OCPP 2.0.1: Why It Matters for Indian CPOs in 2026

As India’s public charging network becomes more software-driven, Charge Point Operators need to evaluate much more than charger power, connector type and installation cost. OCPP 2.0.1 matters because the communication layer between charging stations and the Charging Station Management System directly affects remote operations, transaction handling, security, device management and smart-charging capabilities.

For an Indian CPO operating dozens or thousands of chargers, backend interoperability can influence procurement flexibility, network uptime and the ability to manage mixed hardware fleets. The protocol is therefore not simply an IT specification. It is part of the operating architecture of a charging network.

The Open Charge Alliance released version 2.0.1 in 2020. OCA currently supports versions 1.6, 2.0.1 and 2.1. Version 2.1 was released in January 2025 and is the newer version, so operators should not describe 2.0.1 as the latest release. OCA continues to support the older versions.

Indian CPOs comparing versions should review the official supported OCPP versions and compatibility guidance from the Open Charge Alliance.

Quick Answer: Why Should Indian CPOs Care?

For Indian CPOs, OCPP 2.0.1 can provide a more capable foundation than older implementations when the charger and CSMS actually support the required functional profiles.

Key benefits include:

• Richer device management

• Improved transaction handling

• Stronger security capabilities

• Advanced smart-charging functionality

• Support for ISO 15118-related functions

• Better monitoring and diagnostics

• More structured charger configuration

However, “OCPP compatible” is not enough.

A procurement team should verify:

• Exact protocol version

• Implemented functional blocks

• Certification status

• Security profile

• Backend compatibility

• Smart-charging functionality

• Real-world interoperability testing

The important question is not merely whether a charger claims OCPP support, but what has actually been implemented and tested.

What Is OCPP?

Open Charge Point Protocol is an open application protocol used for communication between a charging station and a central management system.

A simplified network architecture looks like:

EV Charger ↔ OCPP ↔ CSMS / Backend

The backend can then support functions such as:

• Charger status

• User authentication

• Remote start and stop

• Charging-session records

• Transaction information

• Fault monitoring

• Configuration

• Firmware operations

• Smart charging

• Reporting and analytics

The Open Charge Alliance’s official OCPP protocol overview explains the supported versions and major protocol capabilities.

This is different from OCPI.

OCPP primarily connects:

Charger ↔ Charging Management Backend

OCPI primarily addresses communication between:

Charging Networks ↔ Mobility/roaming platforms

For a detailed comparison, review SpeedCharge’s OCPP vs OCPI: EV Charging Protocols Explained for India.

What Changed From OCPP 1.6?

The move from 1.6 to OCPP 2.0.1 is not a simple incremental upgrade.

Open Charge Alliance states that the two versions are not backward compatible. The newer architecture introduced significant changes including an improved transaction model, device management, enhanced security, additional smart-charging functionality and ISO 15118 support.

For CPOs, the practical differences include:

A CPO should therefore not assume that an existing 1.6 backend can simply communicate with a newer charger without software integration and testing.

The Device Model Is a Major Operational Improvement

One of the biggest architectural changes is the device model.

A modern charging station can contain:

• Multiple EVSEs

• Connectors

• Electricity meters

• Power modules

• Communication modules

• Temperature sensors

• Displays

• Controllers

• Firmware components

The device model gives a CSMS a more structured way to represent charger components and their variables.

For operators, this can support more granular:

• Configuration

• Monitoring

• Diagnostics

• Inventory visibility

• Remote maintenance

This matters particularly at scale.

A CPO with hundreds of charging stations needs to know more than whether a charger is simply “online” or “offline.”

The backend should ideally help identify:

• Which component is reporting a fault

• Which parameter changed

• Whether a connector is unavailable

• Whether remote intervention is possible

• Whether field service is required

Better Transaction Handling Matters for Public Networks

Public charging transactions are not always as simple as:

Plug in → Start → Stop

A session may involve:

• Local authorization

• Remote authorization

• Changing connector states

• Temporary connectivity loss

• Meter-value updates

• Payment interaction

• Different transaction start triggers

• Different transaction stop triggers

OCPP 2.0.1 introduced redesigned transaction handling intended to manage these scenarios more flexibly.

