ZEV Property with one house

Strom

Electricity metering concept:

• If a consumer or producer has a fuse protection of less than 80A, a Telstar 80A 3-phase meter can be installed. If the fuse protection is greater than 80A, a Telstar CT 3-phase meter must be used.

• The balance meter is installed directly behind the counter of the DSO at the main house connection.

• All other meters (PV meter, general, heat pump, apartments, offices) must be located directly behind the balance meter. If the meters are to be billed, it is not permitted to nest them further. A typical metering concept error is the installation of the PV meter behind the general meter. If the electricity meters are further nested, it is not possible to bill the energy correctly.

• If a solar tariff is configured in smart-me Billing, care must be taken to ensure that a virtual meter is required, as this requires a license.

Intended use of the different meters:

• The balance meter ensures that you can implement the following requirements: Solar-optimized control of consumers, dynamic load management and visualizations. The balance meter is located directly behind the meter from the local energy supplier (HAK)

• The PV meter ensures that the solar energy can be distributed to all participants. Production and consumption are measured every 15 minutes and distributed to the consumers. Details can be found on the smart-me billing page.

• The general and heat pump (heating) meters are measured separately. This ensures that the energy costs can be shown individually. The energy costs can either be distributed among the parties on a percentage basis or they can be submitted as a whole to a property management company.

• Apartments / offices are metered in order to calculate the electricity costs.

E-mobility with Pico

E-mobility measurement concept with Pico:

• The Pico is installed either with or without e-mobility metering.

• The e-mobility outgoing metering is installed directly behind the balance meter, on the same hierarchical level as the apartment.

• All charging stations are installed directly behind the e-mobility outgoing meter via ribbon cable.

Intended use of the different meters:

• E-mobility outgoing metering is generally not required in small properties if fewer than 5-10 charging stations are installed. If this is not installed, the advantages of e-mobility outgoing metering mentioned below are not possible.

• E-mobility metering is installed in larger properties in order to determine the operating costs (standby) of the charging station. These arise because it is not permitted by law to charge them to the charging station.

• E-mobility metering is installed in order to use the node as a dynamic load management system with if/then actions

E-mobility with third-party charging stations

E-mobility measurement concept with third-party charging stations:

• E-mobility outgoing metering is mandatory.

• The e-mobility outgoing metering is installed directly behind the balance meter on the same hierarchical level as the apartment.

Intended use of the different meters:

• This meter ensures that electricity metering including e-mobility can be guaranteed by the same manufacturer.

• We recommend defining the e-mobility meter as a billing unit in billing so that the electricity costs can be calculated more easily.

• You can find more information under Use cases.

Multienergy

Multienergy metering concept

• M-Bus or LoRa meters are purchased from third-party companies and then connected to the M-Bus gateway by cable.
  Details can be found under the product M-Bus gateway or
  Details on LoRa gateway

• Each M-Bus or LoRa meter is considered a measuring point and therefore requires a license. 

• No license is required for the M-Bus Gateway, as it is only a data transmitter.

Intended use of the M-Bus Gateway:

• The M-Bus Gateway ensures that the data is stored in the desired format in the smart-me Cloud.

Licenses

Each measuring point requires a license, under specific circumstances one or two additional licenses are required. Details on licenses. 

Every M-Bus meter that is not deactivated is considered a metering point and therefore also requires a license.

The M-Bus gateway is considered a data transmitter. For this reason, it is exempt from license costs.