Volt Time
How Joulo connects a Volt Time charger through the Plugchoice backoffice, and which models carry a MID meter.
Volt Time chargers connect through Plugchoice. Plugchoice acquired Volt Time, and the Volt Time backoffice runs on the Plugchoice platform, so you authorise with Plugchoice OAuth.
At a glance
| Property | Value |
|---|---|
| Route | Cloud API through the operator |
| API | Plugchoice API v3, Volt Time backoffice |
| Authentication | OAuth 2.0 through Plugchoice |
| Sync | Every 15 minutes |
| MID detection | Per model, from the Joulo charger catalog |
| Backfill | Automatic, to 1 January 2026 |
How the connection works
The connect wizard routes Volt Time straight to the Plugchoice authorisation screen. From there the integration behaves exactly like a Plugchoice connection.
What Joulo reads
Sessions come per charge point, each with a start time, an end time and the metered energy.
MID certification
MID depends on the exact model, and the naming is easy to misread. The Business and Pro versions carry a built-in MID meter:
| Model | MID meter |
|---|---|
| Source 2 Business | Yes |
| Source 2s Business | Yes |
| One Business | Yes |
| One Pro | Yes |
| Two Pro | Yes |
| One | No |
| Source 2s | No |
| Source 2s Lite | No |
Check mid_certified on the charger object for the verdict Joulo actually holds for your unit.
Limitations
- The model string comes from the backoffice. A charger registered under a shortened name may land on an unknown verdict and go to review.
- The operator owns the OCPP connection, so the direct OCPP route is not available.