You must purchase a smart-me Professional meter licence to set up virtual tariffs.
Virtual tariffs allow you to define your own dynamic tariff model for energy billing. This can be used to distinguish between tenants drawing electricity from a solar installation or from the grid for their own consumption if merging of private energy consumption (tenant electricity) is used.
To configure the virtual tariffs, proceed as follows:
Log into the smart-me website
Click on Configuration in the top right-hand corner
Click on Configuration (at the top)
Create a property if you have not already done so. You will find more information about the setup under smart-me Billing
Select the property on the left. You will now see the configuration page for this property.
You will see all the virtual tariffs that have already been entered under Virtual tariffs. Click on Add.
Please note that all normal electricity tariffs must be deleted.
Now enter all virtual tariffs
Name: The name of the tariff is also displayed to the user (tenant)
Battery tariff: This can be used to charge for battery energy
Solar tariff: This can be used to charge for solar energy
Normal tariff: This is used to charge for the grid electricity. If required, this can also be divided into high and low tariff periods.
Solar or battery meter
For the solar and battery tariff, you must specify a meter that measures all consumers to which this energy is to be distributed. This can also be a virtual meter that totals all consumers (note that virtual meters require an additional licence).
Balance meter (optional)
A balance meter can optionally be specified for the solar tariff. If the balance meter is specified, the energy that is fed into the grid is taken into account when calculating the solar tariff. This means that for each 15 minutes, only the solar energy that was actually consumed in the building is distributed (energy available = PV production - grid feed-in).
Price/kWh: The price for this tariff
Valid from: The start date from which this tariff applies
Valid until: The end date for the validity of this tariff
You can define when this tariff is valid with an additional condition. This can be a time period (e.g. for high/low tariff) or any other condition. The condition must have been defined beforehand as an If/ Then action.
For the solar and battery tariff, we do not recommend specifying an additional condition.
Please note that at least one (normal) tariff must always be valid. Otherwise the consumed energy will not be charged.
When you have defined all tariffs, it is mandatory to click on "Recalculate". This calculates and activates all virtual tariffs. This process can take a few hours.
A new tile is now displayed in the default view of the residence folder. It specifies the meter readings for the virtual tariffs. Clicking on this tile will display the load profile for the virtual tariffs.
A special view for tenants is available for the virtual tariffs. This shows the current energy consumption (electricity) and the origin (solar or grid). In addition, the percentage origin of the energy is displayed in a bar.
Example: Billing and metering concept of an association for self-consumption (ZEV)
In a self-consumption community (tenant electricity), several parties join together and jointly use the solar electricity from the roof. With the help of virtual tariffs, the energy consumption is dynamically distributed among the tenants.
In a simple ZEV, all consumers (each flat and general electricity) are measured separately with one meter. Likewise, all producers (solar system, battery storage) are measured with one meter each. Ideally, the smart-me 3-phase meter is used for this.
smart-me can automatically allocate and charge the solar electricity to the tenants. A tenant always pays for the electricity that he has actually used. If a tenant uses more solar electricity, he is also charged for more solar electricity. smart-me calculates this completely automatically.
A house consists of two flats and a solar installation. The following tariffs are defined:
Solar power: 0.16 CHF / kWh
Mains power: 0.25 CHF / kWh
Tenant A is not often at home during the day and mainly uses grid electricity (in the evening):
Daily consumption: 6 kWh
Mains power: 90%
Tenant B tries to consume solar power as much as possible (consumers mainly run when the sun is shining):
Daily consumption: 6 kWh
Solar power: 70%
Mains power: 30%
Tenant A and tenant B have the same energy consumption. However, since tenant B uses more solar electricity, he benefits from the cheaper solar electricity tariff.
Costs Tenant A:
Solar power: 0.6 * 0.16 CHF = 0.096 CHF
Mains power: 5.4 * 0.25 CHF = 1.35 CHF
Total: 1.45 CHF
Costs Tenant B:
Solar power: 4.2 * 0.16 CHF = 0.672 CHF
Mains power: 1.8 * 0.25 CHF = 0.45 CHF
Total: 1.12 CHF