Case Study · Energy Sector

EnergieSparModus24: Website and Customer Portal Increase Inquiries by 300%

How we built both website and customer portal for ESM24, an energy service provider from Leverkusen – a complete package that builds trust, digitalises processes and turns visitors directly into customers.

Live project preview
ESM24 Logo

EnergieSparModus24

esm24.de ↗

Duration

3 Months

Core Technology

Website + Customer Portal

Top Result

100 / 100

Live website preview

The final experience in motion instead of a static screenshot.

Performance and tracking view

Performance and tracking view

Measurability and portal logic were considered from the start, not added after launch.

Customer portal as a real product layer

Customer portal as a real product layer

The digital experience does not end after first contact, it continues inside the customer portal.

Starting Point

The Challenge: Missing Online Presence Slows Growth.

EnergieSparModus24 is an ambitious energy service provider in a growing market. But the company faced a key problem: there was neither a professional public web presence nor a digital area where existing customers could be served and processes could be bundled properly.

Potential new customers found no trust-building digital presence. At the same time, existing customers lacked a portal for documents, service requests and recurring interactions. This exact gap between acquisition and customer service was slowing down growth.

  • No professional web presence in place
  • No visibility in Google searches
  • No digital portal for existing customers
  • Service processes were not handled centrally online
"

"We are absolutely thrilled with the collaboration. Our website is not only a real visual highlight, but also technically flawless, fast, clean and thought through down to the smallest detail. Communication was always friendly, transparent and incredibly professional. Change requests were implemented immediately and we felt very well taken care of throughout the entire project. A huge thank you to the team – absolute recommendation."

ESM24

EnergieSparModus24

Management

Industry & Context

Industry

Energy Services

Market

B2C & B2B

Region

Germany

Project Type

Website + Customer Portal

Our Approach

Away from Standard Design, Towards Digital Identity.

Three strategic levers that turned a simple idea into a connected system of website, customer portal and measurable service quality.

01

UX Strategy: The Energy Customer Journey

We designed not only the public website journey, but also the post-contact customer journey. The result was a setup of trust-building website and functional customer portal that connects information, processes and self-service.

02

Tech Stack: Speed as a Ranking Factor

For the public-facing website we chose a high-performance lean frontend stack. In parallel, we built a customer portal that digitises internal logins, document access and recurring service processes.

03

Portal Logic: More Service After the Click

The customer portal turns a lead website into a real digital product. Existing customers can retrieve information, trigger processes and work with ESM24 more efficiently – without media breaks.

Visual proof

Website, portal access and clear information hierarchy work together as one system.

Commission overview for portal users

Commission overview in the customer portal

Portal users get a transparent overview of their commissions at a glance – clearly structured and accessible at any time.

Supply points and customer data in the portal

Portal overview of supply points and processes

Instead of fragmented information, customer data, supply points and service processes are centrally managed in one portal.

Before

  • No website
  • No Google ranking
  • No customer portal
  • No digital structure after initial contact

After

  • High-performance website (100/100)
  • Top visibility on Google
  • Digital customer portal for existing customers
  • Strong brand plus structured service process
Second Deliverable

Not just a website – also a complete customer portal.

Alongside the public website, we developed an interactive customer portal – a dedicated login area that delivers genuine digital value and automates internal processes.

portal.esm24.de / dashboard
ESM24 Customer Portal Dashboard

Analytics Dashboard

Real-time overview for management

portal.esm24.de / login
Login in customer portal

Two products. One collaboration.

Most agencies build a website – and that's it. We delivered both for ESM24: a professional public web presence and an internal customer portal that digitalises real operational processes and builds long-term customer loyalty.

Secure Login & Authentication

Customers receive individual access with secure authentication – protected, personalised and accessible via browser at any time.

Document & Contract Management

All contracts, invoices and relevant documents digitally organised – accessible without phone calls or email follow-ups.

Analytics Dashboard for ESM24

The internal dashboard gives management a clear overview of inquiries, activity and performance – in real time.

Self-Service for Existing Customers

Customers can independently submit requests, report changes and track their status – no waiting, no phone queues.

100 %

Digitalised

All customer processes fully mapped digitally

–80 %

Less effort

Automated document management and inquiry handling

24/7

Available

Customers use the portal anytime and anywhere

Business Impact

Why the Portal Made the Difference.

Enterprise-Ready

Portal as a Requirement

Several larger customers expected a structured, secure portal access before collaboration.

New Customer Segments

More B2B Potential

With website plus portal, ESM24 became more attractive to demanding business clients who expect digital workflows and clear access paths.

Professional Process

From Inquiry to Service

Documents, status and communication now run in a more digital and traceable way. That strengthens the professional impression in every project phase.

Competitive Advantage

More Than a Website

While many competitors only have a web presence, ESM24 combines public branding and an operational customer portal in one system.

"The project is not a closed chapter for us, but the starting point for continuous optimisation (Kaizen). Today, website and customer portal form the digital foundation on which ESM24 can keep growing."

— Kaizen Webworks