Workplace EV Charging in India: How to Set Up EV Chargers at Your Office

An office car stays parked for something unusual in EV charging:

hours.

That makes workplaces one of the best environments for AC charging.

Unlike a highway station, where a driver wants substantial energy in 20–40 minutes, an employee's car may remain parked from 9AM to 6PM.

That changes what the charging infrastructure should look like.

Why Offices Usually Don't Need DC Fast Charging

Consider a vehicle parked for eight hours.

Even a 7kW AC charger theoretically has enough time to deliver a substantial amount of energy during that parking window.

The objective at a workplace therefore isn't necessarily:

charge one car as fast as possible.

It is often:

give many cars enough energy before employees leave.

Those are very different engineering problems.

7kW, 11kW or 22kW for an Office?

7kW

Useful for dedicated employee bays and vehicles that remain parked for most of the working day.

11kW

Useful when three-phase infrastructure is available and the visiting EVs can take advantage of higher AC charging power.

22kW

Provides additional capability for compatible vehicles and can make sense where parking duration is shorter or the infrastructure is intended to support a wider range of future vehicles.

But remember: a 22kW charger does not force 22kW into the car.

The EV takes only the AC power it can accept. ZEVpoint's existing 7/11/22kW guide explains this limitation.

The Bigger Question: How Many Chargers?

This is where workplace planning gets interesting.

Suppose you have 20 EV-driving employees.

Installing one extremely fast charger means employees have to move cars throughout the day.

Installing multiple AC charge points can be far more convenient.

Instead of thinking only about charger kW, calculate:

number of EVs × average energy required ÷ parking hours.

That gives a much better picture of the site's charging requirement.

Do All Employees Need Full Charging Every Day?

Usually not.

Someone driving 30km to the office does not need to replenish a 70kWh battery every day.

They only need to replace the energy used.

This makes shared workplace charging much more practical than calculations based on every car arriving at 0%.

How Do You Stop Chargers From Overloading the Building?

Load management.

A workplace may have enough electrical capacity for EV charging during quieter periods but not enough to let every charger operate at full power while HVAC, lifts, kitchens and other building loads are peaking.

Dynamic load management can allocate available power across chargers.

For example:

Building spare capacity: 60kW

Installed EV charging capacity: 110kW

The management system doesn't necessarily need to allow all chargers to draw maximum power simultaneously.

It can keep the total EV load within 60kW and distribute available power according to charging demand.

That can postpone or avoid expensive electrical upgrades.

Should Employees Pay for Charging?

There are three common approaches.

Free employee benefit

The company absorbs the electricity cost.

Simple, but usage still needs to be monitored as EV adoption grows.

Paid per kWh

Each employee is billed for actual energy consumed.

This requires user identification and metering.

Monthly allowance or subscription

Employees receive a fixed charging entitlement or pay a monthly fee.

This can simplify recurring workplace use.

The right model depends on company policy rather than charger hardware alone.

Why OCPP Matters for Larger Office Installations

A small office with one private charger may not need a full charging-management platform.

A corporate campus with 20, 50 or 100 chargers is different.

OCPP allows chargers to communicate with a central management system for:

• user authentication;
• charging records;
• remote monitoring;
• pricing;
• fault alerts;
• session management;
• smart charging.

ZEVpoint has a detailed guide explaining OCPP and charger-management systems.

RFID, App or Open Charging?

For private workplaces, RFID can be particularly practical.

Each employee receives a card associated with their account.

They tap, charge and the system records the session.

An app can provide more user information, while completely open charging offers the lowest friction but less accountability.

What About Visitors?

Keep employee and visitor charging policies separate.

Visitor bays can be:

• complimentary;
• reception-authorised;
• QR-paid;
• RFID controlled.

For larger campuses, separating these user groups in the CMS makes reporting and billing much easier.

Start Small, Design for Expansion

One of the biggest workplace-charging mistakes is designing only for today's EV population.

If five employees drive EVs today, there may be twenty in a few years.

That doesn't mean installing twenty chargers immediately.

It means designing the electrical backbone—DB capacity, conduits, cable routes, networking and parking layout—so expansion doesn't require starting again.

Planning charging for an office, IT park or corporate campus? ZEVpoint can design the hardware, electrical distribution and charger management around your employee count and available load.

Frequently asked questions

Why is AC charging usually better than DC fast charging for offices?

Office cars are typically parked for many hours, such as from 9 AM to 6 PM. AC charging, even at lower power, has ample time to deliver sufficient energy during this long parking window, making it more suitable than DC fast charging which focuses on speed.

What power rating (kW) AC charger is best for an office workplace?

7kW chargers are good for dedicated employee bays and long parking. 11kW is useful with three-phase power for EVs that can use higher AC power. 22kW offers more capability for compatible vehicles or shorter parking durations, and for future-proofing, but an EV only draws the power it can accept.

How do offices manage the electrical load when many EVs are charging simultaneously?

Offices use dynamic load management systems. These systems allocate available power across chargers, ensuring the total EV load stays within the building's spare electrical capacity, preventing overloads and potentially avoiding expensive electrical upgrades.

What are the common payment models for employee EV charging at the office?

Common approaches include offering charging as a free employee benefit, billing employees per kWh for actual energy consumed, or providing a monthly allowance or subscription for charging entitlement. The choice depends on the company's policy.

Why is OCPP important for larger office EV charging installations?

For larger installations with many chargers, OCPP (Open Charge Point Protocol) allows chargers to communicate with a central management system. This enables features like user authentication, charging records, remote monitoring, pricing, and smart charging, which are crucial for efficient operation.

How can offices manage charging for both employees and visitors?

It's best to keep employee and visitor charging policies separate. Visitor bays can be complimentary, reception-authorised, QR-paid, or RFID-controlled, and separating these user groups in the Charge Management System (CMS) simplifies reporting and billing.

How should offices plan for future growth in EV adoption when setting up charging infrastructure?

Offices should design the electrical backbone—including DB capacity, conduits, cable routes, networking, and parking layout—to allow for easy expansion. This means planning for a future increase in EV-driving employees without needing to completely re-do the initial setup.