W1G

Technical Task (TT)

Mobile Application and W1Charge Platform

1. Project Goal

Create a unified mobile application and backend platform that integrates charging stations from various electric vehicle operators, providing search, access, payment, charging management, and analytics.

Objective: to become a aggregator and standard for access to EV charging.

2. Target Audience

2.1 End Users (B2C)

• Electric vehicle drivers
• Corporate fleets

2.2 Business Users (B2B)

• Charging station operators
• Location owners (shopping malls, gas stations, hotels, homeowners' associations)

3. Platforms

• iOS (Swift / SwiftUI)
• Android (Kotlin)
• Backend (Cloud-based)
• Admin panel (Web)

4. Core Functionality (MVP)

4.1 Mobile Application (User)

4.1.1 Registration and Authorization

• Phone / Email
• OTP / Passwordless login
• User profile

4.1.2 Map of Charging Stations

• Interactive map (Google Maps / Mapbox)
• Filters:
  • Connector type (Type 2, CCS, CHAdeMO)
  • Power (AC / DC)
  • Price
  • Availability (online)
• Clustering of points

4.1.3 Charging Station Card

• Address
• Operator
• Connector types
• Power
• Price per kWh
• Status (available / occupied / offline)

4.1.4 Start Charging

• Select port
• Start / Stop charging session
• Real-time: kWh, time, cost

4.1.5 Payment

• Bank cards (Apple Pay / Google Pay)
• Balance / wallet
• Payment history

4.1.6 Charging History

• Date
• Location
• kWh
• Amount

5. Backend / Platform

5.1 Architecture

• Microservices
• REST / GraphQL API
• Cloud hosting (AWS / GCP / Azure)

5.2 OCPP Integration

• Support for OCPP 1.6J (mandatory)
• Support for OCPP 2.0.1 (optional)
•  
• Features:
  • Remote Start / Stop
  • Meter Values
  • Status Notification
  • Tariff management

5.3 Operator Management

• Operator profile
• Connecting stations
• Setting tariffs
• Roles and access

5.4 Billing

• Cost calculation per kWh / minutes
• Commission model
• Revenue sharing
• Invoicing

6. Admin Panel (Web)

6.1 For W1Charge

• User management
• Operator management
• Session monitoring
• Financial analytics

6.2 For Operator

• List of stations
• Port statuses
• Tariffs
• Revenue reports

7. Security

• JWT / OAuth2
• PCI DSS (for payments)
• Data encryption
• Role-based access

8. Analytics

• Number of sessions
• kWh
• ARPU
• Station load
• Heatmaps

9. Result

• Mobile App (iOS / Android)
• Backend API
• Admin Panel
• API Documentation