EPE Paper – Policy measures to drive WBG for end use equipment

This paper discusses different potential policy measures to support the WBG uptake in end use equipment. The EU product regulations and specifically the potential PV inverter efficiency requirements, are discussed, serving as an example. Standardisation, in various fields (test methods for reliability and efficiency, rules for environmental footprint, modules and package architecture) and economic support […]

EPE Paper – Energy saving potential of WBG-commercial power converters in different applications

This work estimates the yearly global energy savings potential of different power electronics applications featuring commercial wide bandgap (WBG)-based power converters. It is the first study analyzing real products in the market. We show that WBG-based products exhibit considerable energy-saving potential in all investigated applications. Further, because of the large annual increase of installed photovoltaic […]

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. The efficiency of chargers was measured at different load conditions, and it was observed that the maximum efficiency occurred generally at […]

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 […]

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.

Policy Brief – Upstream Consequences from Connected Devices

Connecting devices to the internet has profound implications for energy use, in three areas: Digitalisation, Wasted Energy and Upstream Consequences. This policy brief covers the third topic – Upstream Consequences. This policy brief is based on two EDNA reports: Total Energy Model for Connected Devices and Intelligent Efficiency for Data Centres & Wide Area Networks

Huge energy-savings by WBG semiconductors

This is one of the latest articles published by the Swiss Federal Office of Energy (SFOE) related to wide bandgap technology, and its potential promising applications for SiC and GaN Semiconductors.

Total Energy Model for Connected Devices

The objective of this study is to develop a quantitative model of the “total energy use” of connected devices, globally. This report (and model) aims to quantify the total additional energy that results from devices becoming connected to a communications network