Powerfill is built by the team behind SteVe, the world's most popular open-source OCPP server. We're committed to open standards, community-driven development, and giving you full control of your charging infrastructure. Our Origin Story From University Research to Global Standard In 2013, at RWTH Aachen University in Germany, a research project called SteVe was born. The name—short for Steckdosenverwaltung (German for "socket administration")—was humble, but the vision was not. What started as academic research into EV charging infrastructure quickly grew into something much larger. As electric vehicles went from novelty to necessity, operators around the world discovered SteVe. They needed an OCPP server that was: Open — No vendor lock-in, no proprietary protocols Reliable — Production-ready for real charging networks Free — Accessible to researchers, startups, and enterprises alike SteVe delivered on all three. Over the next decade, it became the go-to choice for EV charging operators worldwide. After over a decade of maintaining SteVe, we saw a clear pattern: operators loved the openness and reliability, but many needed more. They needed: Managed hosting — Not everyone wants to run their own servers Enterprise features — Multi-tenant support, advanced analytics, granular permissions Professional support — SLAs, dedicated assistance, guaranteed uptime Modern UX — A beautiful interface that teams actually enjoy using We could have built these features into SteVe and charged for them. Instead, we created Powerfill—a separate platform that offers enterprise capabilities while keeping SteVe free and open forever.

Powerfill

Manage home charger for free, grow from 1 to 10,000 Chargers

Manage home charger for free, grow from 1 to 10,000 Chargers