Integrating Variants of Feed-In into the Master Data Model for SAP S/4HANA Utilities in Germany

Customers who have feed-in installations, for example, a photovoltaic system, can use energy produced by themselves tax-free. Regarding measuring, a bidirectional meter that calculates the amount of energy fed into the grid and consumed from the grid, and a meter that measures the energy produced are used in this chapter. The amount of self-consumption is then determined by the difference between the total energy produced and the energy fed into the grid.

In this case, the DSO and MOS are in different SAP systems and have different views of the master data. The following figure describes a set up from the MOS view considering an MMDAll device installed in their MeLo installations with the option "not billing relevant". In the MaLo installations, those devices with the registers are installed as "billing-relevant" which are also installed in the DSO system as billing-relevant. In this case, MaLo installations don't have any billable contracts or generating units because the DSO in another system is responsible for billing consumption or feed-in. Settlement units are also not required since the settlement is not carried out. For meter operation service billing, MOS contracts assigned to the MaLo installations remain as indicated in DSO-MOS with MMD and SLP.

The service providers MOS, DSO, and TSO are allocated to the MaLo installations. Also, the consumption installation, which is MaLo 1, has the supplier in their services. Other parts such as the way installations are built, and the applicability of the load profile are the same as in DSO-MOS with MMD and SLP.

In this case, the DSO and MOS are in different SAP systems and have different views of the master data. The following figure describes a set up from the DSO view considering an MMDAll real devices are managed by the MOS in another system, so they are replaced by device info records, which are installed in the installations accordingly. Additional MOS contracts on MaLo installations are not necessary. Other parts such as supply scenarios in the MaLo and MeLo, the assignment of settlement and generating units, and the applicability of the load profile are the same as in DSO-MOS with MMD and SLP.

In this case, the DSO and MOS are in different SAP systems and have different views of the master data. The following figure describes a set up from the MOS view considering an IMS

Compared with DSO-MOS with IMS, the MaLo installations don't have any billable contracts or generating units because the DSO in another system is responsible for billing consumption or feed-in. Settlement units are also not required since the settlement is not carried out. The MOS contract assigned to the MaLo installation remains as indicated in DSO-MOS with IMSThe service providers MOS, DSO, and TSO are allocated to the MaLo installations. Also, the consumption installation, which is MaLo 1, has the supplier in their services. Other parts such as supply scenarios in the MaLo and MeLo, the configuration of metering instances, the way virtual registers are built, and the applicability of the load profile, are the same as in DSO-MOS with IMS.

In this case, the DSO and MOS are in different SAP systems and have different views of the master data. The following figure describes a set up from the DSO view considering an IMS

All real devices are managed by the MOS in another system, so they are replaced by device info records, which are installed in the installations accordingly. Also, MOS contracts on the MaLo installations and meter instances for the MeLo installations are not necessary. Other parts such as supply scenarios in the MaLo and MeLo, the configuration of metering instances for MaLo, the way virtual registers are built, and the applicability of the load profile, are the same as in DSO-MOS with IMS.

The energy generated by customers can be quoted and purchased not only by the DSO, but also by electricity suppliers. The MaLo in this case can be called a tranche, which is owned by the DSO or supplier. The total measurement of the generated energy is allocated to the tranches with an agreed-upon percentage between the DSO and supplier. Only the part belonging to the DSO is fed into the grid network. During market communication, a percentage of the purchase by the DSO or supplier has to be transmitted together with the ID of the MaLo or tranche.

The energy feed-in remains in the area network, which is consumed directly by customers in this area. It means that only an exchange of the energy amounts takes place in this case. As a result, an equilibrium in the grid system of the DSO can be reached. For commercial and accounting purposes, the generation meter and consumption meter must be installed in the consumption installation together. This chapter uses a bidirectional meter and a generation meter to describe this set up.

The power-to-heat set up has an installation with a heat pump, which is used to convert excess electricity generated by renewable energy sources into heat. Here, we use a normal consumption, feed-in, and heat pump to describe the power-to-heat set up.

In this case, the generated energy is consumed directly by consumers nearby rather than conducting into the public grid networks. For example, the energy can be offered to apartments, commercial spaces, or homeowner associations. Tenants can decide whether they use this electricity generated by renewable energy sources or normal energy from the public network. It is a set up with tenants who have different needs about using the landlord-to-tenant electricity supply. Precisely speaking, tenants assigned to MaLo 3 and 4 use the landlord-to-tenant electricity; the tenant assigned to MaLo 5 doesn't, but uses the energy supplied by a different supplier instead.

POSITIVE refers to a positive value. If the operation produces a negative value, the value is set to zero.