability and operating costs over time.

Before selecting a system, verify its compatibility with the proposed chargers and the exact features available. If integration with fleet-management or vehicle-telematics software is important, confirm that the required integration is supported rather than assuming it will be available.

A reliable monitoring process helps the fleet manager make decisions based on operational information instead of manually checking every charger.

8. Calculate the Cost of Fleet Electrification

The financial evaluation should include both vehicle costs and the infrastructure needed to operate those vehicles.

Relevant expenses include:

• Vehicle purchase or financing.
• Chargers and electrical installation.
• Grid connection and any infrastructure upgrades.
• Electricity and applicable demand-related charges.
• Charging management software.
• Maintenance, repairs and downtime.
• Insurance, tyres and other vehicle operating expenses.
• Depot space and any changes required to parking arrangements.

Businesses should compare the total cost of operating an electric fleet with the cost of operating a comparable conventional fleet over a suitable period.

One useful measure is cost per kilometre.

Cost per kilometre = Total relevant fleet operating costs ÷ Total kilometres travelled

The calculation should use a consistent period and comparable cost categories. Include the infrastructure costs that the fleet actually incurs, and account for financing and vehicle replacement assumptions where relevant.

It is also important to consider operational performance. An EV with low energy costs may not deliver the expected savings if unsuitable charging arrangements cause missed trips or excessive downtime.

Build conservative, expected and high-usage scenarios instead of relying on a single optimistic projection.

9. Government Guidelines and Charging Infrastructure

India's Ministry of Power issued the Guidelines for Installation and Operation of Electric Vehicle Charging Infrastructure-2024, which apply to several charging environments, including private and semi-restricted facilities, public locations, highways and e-bus depots.

Fleet operators should review the applicable technical and safety requirements, electricity connection conditions and relevant local rules before installation.

The PM E-DRIVE scheme also provides for public charging infrastructure support under defined conditions. However, fleet owners should verify the scheme's eligibility provisions rather than assume that purchasing electric vehicles or installing private depot chargers automatically qualifies them for a grant.

Useful official references:

• Ministry of Power: EV Charging Infrastructure Guidelines, 2024 (PDF)
• Ministry of Heavy Industries: PM E-DRIVE Public Charging Station Operational Guidelines (PDF)
• NITI Aayog: Electric Vehicle Charging Infrastructure and Its Grid Integration in India (PDF)

10. A Step-by-Step Fleet Electrification Roadmap

A staged rollout helps businesses validate assumptions before making a larger investment.

Step 1: Audit current fleet operations

Record daily distances, operating hours, routes, parking locations and vehicle replacement plans.

Step 2: Estimate energy requirements

Use representative vehicle consumption figures and actual driving patterns to estimate energy demand. Account for charging losses and variations in daily usage.

Step 3: Assess the depot

Review parking, electrical supply, grid connection options, site layout and future expansion requirements.

Step 4: Compare charging configurations

Evaluate AC charging, DC fast charging or a combination according to the time available for charging and the vehicle types involved.

Step 5: Test the operational plan

Begin with a representative group of vehicles where practical. Measure charging behaviour, actual energy consumption, charging downtime and the effect on daily schedules.

Step 6: Introduce monitoring and reporting

Set up a reliable process for tracking charger status, sessions, energy consumption, faults and operating costs.

Step 7: Expand using measured results

Add vehicles and charging capacity in stages, using actual utilisation and performance data to guide investment.

This approach reduces reliance on assumptions and gives the business a clearer basis for scaling its electrification programme.

Frequently Asked Questions

How many chargers are required for a fleet of 50 EVs?

There is no universal answer. The appropriate number depends on daily energy needs, vehicle departure schedules, battery capacity, available charging windows and electrical supply. A detailed fleet and site assessment should determine the configuration.

Should electric fleet vehicles be charged overnight?

Overnight charging can suit fleets with predictable return times and sufficiently long parking windows. Fleets operating several shifts or running vehicles for extended hours may need additional charging opportunities during the day.

Is AC charging cheaper than DC fast charging?

AC charging equipment and installation may cost less in suitable applications, but total project costs depend on the site, equipment, connection requirements and operational needs. Compare the cost of each complete charging solution rather than looking at charger prices alone.

Can a fleet use public charging stations instead of installing depot chargers?

Yes, where public charging facilities are accessible, compatible and available when the fleet needs them. The business should account for travel to chargers, waiting time, pricing, reliability and the impact on vehicle utilisation before deciding whether public charging can replace or supplement depot charging.

How can a fleet manager reduce charging costs?

Start by understanding actual energy consumption, electricity tariffs and vehicle schedules. Schedule charging intelligently, use available electrical capacity efficiently, monitor operating costs and address recurring faults that cause wasted time or energy.

Conclusion

Fleet electrification works best when vehicles, charging infrastructure and daily operations are planned together.

Whether a business is starting with 10 EVs or preparing for a fleet of 100, the fundamentals remain the same: understand energy demand, match chargers to the operating schedule, assess electrical capacity, manage charging intelligently and measure results.

A well-planned charging system can help businesses make more informed infrastructure investments while keeping vehicles ready for work.

Planning to electrify your commercial fleet? Explore Savekar's EV charging solutions to learn more about connected charging management and infrastructure planning for commercial operations.