New website for E.ON, an energy supplier serving 1.5 million customers

E.ON, one of the largest energy suppliers in the Czech Republic, needed a main website capable of attracting and guiding both new and existing customers in a market where competition is constantly increasing and customers expect a fast, digital customer experience. With the previous solution, E.ON was tied to a single implementation partner whose development speed and approach to problem-solving did not meet its expectations.

The solution needed to do more than present the brand; it also had to support real business functions: integrating E.ON’s internal systems and third-party systems, managing leads for new customers, personalising content and providing service support under a 24/7 SLA. An energy supplier serving 1.5 million customers cannot afford to operate without these capabilities.

We built E.ON’s main website using the ASP.NET Core 6 framework and Kentico 13, with 130 different editable widgets. This enables editors to quickly publish their work on a fully responsive website, without relying on the development team for every minor adjustment.

The solution includes CRM integration, an advanced Google Analytics 4 implementation for measuring customer behaviour and managing leads, and hosting on Microsoft Azure Cloud, designed as a scalable infrastructure. This is essential for a website that must handle the operations of an energy supplier serving 1.5 million customers. Using Azure CV, images are automatically cropped around the point of interest and converted to WebP, speeding up page loading without manual work for editors.

Because E.ON had previously encountered the limitations of a single implementation partner, we built the solution on the Kentico platform, which is developed globally by more than 500 agencies. This gives E.ON long-term assurance that it is not dependent on us alone.