DC Wallbox Pre Scoping Study

The 4E PECTA DC-Wallbox pre-scoping study aims to enhance understanding of DC-Wallboxes and pro-vides an overview of the current DC charging market, emphasizing the efficiencies of commercially avail-able chargers across different power levels.

Analysis and Loss Measurements of WBG-Based Devices

Commercial power supplies with wide-bandgap (WBG) Technology promise enhanced efficiency. PECTA analyzes WBG-based devices, supported by Swiss research, focusing on measurement concepts, loss assessments, and a deep understanding of the WBG device benefits.

Application Readiness Map for Wide Bandgap (WBG) Semiconductors

The Power Electronic Conversion Technology Annex (PECTA) Application Readiness Map for Wide Bandgap (WBG) Semiconductors describes their expected market position through 2035. It is based on interviews with many experts and various roadmaps and could be used as a basis for deciding which power semiconductor technology to choose. This report presents an updated version and the underlying assumptions.

EPE Paper – Identifying the potential of SiC technology for PV inverters

Silicon Carbide (SiC) devices offer energy efficiency improvements over conventional silicon (Si) semiconductors. Through measurements and simulation results, this paper intends to quantify this efficiency improvement in a typical photovoltaic (PV) application. This allows designers and policy makers to better understand the benefits of SiC, enabling more informed decisions.

EPE Paper – Measurement of WBG-based power supplies

This paper discusses different measurement methods to evaluate the efficiency of WBG-based power supply solutions, including electrical measurement methods and their verification with calorimetric methods, and compares the performance of Si-based and GaN-based chargers.

EPE Paper – Looking beyond energy efficiency – Environmental aspects and impacts of WBG devices and applications over their life cycle

The environmental aspects and impacts of wide bandgap (WBG) materials such as Silicon Carbide (SiC) and Gallium Nitride (GaN) in specific end-use electronic applications and products have not yet been fully investigated. The design trade-offs and comparison of WBG with classic Silicon based technology for the same applications, with a life cycle thinking perspective, are only starting to emerge.

Design Aspects and Environmental Impacts of Wide Band Gap Based Semiconductor Technology in Chargers for Electronic Devices

This paper presents the outcomes of the work from PECTA Task B, Energy and environmental related Life Cycle Assessment, conducted between January 2022 and February 2023. See more information under: https://www.iea-4e.org/pecta/tasks/. This paper focuses on the effects of incorporating GaN components for energy conversion on the product design and the resulting environmental impacts along the […]

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.