Easter weekend 2026. While the Netherlands enjoys a long weekend, a team at Enexis is working flat out on the migration of their IS-U system. After 25 years of loyal service, AIS in SAP R/3 is making way for the S/4HANA version.
A milestone
This wasn’t just a routine upgrade you can roll out in a flash. An IS-U system is the beating heart of an energy company. Billing, meter readings, contract management, customer communication, everything runs through this system. If it goes down, customers notice immediately.
That is why a migration of this scale requires months of preparation. Testing, retesting, running through scenarios, and preparing backups. And then executing it at a time when the impact is minimized.
In-depth IS-U expertise
Eric Otten, Martijn Lommens, Arjan van ‘t Hach, Jos Kroot, and Robbie Veenstra know the energy sector inside and out. They’re familiar not only with the technology, but also with the processes, laws, and regulations, as well as the billing flows. That expertise is indispensable for a project like this.
Together with Enexis, we spent months preparing for the migration. Which customizations need to be included? Which interfaces need to be adapted? How do you ensure that everything continues to work after the migration? These aren’t questions you can answer in just a few days.
The result
Enexis now has a future-proof IS-U system. It offers greater flexibility in billing options, is prepared for new developments in the energy market, and is built on the latest SAP technology.
A great result we’re proud of. This is exactly what our Utilities unit stands for: craftsmanship, collaboration, and solutions that keep working.
With energy, anything is possible
The energy sector continues to evolve. S/4HANA migrations, new billing models, smart meters, and the energy transition. Our IS-U specialists remain at the forefront, helping energy companies tackle these challenges.
Because with energy, anything is possible.
