BESS Automation Case Study

I'm looking for a comprehensive case study that showcases suitable PLC software platforms and training resources for the automation and optimization of Battery Energy Storage Systems (BESS). This project should highlight:

- Grid code compliance and DNO integration
- Importance of automation and optimization features
- Energy management and efficiency

Key components to cover:
- High-voltage switchgear
- Energy Management Systems (EMS)
- Power Plant Controllers (PPC)
- Balance of Plant (BoP) components

Technical requirements:
- SCADA/HMI integration
- IEC 61131-3 programming
- Protocol support for IEC 61850, MODBUS, and DNP3

The ideal freelancer should have:
- Experience in BESS, EMS, and grid integration
- Proficiency in relevant protocols and PLC programming
- Strong background in automation case studies

Please include real-world applications, challenges, and solutions in your work.