The back office behind EVolt’s charging station map: EVolt’s team manages every station, provider and charging socket in one place, and charging points on the EVolt network update live. MERCIL also designed an on-site system to control and monitor charging over OCPP.
2 min read
Live
status of every charging point, from the EVolt network
TH + EN
station names and addresses
OCPP
charge control designed for a site with no cloud
EVolt Technology runs an EV charging network in Thailand. Drivers charge through the EVolt app at stations in places such as offices, government centres, malls and restaurants, and find them on the station map on EVolt’s website.
The client's need
Drivers need to know where they can charge, whether a charger fits their car, whether it is free and what it costs. That only works if the stations behind the map are complete and current.
EVolt’s team needed one place to manage them: stations from its own live network, stations added by hand, and the providers, location types and charging sockets around them, in Thai and English.
A separate need followed: a site that wanted to charge cars on its own premises, with no cloud hosting, to set how much each car charges, know when it is done, and keep a record of every session.
How we fitted it
The back office reads each charging point’s live status from the EVolt network’s API, so available, busy and disconnected points update on their own. Stations that are not on the network are added by hand as static stations, so the map can show both, and every station has a switch for whether it appears on the map.
For on-site charging, we designed a standalone system: a server on the premises that talks to every charger over OCPP, the open standard chargers use, with no dependency on the cloud. It is built from open-source parts in Docker containers on Linux, with a PoE switch and a UPS so it keeps running.
What we built
Outcome
EVolt’s team
Every station in one place
Network stations update on their own; the rest are added and edited in the back office.
Drivers
A map they can rely on
Current status, sockets, fees and hours for each station on EVolt’s map.
On-site charging
Control without the cloud
A design for charging every car to a set target, with a record of each session.
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