Understanding LED performance: Evidence-based approaches to supporting stakeholders of energy-efficient lighting programmes
The SSL Annex takes an evidence-based approach to evaluating LED product performance. Using comprehensive market data from product registries and other sources, the Annex developed recommendations on product performance and research into test methods that reduce the time and cost burden for government, industry and consumers. This paper highlights several activities that exemplify this evidence-based […]
Policy Brief – Coordination between IEC and ISO standards for efficient electric motor driven systems
This policy brief explains the significance of an ISO (International Organisation for Standardization) / IEC (International Electrotechnical Commission) Joint Advisory Group (JAG 22) established in October 2021.
Policy Guidelines for Motor Driven Units, Part 2 – Chinese
This report, available in Chinese, proposes policy options for the international alignment of technical standards and minimum energy performance standards for pumps, fans and compressors.
Policy Guidelines for Motor Driven Units, Part 1 – Chinese
This report, available in Chinese, describes existing standards and regulations for pumps, fans and compressors.
Measurement of temporal light modulation: improving calculation methods for stroboscopic effect visibility measure
The SSL Annex is conducting an Interlaboratory Comparison (IC 2022) on the measurement of temporal light modulation (TLM) from SSL products. In this context, uncertainty associated with SVM calculations must be minimised and remain consistent across a range of waveform measurement parameters (e.g., sampling frequency, duration) used in different systems. This presentation discusses two methods […]
Mobile Device Efficiency
This report analyses the energy use of mobile devices, compares policies and identifies policy gaps.
Interlaboratory Comparison for Goniophotometers (IC 2017)
The final report from the IEA 4E Solid State Lighting Annex’s 2017 Interlaboratory comparison (IC 2017). This comparison had 36 participating laboratories from 19 countries with a total of 42 goniophotometric instruments, the largest interlaboratory comparison of such equipment ever undertaken. This comparison investigated the level of agreement in measurements of SSL products by various […]
Controls Validation Method for Variable Speed Air Conditioners and Heat Pumps
This controls validation method aims to provide a uniform method of test which will validate native control operation and performance criteria for residential air conditioners and heat pumps with variable speed compressors. This method is intended to be used as a confirmation against regulatory tests in which modulating component(s) are overridden.
AC/HP Test Methods 2.0: Phase 2 Findings Summary
This research aims to develop an internationally applicable load-based test method for variable capacity ACs and HPs and has 4 Phases. This report discusses the findings of Phase 2 (Investigative Testing of Key Issues), as well as the research team’s recommendations for Phase 3 work.
AC/HP Test Methods 2.0 – Phase 1 Findings Summary
Air conditioner (AC) / Heat Pumps (HP) Test Methods Project 2.0 – Phase 1 Findings Summary.
Domestic Air Conditioner Test Standards and Harmonization
This report is a comparative review of test procedures and efficiency metrics for room air conditioners across six countries, as well as the ISO standard. The findings of this report are intended to inform the efforts of policy makers to evaluate where greater consistency between test methods and metrics may be beneficial.
IC 2017 Nucleus Laboratory Comparison Report
Policy Brief – Policy Guidelines for Pumps, Fans and Compressors
This Policy Brief is based on studies by the IEA 4E Technology Collaboration Programme (4E TCP) into energy efficiency policy measures for pumps, fans and compressors, and the
Policy Brief – EMSA Overview 2019-2024
The 4E Electric Motor Systems Annex (EMSA) promotes the opportunities for energy efficiency in motor systems by disseminating best practice information worldwide. It supports the development of internationally aligned technical standards and
Policy Guidelines for Motor Driven Units – Part 2
This Policy Guideline proposes policy options for the inter-national alignment of technical standards and minimum energy performance standards (MEPS) for pump, fan and compressor Motor Driven
Interlaboratory Comparison 2017 Technical Protocol version 1.0
This document describes the technical protocol used by the participating laboratories as well as by Nucleus Laboratories.
Benchmarking Report for Domestic Gas and Electric, Storage, Instantaneous and Heat Pump Water Heaters
This Benchmarking Report seeks to compare the performance of storage, instantaneous and heat pump water heaters available in a number of national markets by type, between type and by energy source
4E EMSA Policy Guidelines for Motor Driven Units – Part 1 Summary
This document summarises the first part of an investigation into policy options for harmonising standards and regulations for Motor Driven Units (MDUs), focusing on pumps, fans and compressors. Part 1 describes existing standards and regulations for MDUs in economies that account for 85% of global motor system electricity use.
Policy Guidelines for Motor Driven Units – Part 1
This Policy Guideline investigates policy options for harmonising standards and regulations for Motor Driven Units (MDUs) in two parts. This report (Part 1) describes existing standards and regulations
Development of Conversion Factors and Overall Approach for International Comparisons of Water Heaters
The analysis of the energy performance of water heaters is the first time the IEA 4E Mapping and Benchmarking activities have
