Combined heat and power plant chimney on open fields
Energy Industry - Motor

2× Analyst Efficiency: How Mälarenergi Scaled Predictive Maintenance with AI

By cutting through data overload and automating prioritization, Mälarenergi’s team doubled their diagnostic capacity without adding headcount.

2×

diagnostic capacity, without adding headcount

350+

wireless vibration sensors deployed

100+

machines monitored by 4 analysts

The story in brief

Mälarenergi, a major energy provider in Sweden, has transformed its maintenance approach by deploying over 350 pureMEMS wireless vibration sensors from MLT and pureSignal. With support from Viking Analytics’ AI platform, the team moved from manual checks to real-time, prioritized insights – saving time, reducing risk, and detecting faults earlier. In one case, AI flagged a bearing issue on a nearly new machine before failure. Now exploring technologies like the AI-driven lubrication system pureALUBE, Mälarenergi continues to set the standard for modern, data-driven maintenance.

Challenge

No visibility between manual checks

Solution

pureMEMS wireless sensors (MLT/pureSignal) + Viking Analytics AI

Result

Early bearing fault detected, more efficient workflows, scalable monitoring

One of the biggest benefits is that the technology picks up alerts well in advance. The fact that AI is continuously working, analyzing, and sorting different events to present patterns and trends saves us a lot of time.

Tommy Persson

Maintenance engineer with almost 30 years experience in vibration measurements and analysis

At a glance
Industry · asset

Energy Industry - Motor

Partner

MLT and pureSignal

Location

Combined heat and power plant, Västerås, Sweden

Monitoring setup

350+ pureMEMS wireless sensors on 100+ machines

Employees

774

Production

Electricity and district heating, Cooling, Water and sewage

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What MultiViz caught on a nearly new bearing that weekly readings would have missed

One of Mälarenergi's first wins was an early-stage bearing issue on an almost new machine. The PDF breaks down the alert step by step.

  • The acceleration RMS trend and the operating modes MultiViz grouped automatically
  • Four symptoms in the spectrum that justified a closer look
  • How the analysts now start every day in MultiViz
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  • Moving from weekly manual readings to 350+ wireless sensors
  • How the vibration analysts' role changed
  • Technical deep dive with MultiViz trends and spectra
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