OCPP Simulator (Node.js)

A simple OCPP 1.6 charge point simulator built with TypeScript and WebSocket.

Requirements

• Node.js >= 18
• pnpm (recommended) or npm

Install

pnpm install

Build

pnpm run build

Build output is generated at ./_dist/simulator.mjs.

Run

Local script

node ./_dist/simulator.mjs wss://host:port

Binary (after install)

If this package is installed globally or linked, use:

ocpp-sim wss://host:port

Usage

Usage: ocpp-sim [options] <wss://host:port>
Options:
  -h, --help                 Show this help message
  -c, --connectors <number>  Set total connectors (default: 1)
  -t, --temperature          Include Temperature in MeterValues
      --soc                  Include SoC in MeterValues
  -s, --serial <value>        Set charge point serial number (default: SIMULATED-MACHINE-01)

Notes

• The simulator uses ESM ("type": "module").
• The WebSocket URL path is forced to the serial number.