Challenge
Milk the Sun operates one of Europe's leading online marketplaces for photovoltaic systems. The platform connects buyers and sellers, covering the entire lifecycle of a PV system — from initial information through trading to document management. With growing international business, the old platform reached its limits.
The task was clear: a complete relaunch of milkthesun.com with a fundamental visual overhaul and expanded infrastructure, information provision, and automated data exchange capabilities — all in 5 languages for European markets.
Our Services
We planned, conceptualised, and developed a comprehensive online portal on the Drupal CMS:
- Frontend & Content Management: Drupal-based with custom module development
- Backend API: Symfony PHP framework for all business processes
- Multilingual Architecture: Full support for 5 European languages
- User Management: Personalised cockpit areas for buyers and sellers
- Hosting Infrastructure: Separate test and staging instances for independent country-specific releases
- SEO & Content Marketing: Country-specific WordPress blogs in all 5 languages
Solution
The architecture combines Drupal for frontend and content management with a robust Symfony backend API. All business processes run through the self-developed API: system search with extensive filters, creation and management of new PV systems, sophisticated user management with personalised dashboards, and comprehensive document handling.
Custom Drupal modules were developed to map the complex marketplace requirements. An extensive information section about photovoltaics and an automated newsletter system complete the offering.
Result
A scalable, multilingual marketplace that has been successfully operational since 2015 and is continuously developed. The platform enables efficient cross-border trading of photovoltaic systems, contributing to the energy transition.