For a CPO, better transaction records can support:

• Billing reconciliation

• Customer complaints

• Revenue reconciliation

• Charger utilisation reporting

• Session investigation

• Fleet billing

• Operational analytics

But the charger and CSMS still need to interpret and implement the protocol consistently.

Security Is a Procurement Requirement, Not a Checkbox

Connected EV chargers are networked infrastructure.

They can:

• Receive remote commands

• Communicate transaction information

• Handle authentication

• Receive firmware

• Exchange operational telemetry

• Connect to payment or customer systems

That means cybersecurity cannot be treated as an optional software feature.

CPOs should evaluate:

• TLS configuration

• Certificate management

• Client authentication

• Secure firmware updates

• Access controls

• Credential rotation

• Logging

• Vulnerability management

• Network segmentation

• Incident response

OCA’s certification framework also includes security-related functionality and an Advanced Security profile.

Indian operators should additionally review official CERT-In cybersecurity directions covering information-security practices and cyber-incident prevention, response and reporting.

For charging-specific implementation considerations, review SpeedCharge’s EV Charging Station Security: Cybersecurity Guide for India.

Smart Charging Can Help Control Site Demand

As charging hubs scale, multiple chargers may compete for limited electrical capacity.

Smart charging can potentially allocate power according to:

• Site limits

• Charger limits

• Vehicle requirements

• Priority rules

• Electricity tariff periods

• Fleet schedules

• Departure requirements

Suppose a charging hub has several high-power chargers.

That does not necessarily mean every charger must continuously operate at maximum rated output.

An appropriately designed charging-management system may distribute available site power dynamically between sessions.

OCA’s certification programme includes a Smart Charging profile for the 2.0.1 protocol family.

Operators should verify the exact smart-charging functionality implemented by both charger and CSMS rather than relying on a generic “smart charging supported” claim.

For grid and load-management planning, review SpeedCharge’s Smart EV Charging in India: Grid & Load Management Guide.

ISO 15118 Support and Plug & Charge

Another important capability is interaction with ISO 15118.

OCA identifies ISO 15118 support among the added capabilities available in the 2.0.1 ecosystem. Its certification programme also includes an ISO 15118 Support profile.

This is relevant to capabilities such as Plug & Charge.

With a properly implemented ecosystem, compatible systems can support automated authorization between:

• Vehicle

• EV charger

• Backend

• Certificate infrastructure

However, CPOs should avoid assuming that OCPP support alone makes Plug & Charge operational.

A complete deployment requires compatible:

• Vehicle hardware

• EVSE

• CSMS

• Certificate infrastructure

• Software

• Commercial workflow

Protocol support is only one layer.

Certification Matters More Than a Marketing Claim

A charger supplier may write:

“OCPP supported”

on a brochure.

That statement is not enough for enterprise procurement.

Open Charge Alliance operates an independent OCPP 2.0.1 certification programme. OCA states that the Core profile is mandatory, while additional functionality can be certified through other profiles.

Before purchasing equipment, ask:

1. Is this exact charger model certified?

2. Which protocol version was certified?

3. Which profiles were tested?

4. Is the CSMS certified or independently validated?

5. Has this charger-and-backend combination been tested?

6. Are the required functions part of the certified profile?

7. Is the certification applicable to the firmware version being supplied?

OCPP 2.0.1 certification can reduce implementation uncertainty, but certification does not mean every optional capability is included.

OCPP Compliance Does Not Automatically Guarantee Interoperability

Two products can claim support for the same protocol and still require integration work.

Differences may result from:

• Optional feature implementation

• Configuration choices

• Security settings

• Certificate handling

• Vendor extensions

• Firmware behaviour

• Backend assumptions

Therefore, interoperability testing should be part of procurement.

