Besides the passion for piano and musical composition, I always felt the fascination for the creative process of R&D. I love to walk through the complete design process and study every single step to build a complete product from scratch. Let me introduce GRNRG (=Greenergy), a complete, easy to use and install, brand-neutral, AI driven private housing EMS system. It controls inverters, home batteries, car chargers and even wireless outlets. It makes decisions based on the smart meter port, AI predictions and every measurement that's made.GRNRG was created using following techniques:- PCB design using KiCad (Raspberry Pi CM4 Breakout board)- Debian OS development- AWS Cloud Infrastructure (Greengrass v2, IoT, S3, Amplify, Cognito, Cloudformation)- Single code base (web)App development (Typescript, NodeJS)- A lot of coffee and enthusiasm