How to Reduce Energy Costs Using Data: Key Takeaways from Aquatherm 2026

At Aquatherm Prague 2026, one key message stood out:
The biggest energy savings today don’t come from new technologies, but from better use of data.

This was the focus of a presentation by Jan Denemark (FLOWBOX), who explained how to turn energy data into real savings—without limiting operations.

Watch the presentation

Why companies overpay for energy

Across FLOWBOX projects, the same issues appear repeatedly:

  • companies lack visibility into inefficiencies
  • they have energy data but don’t use it effectively
  • energy is managed reactively rather than proactively
  • there is no consumption forecasting or broader context

As a result, energy is not managed—it is simply billed.

Where the biggest energy savings come from

An energy bill is not just about total consumption.

Key factors include:

  • consumption profile over time
  • contracted capacity
  • energy purchasing model (spot vs fixed pricing)

The key is to manage when and how energy is consumed—not just how much.

The biggest savings? Often without investment

One of the strongest messages from the presentation was clear:
Energy savings are not primarily driven by new technologies, but by better management and smarter use of data.

Typical steps that lead to cost reduction:load profile optimization (peak shaving / peak shifting)

  • contracted capacity optimization
  • switching or optimizing energy purchasing models (spot vs fixed)
  • real-time anomaly detection

To achieve this, companies need:

  • detailed energy data (e.g. 15-minute intervals)
  • analytics and consumption forecasting
  • automated control of technologies and systems

In other words: smart energy management.

For example, data analysis can reveal unnecessarily high contracted capacity or inefficient operational settings—leading to immediate savings without additional investment.

What results can be achieved

Real FLOWBOX projects show:

  • up to 37% electricity savings
  • up to 62% water savings
  • up to 58% heat savings
  • typical ROI within 6–24 months

Key takeaway: What drives energy savings today

Monitoring alone is not enough. The key is active energy management.

Companies that achieve the greatest savings:

  • work with real-time data
  • forecast energy consumption
  • automate energy management

Want to find out your energy saving potential? Try the FLOWBOX energy maturity calculator