A practical test plan should include:

• Charger boot and registration

• Authorization

• Session start

• Session stop

• Meter values

• Remote start

• Remote stop

• Fault reporting

• Connectivity loss

• Connectivity recovery

• Firmware update

• Configuration changes

• Smart-charging commands

• Security workflows

This becomes especially important when a CPO wants to run chargers from multiple manufacturers through one CSMS.

Why OCPP Matters for Vendor Independence

Without an open communication layer, a charging operator can become dependent on one charger manufacturer or backend provider.

A standardised protocol can make it easier to design an architecture where:

• Hardware comes from multiple manufacturers

• CSMS software can evolve independently

• New chargers can be tested before rollout

• Network expansion is not tied completely to one closed ecosystem

However, open-protocol support does not automatically eliminate vendor lock-in.

Lock-in can still occur through:

• Proprietary extensions

• Closed APIs

• Non-exportable operational data

• Proprietary payment workflows

• Vendor-specific firmware tools

• Custom backend functionality

The objective should therefore be:

tested interoperability + data portability + documented integrations

—not merely a protocol logo.

For broader software architecture context, review SpeedCharge’s How EV Software in India Is Making Electric Mobility Easier.

What Indian CPOs Should Ask Charger Vendors

Protocol

Ask:

• Which OCPP version is implemented?

• Is the implementation officially certified?

• Which certification profiles are included?

• Which transport and communication architecture is used?

• Which CSMS platforms have been tested?

Security

Ask:

• Which TLS configuration is supported?

• How are certificates installed?

• How are certificates renewed?

• How are credentials protected?

• Are firmware updates cryptographically secured?

• Which security logs are available?

Device Management

Ask:

• Which charger components are exposed?

• Which variables can be monitored?

• Can configuration be changed remotely?

• Can faults be diagnosed remotely?

• Can component health be monitored?

Transactions

Ask:

• How are interrupted sessions handled?

• What happens during connectivity loss?

• Are meter values buffered?

• How are offline transactions synchronized?

Smart Charging

Ask:

• Which charging profiles are supported?

• Can the CSMS enforce a site power ceiling?

• Can multiple chargers share available capacity?

• Can charging priorities be configured?

• Has the function been tested under real load?

Charger Software Should Be Evaluated Before Hardware Procurement

Many infrastructure buyers still follow this process:

Choose charger → buy hardware → select backend later

That can create integration problems.

A better procurement process is:

Define operating architecture → define CSMS requirements → define protocol requirements → test compatible hardware → procure

The software layer should be evaluated for:

• Charger management

• Customer authentication

• Remote diagnostics

• Payment integration

• Tariff management

• Energy reporting

• Site management

• Fleet management

• Data export

• APIs

• User roles

• Security

This is particularly important for CPOs building multi-city networks.

CPO Migration Strategy: Do Not Replace Everything at Once

A large CPO may already operate a significant OCPP 1.6 installed base.

Migration should therefore be planned rather than treated as an overnight replacement.

Phase 1 — Inventory Existing Assets

Document:

• Charger model

• Charger manufacturer

• Firmware

• Current protocol version

• Backend

• Security configuration

• Remaining asset life

Phase 2 — Define Required Functions

Separate:

Must-have capabilities

from:

Future capabilities

This prevents unnecessary migration expenditure.

Phase 3 — Pilot

Test a limited number of:

• Chargers

• Firmware versions

• Backend integrations

• Security configurations

Phase 4 — Validate

Measure:

• Successful sessions

• Remote-command success

• Fault reporting

• Recovery after network loss

• Smart-charging behaviour

• Backend stability

Phase 5 — Scale

Expand only after the target charger/backend combination passes acceptance testing.

OCPP 2.1 Is Newer—So Why Discuss 2.0.1?

Open Charge Alliance released OCPP 2.1 in January 2025.

