“★★★★★
“The PoC was deliberately challenging and demonstrated that we can scale at platform level with Mendix.”
HE
Heiko Exner, Project Manager IBA, enercity Netz
Reference
enercity
Customer Success.
From proof of concept to a scalable digital platform: a growing portfolio of core applications, self-service tools and sales solutions, built on a multi-app architecture, firmly embedded within the organisation and continuously expandable.
Dev & Consulting 
Network & Customers 
enercity Sales & PartnersSuccess Story
Success Story
When enercity was looking for a powerful low-code platform for its future IT strategy, it deliberately opted for a real-world stress test rather than a theoretical comparison. In 2023, the Commissioning Portal (IBA) was developed in collaboration with d.u.h.Group – a highly complex, production-ready core application for managing all meter movements within the network area. The success set the tone: Mendix was established as a group-wide platform and the foundation for a scalable multi-app architecture was laid.
In 2024, its capabilities became immediately apparent: with the Customer Self-Service (CSS) app, seven legally required click paths in accordance with Section 14a of the Energy Industry Act (EnWG) were digitally implemented within three weeks. At the same time, the vision of a central entry point took shape, leading to the launch of the enercity NetzPortal (eNP). PV Service and Digital House Connection went live in the same year.
A key driver was organisational commitment: enercity invested in its own Mendix team (Enablement & Scaling) as well as in dedicated roles such as project management and product owner for the eNP programme.
In 2025, the platform was further expanded to include, amongst other things, the sales partner portal (VPP), the district heating sales tool (FWV), the installer directory (IV 2.0) and services such as iMSys registration, PIN allocation and meter reading. The platform is not a completed project; it is continuously being developed and grows with every new solution.
What convinced enercity
“★★★★★
“We were able to implement regulatory requirements quickly and in a structured manner, without having to rebuild the platform from scratch every time.”
BE
Björn Ernst, Project Manager, eNP, enercity Netz
“★★★★★
“Traditional CRM systems weren’t capable of this, but low-code gave us the flexibility to develop exactly what we needed.”
LM
Leon March, Product Owner for District Heating, enercity AG
Use Cases & Apps
Use Cases & Apps
enercity Grid Portal (eNP)
enercity Network Portal (eNP)
Central entry point for customers & installers – services grow as platform building blocks.
enercity Network Portal (eNP)Portal base & central navigation for linked and integrated services. →
Commissioning Portal (IBA)Core application for managing all meter movements within the network area.
Customer Self-Service (CSS) Seven-step processes in accordance with Section 14a of the Energy Industry Act (EnWG) implemented in a short time.
PV Service: Digital service in the PV context – integrated into the platform.
Digital House Connection: End-to-end process – from application to processing.
Load more apps
iMSys registration: Self-service for registering smart metering systems.
PIN IssuanceDigital issuance and management steps as part of a standardised process.
Meter reading collection Collection and processing of meter readings as a platform service.
Controllable consumers (steuVE)New requirements as a scalable platform component.
Sales & Partner Processes
Sales & Partner Processes
Extension of the platform to include solutions for partner integration and sales workflows.
Sales Partner Portal (VPP)Centralised interface for the structured integration of sales partners.
District Heating Sales Tool (FWV) Digitalisation of sales processes in the district heating context.
Enablement & Scaling: Dedicated Mendix team + PL/PO setup for sustainable delivery within the eNP programme.
Would you like to find out more about our low-code development with Mendix?
We can support you in digitising your processes – with bespoke, scalable solutions that can be implemented quickly.