SAP IS-U & BRIM specialist for complex billing
Over 20 years of experience with energy suppliers, grid operators and Dutch Railways (NS). I bring structure to billing processes and guide migrations to S/4HANA Utilities. I also build AI agents and smart automations.
About me
I have been working in the energy and public transport sectors for more than 20 years. For energy suppliers such as Vattenfall, Essent, Engie and DONG Energy, and for grid operators Stedin and Alliander, where I work on S/4HANA Utilities migrations, data migration and grid congestion management.
At Dutch Railways (NS) I spent over six years implementing and supporting SAP BRIM: complex tariff structures in Convergent Charging, and settlement, invoicing and posting in Convergent Invoicing.
Alongside SAP, I am deeply involved in AI. On my own self-hosted AI stack I build agents and automations with n8n, Claude and ElevenLabs: from a personal assistant that manages my calendar, tasks and email by voice or chat, to a daily AI news briefing and my own knowledge base (RAG).
This combination of in-depth SAP expertise and hands-on AI experience makes me a versatile specialist.
What I offer
Interim SAP IS-U & BRIM consultant
Hands-on expertise in billing, settlement and invoicing for energy companies, grid operators and transport. From design and configuration to testing and support.
Migration to S/4HANA Utilities
Guiding the transition from IS-U to S/4HANA: data migration with EMIGALL, billing processes and a clean core architecture.
AI & automation
Practical AI agents and workflow automation with n8n, Claude and ElevenLabs, built on hands-on experience with my own self-hosted AI stack.
Latest from the AI blog (in Dutch)
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Elke dag AI-nieuws, automatisch samengevat en voorgelezen met mijn eigen stem
Hoe ik met n8n, Claude en ElevenLabs drie keer per dag een Nederlandse AI-nieuwsupdate krijg: automatisch verzameld, samengevat en voorgelezen met mijn eigen stem.
Expertise
SAP IS-U / S/4HANA Utilities: device management, meter reading and billing for utilities
S/4HANA Utilities migration: transition from IS-U to S/4HANA, with a clean core approach
Data migration: migration objects with EMIGALL, from design to conversion
Grid operator billing: settlement for small and large consumer connections
SAP BRIM & Convergent Invoicing: complex tariff structures, settlement and invoicing
FI-CA: Contract Accounts Receivable and Payable
AI & automation: AI agents, workflow automation (n8n), voice (ElevenLabs) and RAG knowledge bases
Clients
Alliander · Stedin · Dutch Railways (NS) · Vattenfall (Nuon) · Essent · Engie · DONG Energy · Royal FloraHolland
Contact
Interested in working together, or have a question about SAP IS-U, BRIM, S/4HANA Utilities or AI? Feel free to get in touch.