The newer version builds on the 2.0.1 application logic and adds capabilities such as:

• ISO 15118-20 support

• Bidirectional charging

• Vehicle-to-Everything functionality

• Distributed Energy Resource control

• Battery-swapping support

• Additional authorization options

The official OCPP 2.1 release explains these additions and confirms that older supported protocol versions continue to be supported.

For a CPO, the correct procurement question is therefore not:

“Is version 2.0.1 the latest?”

It is not.

The better question is:

“Which version and certified feature set best matches our hardware lifecycle, backend roadmap and interoperability requirements?”

For many operators, OCPP 2.0.1 can therefore remain a valid procurement baseline when its certified capabilities match the network roadmap.

Indian Standards and Electrical Safety Still Apply

OCPP is a communication protocol.

It does not replace:

• EVSE product standards

• Electrical protection requirements

• Installation standards

• Earthing requirements

• Electrical testing

• DISCOM requirements

• Equipment safety compliance

The Bureau of Indian Standards maintains an official EV charging standards overview for EV charging infrastructure. BIS also updated IS 17017 (Part 23):2026 for DC EV supply equipment, including requirements designed for Indian operating conditions.

CPOs should separately review Central Electricity Authority electrical safety regulations, including the 2026 amendment listed by CEA.

Protocol compliance and electrical compliance solve different problems.

A commercial charging system needs both:

reliable digital communication + compliant electrical infrastructure

CPO Procurement Decision Matrix

OCPP Procurement Checklist

Before signing a charger procurement contract:

Hardware

• Exact charger model identified

• Firmware version documented

• Connector configuration confirmed

• Electrical standards verified

Protocol

• Version documented

• Certification checked

• Certification profiles checked

• Optional functionality documented

CSMS

• Backend compatibility tested

• Charger onboarding tested

• Transaction workflows tested

• Remote control tested

• Fault reporting tested

Security

• TLS configuration reviewed

• Certificate process documented

• Firmware update mechanism reviewed

• Security logs available

• Incident workflow defined

Smart Charging

• Site power control tested

• Charger-level limits tested

• Priority logic tested

• Recovery behaviour tested

Operations

• Remote diagnostics available

• SLA documented

• Vendor support defined

• Firmware support period confirmed

• Data export process documented

Common Mistakes Indian CPOs Should Avoid

Avoid:

• Treating “OCPP compatible” as sufficient evidence

• Assuming 1.6 and 2.0.1 are backward compatible

• Assuming every optional function is certified

• Purchasing hardware before backend testing

• Ignoring certificate lifecycle management

• Ignoring firmware-update security

• Depending heavily on proprietary extensions

• Failing to test connectivity-loss recovery

• Ignoring backend data portability

• Treating OCPP as a substitute for BIS compliance

• Treating OCPP as a substitute for CEA requirements

• Assuming the newest protocol version is automatically the best option for every deployment

How SpeedCharge Approaches Connected Charging Infrastructure

Modern charging infrastructure combines:

• EVSE hardware

• Communication protocols

• Charging-management software

• Electrical infrastructure

• Payment systems

• Monitoring

• Maintenance

• Operational processes

SpeedCharge’s connected ecosystem is designed around charging infrastructure, smart software and CSMS-based network management.

Businesses, fleet operators, property owners and infrastructure partners evaluating connected charging deployments can Partner With SpeedCharge to discuss network-management and infrastructure requirements.

Final Thoughts

For Indian operators, OCPP 2.0.1 is important because it moves charger/backend communication toward richer device management, improved transaction handling, stronger security and more advanced smart-charging capabilities.

But protocol version alone does not create a reliable charging network.

Indian CPOs should evaluate:

certification + implemented profiles + cybersecurity + CSMS compatibility + interoperability testing + lifecycle support

before committing to large-scale hardware procurement.

The strongest infrastructure decision is not the charger with the longest feature list.

It is the hardware-and-software combination that can be:

• Tested

• Monitored

• Secured

• Updated

• Integrated

• Operated reliably

throughout the asset lifecycle.