Solid State Lighting: Review of Health Effects
This report offers a comprehensive review of the scientific knowledge acquired in the course of the last ten years on the effects of solid state light on human health.
Digitalisation in electric motor systems – Part I: Findings for policy makers
This report summarises EMSA’s research on the digitalisation of electric motor systems between 2021 – 2024. It formulates nine recommendations for policy makers on how to advance digitalisation in motor systems.
Policy development on energy efficiency of data centres
For data centre energy efficiency, this report provides: overview of data collection/registration projects, overview of current/planned government measures, quantitative estimates of savings from possible measures, and issues for policy makers to consider.
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 – Round Robin for Variable Speed Drives
This Policy Brief summarises the key findings of the international Round Robin for Variable Speed Drives.
Policies for Data Centre Energy Efficiency: Scope, Trends and Availability of Data
This report proposes a definition and characterisation of data centres, presents trends in their energy use, and analyses the availability of data which might be used as inputs to energy efficiency metrics.
Smart Lighting – New Features Impacting Energy Consumption
Smart lamps and luminaires are common in today’s lighting market. Smart lighting provides an opportunity for the consumer to benefit from wireless control of lighting products, e.g. by dimming, colour tuning and scheduling. These functions can provide energy saving but they also require energy consumption to supply standby power and gateways.
Mobile Device Efficiency
This report analyses the energy use of mobile devices, compares policies and identifies policy gaps.
Energy Efficiency Metrics for Data Centres
This study explores the existing metrics for data centre efficiency, and identifies which metric(s) might be suited for use by policy makers.
SSL Quality and Performance Requirements
The 4E SSL Annex has published its new and updated “quality and performance requirements” for the most popular LED lamps and luminaires.
Progressing Energy Efficiency Policies for Systems
Systems are described as the next frontier for energy efficiency policy, offering the potential to unlock huge energy savings in equipment-based energy-using systems.
In this summary we highlight some of the key findings from 4E’s investigations over several years.
4E PEET Status of Electric Motor Regulations 2022 (Updated December 2022)
Update of energy efficiency regulations and trends in 4E economies
4E PEET Status of Room Air Conditioner Regulations 2022
Update of energy efficiency regulations and trends in 4E economies
4E PEET Status of Television and Displays Regulations 2022
Update of energy efficiency policy measures and trends in 4E economies
4E PEET Status of Domestic Refrigerator Regulations 2022
Update of energy efficiency regulations and trends in 4E economies
Policy Brief – Small Network Equipment
Provides policy considerations for improving the energy efficiency of small network equipment such as modems, routers, network extenders, etc.
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 […]
Data Centre and Server ‘Idle Coefficients’
This report presents information on novel data centre KPIs: the Server Idle coefficient and the Data Centre Idle Coefficient.
Policy Brief – Policy Guidance for Energy Smart Digital Devices
Provides policy guidance for encouraging the development of consumer devices which are capable of ‘energy smart digital functionality’.
Small Network Equipment: Considerations for Energy Efficiency Policy
This report provides an overview of small network equipment (e.g. routers and modems), investigates options for policies and estimates the potential for energy savings.