# Business Impact Analysis of AMM Data: A Case Study
## 3 Analysis of AMM Data
### The Aggregation Principle  
With AMM, the EMO measures data for production and consumption. Within the balance sheet, EMO then carries out post-aggregation, a process whereby deviations from the agreed values are calculated for the balance sheet groups of each settlement entity. These calculations are then used as the basis for the settlement of the deviations. This root-and-branch accounting is not only a legislative obligation, but, in the context of the AMM system and its integration into the overall Smart Grid system, has a direct impact on the end customer, where it influences their behavior in terms of electricity ownership and use, enables the distributor to personalize consumption offers, and ultimately increases the impact of the efficient use of electricity for small consumers by offering not only an instant overview of consumption and costs, but also the opportunity to adjust their behavior in terms of planning consumption for moments of surplus and offering savings in moments of high consumption and possible electricity shortages in the grid. The whole system then maintains the basic physical principles and saves transmission and distribution network costs by educating consumers. The clearing entity deviation is defined as the difference between the actual supply and actual consumption of electricity on the one hand and the total agreed supply and total agreed consumption of electricity on the other hand (1). Supply (generation) is always marked with a positive sign and consumption is marked with a negative sign. The deviation is always set in MWh with a resolution to three decimal places. \[\mathrm{V}_{CE}=E_{CE}^{actual}-E_{CE}^{contr} \tag{1}\]  
\(\mathrm{C}\mathrm{E}\mathrm{E}\mathrm{E}\mathrm{E}\mathrm{E}\mathrm{E} \mathrm{E}\mathrm{E}\mathrm{E}\mathrm{E}\mathrm{E}\mathrm{E}\mathrm{E}\mathrm{E} \mathrm{E}\mathrm{E}\mathrm{E}\mathrm{E}\mathrm{E}\mathrm{E}\mathrm{E}\mathrm{E }\mathrm{E}\mathrm{E}  
\[E_{CE}^{\text{\emph{actual}}}=\sum_{CTP\in CE}E_{\text{\emph{supplied},CE}}^{ \text{\emph{measured}}}-\sum_{CTP\in CE}E_{\text{\emph{extracted},CE}}^{\text{ \emph{measured}}} \tag{2}\]  
Index \(CTP\in CE\)- expresses the set of all _CTPs_ that the EMO has registered in the system to a particular clearing entity. \(E_{\text{\emph{supplied},CE}}^{\text{\emph{measured}}}\) resp. \(E_{\text{\emph{extracted},CE}}^{\text{\emph{measured}}}\)--the measured value of supply or extraction [MWh] in a given domestic CTP [MWh]; this value includes the positive or negative control energy that was actually produced/not produced/consumed and therefore must be measured. According to the legislation, the actual quantity of electricity in the clearing entity in a trading hour is the sum of the quantity of electricity based on the data obtained from measurements using type diagrams at the points of consumption or transmission of the clearing entity and at the point of consumption and transmission of the electricity market participants for which the clearing entity has assumed responsibility for the deviation (3). The contracted quantity of electricity should be the sum of the quantity of electricity contracted by that clearing entity, along with other clearing entities, in a given trading hour, including the quantity of the contracted control energy. \[E_{CE}^{\text{contracted}}=\sum_{ID\in CE}E_{\text{\emph{supplied},CE}}^{ \text{contracted}}-\sum_{ID\in CE}E_{\text{\emph{extracted},CE}}^{\text{ \emph{contracted}}}+\sum_{ID\in CE}E_{\text{\emph{imp},CE}}^{\text{ \emph{measured}}}-\sum_{ID\in CE}E_{\text{\emph{exp},CE}}^{\text{\emph{measured }}}+\sum_{ID\in CE}E_{\text{\emph{regulation},CE}}^{\text{\emph{measured}}} \tag{3}\]  
The index \(\Sigma_{ID\in CE}\) expresses the set of all execution diagrams negotiated by a given clearing entity (or market participants for which it has assumed deviation responsibility) with other clearing entities. \(E_{\text{\emph{supplied},CE}}^{\text{\emph{contracted}}}\) resp.