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Modernization of KWKG accounting support software
Project duration: 1 year, 7 months
Brief description
Design and implementation of the modernization of an application for the processing of subsidy payments and charges within the framework of a law (combined heat and power). In the course of the transfer of the functionality and the inventory data into a modern architecture with modern technologies, the user-friendliness, maintainability and expandability are significantly improved. Existing processes can be run through even more efficiently. PTA is responsible for the conception, implementation and quality assurance.
Supplement
After around 15 years of use and (further) development, the existing software for preparing and supporting billing in accordance with the German Combined Heat and Power Act can no longer be expanded and maintained in an economically viable manner. Technologically, the new solution relies on a backend microservice architecture with a Microsoft SQL database with interfaces to various neighboring systems, as well as a micro-frontend/web app architecture (with Angular, HTML5, etc.). A secure connection between the frontend and backend was implemented via JWT and OAuth2, using Keycloak for authentication and authorization, and Swagger OpenAPI was used for API documentation and integration.
Subject description
The Combined Heat and Power Act (Kraft-Wärme-Kopplungsgesetz) requires the calculation and settlement of subsidy amounts, compensation payments, levies and equalization payments between different players in the energy market (distribution system operators (DSO), transmission system operators and distribution system customers). The underlying process basically consists of these steps: reporting of forecast values, preparation of (monthly) progress billings, reporting of actual values after year-end closing, and preparation of an annual peak billing. In detail, peculiarities of the respective context have to be taken into account (e.g., reports from DSOs have to be transferred from a portal and the calculation of the costs of the distribution network customers in the context of the takes place in a pre-system). In detail, the process may require corrections that can lead to cancellations.
IT project data
- Industries energy
- Specialist tasks accounting, billing, Continuous Integration, credit memo procedure, down payment, EEG/KWKG, forecast, invoicing, operative controlling, QS: Softwaretest, QS: Test automation, request for payment, Unit-Tests, Webservice
- DP tasks customised software new development
- System environments Internet/Intranet, multitier-architecture, organizational consulting, Service-Oriented Architecture (SOA), technical data processing
- Procedure model Scrum
- Programming languages Java
- Databases MS SQL Server
- Development and test tool Angular Schematics, Cypress, Jenkins, MS Visual Studio Code, Sonatype Nexus, SpiraTeam, Swagger/OpenAPI
- Standard software and BI NgRx
- System software Docker
- Middleware and frameworks Angular, KeyCloak, MS SQL Server Reporting Services (SSRS), RESTful Webservices, Spring Boot, Spring Cloud, Spring Security
Project period01.06.2022 - 31.12.2023
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