Sevket Gökay: SteVe maintainer, CTO of Powerfill (energy / EV charging)
Skoor 40 · n = 3 signals · confidence 0.7 [source]
What they built
Gökay is based in Hamburg, Germany, and his bio reads "SteVe maintainer, CTO @ Powerfill" [source]. SteVe is an open-source OCPP server for managing EV charging stations, written in Java and licensed under GPL [source]. It started at RWTH Aachen University in 2013 [source]. Whether Gökay created SteVe is not in the evidence.
Powerfill is a SaaS company that adds enterprise features on top of SteVe [source]. Powerfill's backend holds Open Charge Alliance certification for OCPP 1.6 Core + Smart Charging + Advanced Security [source]. The certificate covers only the Powerfill backend, not standalone SteVe [source].
Record
Measured signals (n = 3):
Repo context: SteVe has 1,138 stars and 496 forks, and it was last pushed 2026-10-11 [source]. The repo had 172 commits in the last 90 days [source]. His GitHub account dates from 2013 [source].
Inference: Gökay wrote about 43% of recent SteVe commits (74 of 172), so the project likely depends heavily on him.
Funding, revenue, customers, team size and Powerfill's founding date are not in the evidence.
Why now
The repo describes SteVe as "used by CPOs, manufacturers and developers worldwide" [source]. This is a self-reported claim, and no deployment count is given.
Inference: The OCA certification may remove a procurement barrier for enterprise charge-point operators, and the open-source user base may act as a sales funnel for Powerfill.
Unknowns
- Gökay's equity, his co-founder status, and the rest of the Powerfill team are not in the evidence.
- Paying customers and conversion from SteVe users are not in the evidence.
- SteVe's listed support stops at OCPP 1.6 [source]. Plans for OCPP 2.x are not in the evidence.
- The date of the certification is not in the evidence.
Questions for the room
- You wrote 74 of SteVe's 172 commits in the last 90 days. Who writes the rest, and what happens to SteVe and Powerfill if you step back?
- The README says SteVe is used by CPOs worldwide. How many deployments do you know of, and how many have become paying Powerfill customers?
- Your certification covers OCPP 1.6. When will you support 2.x, and have any customers made it a requirement?
What would move the Skoor
Paying-customer counts, a funding record, or a named co-founding team would raise it. Evidence that SteVe usage is not converting to Powerfill revenue, or that Gökay is not a founder, would lower it.