// Case studies · Shared solar energy
Clube do KW
Photovoltaic Energy Management System
Comprehensive management system for photovoltaic energy companies with customer control, distributor management, financial analysis, and real-time solar installation monitoring.
- Client
- Clube do Kilowatt
- Period
- 2025–2026
- Status
- In production
- Stack
- DjangoVue 3PostgreSQLWebSocket

// The challenge
The consortium ran on five spreadsheets and manual reading of invoices from three utilities (CELESC, COPEL and RGE). Every month, hundreds of PDFs were downloaded and typed by hand, and discount, commission and allocation rules lived in spreadsheet columns with no history or cross-check.
// What we delivered
Custom web system that downloads invoices from the utilities' portals, extracts the data with AI, applies billing rules with immutable versioning (every closing is stored exactly as it was calculated), issues charges via boleto and automatic PIX, and gives managers, operators and consumers real-time dashboards.
Description
Clube do KW is a comprehensive management system for photovoltaic energy companies, offering customer control, distributor management, financial analysis, team management, and solar installation monitoring with real-time dashboards. The platform provides complete tools for managing solar energy businesses from customer registration to ROI analysis.
Key Features
- Consumer Management: Complete registration and tracking of photovoltaic customers with detailed installation data.
- Distributor Control: Management of partnerships with energy distributors and credit compensation tracking.
- Analytics Dashboard: Real-time metrics of energy production, consumption, and system efficiency.
- Financial System: Invoice control, generated savings tracking, and complete ROI analysis.
- Team Management: Role and permission control for installers, technicians, and administrators.
Technologies Used
- Backend: Django 5.0, Django REST Framework, PostgreSQL, Redis, Celery, Django Channels
- Frontend: Vue 3, Composition API, TypeScript, Vuetify 3, Pinia for state management
- Infrastructure: Docker, Docker Compose, GitHub Actions CI/CD, Nginx, Gunicorn, Daphne
- Real-time: WebSocket via Django Channels for live dashboard updates
System Highlights
- ROI Analysis: Automatic calculation of return on investment and payback period for solar installations.
- Savings Tracking: Monthly monitoring of electricity bill savings and energy credit management.
- JWT Authentication: Secure token-based authentication with automatic refresh and rate limiting.
- Performance Optimized: Redis caching, lazy loading, and optimized queries for fast response times.
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