ISO 25745-1:2023

Overview

ISO 25745-1:2023 - Energy performance of lifts, escalators and moving walks - Part 1: Energy measurement and verification describes standardized methods to measure actual energy consumption and to carry out periodic energy verification checks for individual lifts, escalators and moving walks. The standard focuses exclusively on the operational phase of the equipment life cycle and is intended to support reliable energy accounting, regulatory compliance and performance benchmarking.

Key topics and technical requirements

The standard provides practical guidance on how to perform repeatable energy measurements and verification checks. Major technical topics include:

• Measurement scope - single-unit measurement of energy consumption for lifts, escalators and moving walks during operation.
• Measurement planning - instrumentation selection, accuracy requirements, test setup and measurement coupling points.
• Measurement procedures - step-by-step methods for:
  • Lifts: main energy (running, idle, standby) and ancillary energy (lighting, fans, other ancillary circuits) measurement and verification.
  • Escalators and moving walks: main power in running, standby, autostart, slow-speed and no-load conditions, plus ancillary equipment power (e.g., comb plate/step gap lighting and traffic lights).
• Verification checks - periodic on-site checks using current or power measurements to confirm ongoing energy performance.
• Reporting - prescribed reporting elements to document measurement conditions, results and comparisons for lifts, escalators and moving walks.

Important exclusions are explicitly listed so users know what is not covered:

• For lifts: hoistway lighting, HVAC (including car fans), machine-room services, building-management systems, group-dispatch effects, power sockets and alternative energy storage systems.
• For escalators/moving walks: ancillary lighting (except comb/step-gap/traffic light), heating/cooling and emergency battery/alarm devices.

Practical applications and who uses it

ISO 25745-1:2023 is designed for stakeholders who need accurate, auditable energy data:

• Building owners and developers verifying energy usage and supporting building energy performance certifications.
• Facility managers and maintenance providers conducting periodic energy verification and identifying efficiency improvements.
• Manufacturers and installers validating equipment energy performance and demonstrating compliance.
• Consultants and architects specifying equipment for low-energy buildings.
• Regulators and utilities setting or enforcing jurisdictional energy performance requirements.

The standard supports consistent energy measurement and verification practices for benchmarking, tendering, retrofit evaluation, and regulatory reporting.

Related standards

• ISO 25745 series (other parts address energy calculation, classification and labelling across lifts, escalators and moving walks).
• Developed by ISO/TC 178 in cooperation with CEN/TC 10, aligning international and regional practices.

Keywords: ISO 25745-1:2023, energy measurement, energy verification, lifts, escalators, moving walks, energy consumption, measurement procedures, ancillary energy, reporting.