Upload function for delivery notes in the EEG Internet portal in preparation for settlement
Project duration: 5 months
Brief description
The EEG Internet portal enables all the participating business partners (distribution system operators and EltVUs) to report, in a structured and electronic form, the extensive information required by the transmission grid operators in order to implement the Renewable Energy Act (EEG) so that this information can then be processed securely and efficiently by the transmission grid operators. In particular, settlement of the statutory EEG feed-in subsidy is highly complex, as more than 3,000 different subsidy eligibilities are differentiated. The feed-ins to be settled for each subsidy eligibility must therefore be reported electronically by the distribution system operators before settlement, in the form of a delivery note. These delivery notes have to be uploaded, checked and evaluated via the EEG Internet portal.
Supplement
The EEG Internet portal is based on Java and consists of two components that exchange information exclusively using web services. The persistent data are then saved to an Oracle database via a persistence framework.
Subject description
The delivery notes are XML files that are validated on upload against the schema definition saved in the system (XSD). The content of these delivery notes is then subjected to specific content checks, some of which are highly complex. Uploading and checking the delivery note is a key component of the settlement process, and the portal provides significant help here. The invoices are recalculated within the portal with the help of the delivery note, in the form of a shadow settlement. This helps the distribution system operators to bill correctly and it is necessary as the invoices can consist of several thousand individual items, which each have to be summarized correctly to up to 5 totals items.