Research on Remelting and Purification of Si-kerf for PV wafers is part of CABRISS, a European collaboration aimed to develop a circular economy mainly for the photovoltaic but also other industries such as electronics or metallurgy.

During production of silicon wafers out of silicon (Si) ingots and wafers, about 40–50% of the material is lost due to the cutting technique. The research had kerf from slurry based wafer cuttings undergoing several refining steps and being remelted into ingots for PV-application.

Conclusion: With 10%  refined material, ingots were still directionally solidified, whereas with 100% refined material, they were not. The presented refining method does not allow for ingots with 100% refined material to be used as PV-material.

The project Recycling of broken Si based structures and solar cells is part of CABRISS, a European collaboration aimed to develop a circular economy mainly for the photovoltaic (PV), but also for other industries such as electronics or metallurgy.

The paper presents some tests in which broken solar cell structures coming from an early stage in the PV production process chain as well as broken finished solar cells have been recycled into new silicon (Si) feedstock through demetallisation, purification and directional solidification.

The paper explores two different routes to remove diffusion layers and anti-reflection coating (ARC) on broken cells. It also presents the characteristics of ingots produced with the Si-feedstock from the two routes by directional solidification.

For our future electricity system, a significant amount of wind and solar energy is required. In turn, these energy technologies require some specific critical metals. The current global supply of several critical metals is insufficient to guarantee a transition to a renewable energy system.

Calculations for The Netherlands show that additional wind turbines and photovoltaic panels already require a significant share of the annual global production of some critical metals.

This report outlines the magnitude of the issue and the complexity of the supply chain. It also identifies various paths towards solutions.

This factsheet on Metal Recycling developed by EuRIC highlights the importance of both ferrous and non-ferrous metal recycling and their substantial benefits for the environment and the economy in Europe. The Brochure outlines the environmental benefits, the economic and international trade aspects of steel, aluminium and copper recycling.

The Challenges, Opportunities and Pathways for European Business in Circular Economy report is a EUROCHAMBRES initiative launched in order to better understand if and how the circular economy will benefit European businesses, and to delineate a successful transition. This will be the basis for a policy strategy to contribute to an enriching debate on future legislative proposals at European level.

This report is a comprehensive meta-analysis of the most up-to-date quantitative studies on the circular economy, and elaborates on nine industrial sectors (agriculture, construction, mobility, hospitality and food services, metal manufacturing, electronics, textile, food & drink manufacturing, and plastics) including case studies. Bearing in mind the future of European manufacturing industries and businesses, the paper focuses on European trends derived from available data regarding investment costs, cost savings, and investment opportunities.

The EU faces multiple challenges (climate crisis, environmental disasters, a lack of competitiveness, falling behind in the digital race, etc.) that it will need to address if it is to ensure long-term sustainable prosperity for European citizens. At the same time, there are two ongoing transitions – the creation of a circular economy and the digital transformation – that could provide the means to address these challenges, if they are managed well.

As the EU and national policymakers are making significant efforts to promote a circular economy on the one hand and a digital economy on the other, Annika Hedberg and Stefan Šipka, together with Johan Bjerkem, argue that it is time to align the agendas as a means to achieve greater sustainability and competitiveness.

This publication:

• demonstrates what digitalisation means in the context of a circular economy;
• considers what a greater focus on sustainability would mean for the digital transition;
• examines the role of the EU policy framework, tools and initiatives in steering a (digital) transition towards a (digital) circular economy and makes recommendations for EU institutions for the next five year.

It suggests that the EU must:

• think systemically, define a vision and act;
• provide an adequate governance framework and economic incentives for a (digital) transition to a (digital) circular economy;
• encourage collaboration across European society and economy as well as globally, and empower its citizens to contribute to the transition.

This Discussion Paper builds on the findings of the EPC’s "Digital Roadmap for a Circular Economy" project of 2017-19 and paves the way for a more extensive final study, scheduled to be published in the late autumn of 2019.

The project has been supported by Aalto University and the Natural Resources Institute Finland (Luke) (members of Helsinki EU Office), Central Denmark region, Climate-KIC, the Estonian Ministry of the Environment, Estonian Environment Investment Centre, HP, Orgalim, the province of Limburg, UL, Fondazione Cariplo and Cariplo Factory.