Roaming Tariffs

General information about tariffs in EV charging roaming:

• Roaming tariffs are owned and defined by the charging infrastructure operators (CPO).
• Roaming tariffs define charging expenses for the usage of the charging infrsatructure (energy, duration, parking, reservation, flat fee).
• CPO in roaming does not know the end customer (EV driver), as the customer is the subject of mobility service provider (MSP). Thus, Monetization is not utilized to charge these kinds of end customers.
• CPO side calculates the expenses for each session and provides charge detail record (CDR) to the mobility service provider (MSP).
• Mobility service providers (MSP) who have the end customers/drivers base, cannot change the CPO’s roaming tariffs. CPO provides the tariffs as informative and as the base for the charge details record breakdown.
• Tariffs are matched by validity (date and time). Recurrency modes are available in daily, weekly, one-time.
• Roaming tariffs apply for a charging infrastructure where they are being used (referenced).
• Roaming tariff applies for the third-party end customers for a roaming platform where the reference is assigned.
• Third-party roaming providers can use push and pull models to obtain tariffs. When roaming tariff is being managed, integrated roaming third-party platforms are also being notified about the updates.
• While home network roaming sessions are handled on Tridens EV Charge, expenses are calculated based on valid tariffs. Handling mid-session and at session completion.

Topics in this document:

• Define Roaming Tariffs
• Assign Roaming Tariffs to Charging Infrastructure
• Assign Roaming Tariffs to Roaming Platform

To access this section in EV Charge, from the Menu, click Roaming and then Roaming Tariff.

Roaming Tariff

Roaming tariff defines the pricing that applies for charging infrastructure�s roaming usage and contains tariff details which define prices for metric types (energy, charge time, park time, reservation, flat), recurrency policy and constraints.

To add or manage Roaming Tariffs, navigate to EV Charge and while in the Menu, click Roaming and select the Roaming Tariffs tab. By using the button to add the tariff, wizard form shows up.

Assign name, alphanumeric code, status and validity restrictions for the whole Roaming Tariff structure.

Add roaming tariff details with the date-time recurrence policy and assign the desired monetary prices for metric types of energy, charging time, parking time, reservation time, reservation flat or just a flat fee. Monetary prices are determined without VAT, meanwhile VAT needs to be entered in a separate field. Unpopulated value means 0 (zero) expense for such metric type.

Roaming Tariff:

• Defines validity restrictions for the whole tariff.
• Validity frames should not overlap.
• Provides transitions among the tariffs. E.g., one tariff stops on 2025-01-01 at 02:59:59 and the next one starts at 2025-01-01 03:00:00. Tariff element’s start/stop date and time attributes are optional. If no date-time restrictions are set, elements last indefinitely.
• Accumulates the tariff details.

Roaming Tariff Detail:

• Defines the schedules (recurring, one-time) and the cost at the moment when the schedule applies.

• Defines prices and VAT for kWh energy, reservation time, charging time, parking time, flat fee and flat reservation fee.

• Empty price means zero cost for the schedule.

Figure 1: Roaming Tariff Detail Configuration

Assign Roaming Tariff to Charging Infrastructure

Once Roaming Tariffs are configured, assign them on the charging infrastructure context, so the tariffs will apply in calculating the roaming expenses on the belonging chargers.

Tariffs can be set on Session settings of Site/Operator/Charger, where the lowest assigned level applies. The lowest level is Charger, so if Roaming Tariff is specified there, it overrides any tariff configurations on higher levels of Operator and Site.

To assign Roaming Tariff to the charging context, navigate to Site, Operator or Charger view and enter the wizard form. While managing the Session settings, there is a Roaming Tariffs selection where the desired tariffs can be picked to apply for the belonging charging sessions.

Assigning Roaming Tariffs to Roaming Platform

Once Roaming Tariffs are configured, assign them on the Roaming Platform context, so the tariffs will apply in calculating the roaming expenses for the events related to such roaming integration.

To assign Roaming Tariff to Roaming Platform, navigate to EV Charge and while in the Menu, click Roaming and select the Roaming Profiles tab. Select the desired Roaming Profile to see the Roaming Platforms. Select the platform and hit the Update button, so the wizard shows up. In the first step of wizard, find the Roaming Tariffs selection and pick the tariffs that are meant to apply for the sessions related to the specific roaming platform integration.