Welcome To The 4E Publications Area
2024 4E Annual Report
Read the 2024 Annual Report for the IEA Technology Collaboration Programme on Energy Efficient End-use Equipment (4E)
AC/HP Test Methods 2.0: Phase 4 Findings Summary
This report provides the results of a round-robin testing across multiple international laboratories to evaluate the reproducibility and representativeness of a new 4E TCP Test Method for Air conditioner/Heat Pump products to better reflect real life energy performance.
2023 4E Annual Report
Read the 2023 Annual Report for the IEA Technology Collaboration Programme on Energy Efficient End-use Equipment (4E)
2022 4E Annual Report
Read the 2022 Annual Report for the IEA Technology Collaboration Programme on Energy Efficient End-use Equipment (4E)
4E Evaluation Guidebook – Overview
Summary of the 4E Energy Efficiency Appliance and Equipment Standards and Labelling Programmes Evaluation Guidebook.
4E Evaluation Guidebook
The 4E Evaluation Guidebook is intended to assist impact evaluations of equipment energy efficiency standards and labelling (EES&L) programmes. It explains the methodologies that are proven to deliver robust and credible evaluations within five key steps.
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.
2021 4E Annual Report
Read the 2021 Annual Report for the IEA Technology Collaboration Programme on Energy Efficient End-use Equipment (4E)
Achievements of Energy Efficiency Appliance and Equipment Standards and Labelling Programmes: 2021 FULL Report
The complete 2021 report on the impact of standards and labelling programmes in countries around the world, drawing on nearly 400 published reports, studies and papers covering more than 100 products.
Achievements of Energy Efficiency Appliance and Equipment Standards and Labelling Programmes: 2021 SUMMARY Report
The 2021 summary report on the impact of standards and labelling programmes in countries around the world.
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.
2020 4E Annual Report
Read the 2020 Annual Report for the IEA Technology Collaboration Programme on Energy Efficient End-use Equipment (4E)
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.
“Bright Spark” Newsletter Issue 14
Read the latest energy efficiency, events and current topics in Issue 14 of 4E Bright Spark Newsletter
2019 4E Annual Report
Read the 2019 Annual Report for the IEA Technology Collaboration Programme on Energy Efficient End-use Equipment (4E).
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.
2018 4E Annual Report
Read the 2018 Annual Report for the IEA Technology Collaboration Programme on Energy Efficient End-use Equipment (4E)
Effectiveness of Energy Efficiency Voluntary Agreements
The 4E Technology Collaboration Program wants to gain more insight into the effectiveness of voluntary agreements (VAs) in improving the energy efficiency of appliances and equipment.
Policy Brief – Voluntary Agreements
Voluntary Agreements (VAs) are one type of policy measure used by governments to stimulate the development and uptake of energy efficiency appliances and equipment. This Policy Brief focuses mainly on VAs made between a government and industry actors, where industry has taken the initiative.
