Glossary Updates12 new terms added to the glossaries · October 2, 2026, 22:44 CEST
AI TechDocKnowledge

Glossary · Automation fundamentals, platforms and components

Energy efficiency

German: Energieeffizienz

In engineering and energy management, energy efficiency is the ratio of useful output, such as products, services or performance, to the energy input needed to achieve it. ISO 50001 provides a framework for energy management systems.

  • Automation components
  • Standards

In one sentence

Energy efficiency means achieving the same output with less energy input, supported by energy management systems such as ISO 50001.

Example

A plant switches idle conveyors to standby after two minutes without product and cuts their energy use by a third.

How it applies

  • Engineering: Measures include efficient motors and drives, speed control instead of throttling, energy recovery and standby modes such as PROFIenergy.
  • Operation: Energy monitoring assigns consumption to machines and products so that improvements can be measured.
  • Documentation: Operating manuals should explain energy-saving modes and their effect on restart times. Where ecodesign or product passport rules require energy information, align documentation with the Digital product passport (DPP) data.
  • Maintenance: Leaks in compressed air systems are a frequent source of wasted energy and can be found with regular ultrasonic inspections.

Energy efficiency vs. efficiency

Efficiency (energy conversion) is the physical ratio of a single device. Energy efficiency is the system view: how much energy a machine, line or building needs for its output, including idle times and operating strategies.

By knowledge.aitechdoc.world · Published September 26, 2026 · Last reviewed

Source: AI TechDoc Knowledge editorial definition, based on ISO 50001 (energy management systems) and engineering practice

Definitions follow the cited standards and specifications. Where a source is a copyrighted publication, such as an ISO, IEC or EN standard, the definition is a close paraphrase, not a verbatim quotation, so as not to infringe copyright. We recommend reading the original publication. The sections “How it applies” are editorial commentary by AI TechDoc Knowledge and are not part of any standard.

Seen a mistake? Send us a note!