Solar Impulse Efficient Solution Label

The Eco-Solar project has received the “Solar Impulse Efficient Solution label”

Before being awarded the label, the project was assessed by independent experts with an eye to technological practicality, environmental and socio-economic benefits and profitability. The Solar Impulse Foundation ( wishes to present a portfolio of such solutions to decision-makers, to encourage them to adopt much more ambitious environmental goals and energy policies.


Recycling and reuse potential of NICE-PV modules presentation at WPSEC on the 11th of June 2018

The presentation will show results from WP4 (Module design for remanufacturing) of the project, in particular on the disassembly of NICE PV Modules from Apollon Solar into their major components, focussing on glasses and copper tabs. The fact that these components can be recovered as entire pieces opens up a more sustainable and high value recycling and reuse potential. Partners involved with this work are: Apollon Solar, AIMEN, bifa, INGESEA, Solitek.

Title: Recycling and reuse potential of NICE-PV modules
Time: Monday, 11th of June 2018, 3:30pm

Workshop summary “How to create value from PV waste” which was held on the 10th of April in Munich, Germany including presentations

Eco-Solar organised this workshop in cooperation with the H2020 project CABRISS.

During the workshop, 35 participants from industry and institutes lively discussed the valorisation potential of 8 different kinds of waste selected from the value chain of photovoltaic production. Several creative solutions were identified and collected on canvas. Some groups already agreed on follow up meetings to elaborate deeper on cooperation potential to market the wastes.

Read more…

April 10th 2018: Workshop on how to create value from PV waste invitation

The H2020-funded Eco-Solar project is organising a  workshop to discuss how to create value from PV waste.

The event will take place on April 10th, 10h – 16.00h in Maritim Hotel Munich (near the main train station).

At this workshop, we would like to discuss how to retarget waste streams from the solar value chain into valuable products.

  • possible buyers of the selected waste-streams
  • potential sellers of the selected waste-streams
  • potential technology providers that can turn the waste stream into economically viable products
  • recyclers of PV modules

We will create separate discussion groups, on the following topics:

  • Kerff-recycling
  • Quartz re-use / recycling
  • Graphite re-use
  • Defect / broken cells
  • Polymer materials for PV
  • Glass
  • Metal recycling

We have limited space available for participant in order to encourage lively and constructive discussions, therefore participation is on invitation only but if you are interested and haven’t received an invite yet, please email us with information about yourself and why you are interested in this workshop,  to


Eco-Solar partners at EUPVSEC 25 – 29 Sept. 2017 RAI Convention & Exhibition Centre, Amsterdam, The Netherlands

The EU PVSEC 2017, the 33rd edition of the European Photovoltaic Energy Conference and Exhibition, offers you an excellent opportunity to absorb, update and discuss the most recent and relevant developments in photovoltaics. This world class event is held at the RAI Convention Center in Amsterdam, the Netherlands, from 25-29 September 2017.

Please check the program for the total EUPVSEC.

Several partners of the Eco-Solar consortium will be presenting at the conference:

Wednesday, 27.9., 13:30 – 15:00

Low Recombination Emitter Profile with In-Situ Oxide Passivation for Multi-Crystalline Solar Cells
F. Buchholz, P. Preis, S. Eisert & E. Wefringhaus ISC Konstanz, Germany  J. Denafas & V. Cyras Soli Tek R&D, Vilnius, Lithuania
M.P. Bellmann
SINTEF, Trondheim, Norway


Tuesday, 26th September 2017 08:30-10:00

Eco-Solar Factory: Multicrystalline Silicon Ingot Crystallisation from Reusable Silicon Nitride Crucibles, oral presentation session silicon crystallisation 2BO.1.

by Martin Bellmann.


Nanotechnology & advanced materials workshop, 23 June, Malta

23 June 2017, Valletta, Malta
NAMEC Workshop: Nanotechnology & advanced materials for the Energy Union – Going circular

Advanced materials are key to tackle climate change, Energy Union and re-industrialization in Europe.
On the other hand, a large-scale transition towards circular economy is urgently needed in order to
avoid the depletion of raw material resources and reduce the impact of human activity on the
environment. This workshop aims at providing some insights from both industry stakeholders and
research organizations on how Europe is addressing the challenge of circular economy from the
perspective of clean energy materials.

Read more…

Eco-Solar and CABRISS joint workshop 8th of June 2017

Eco-Solar and CABRISS are organising a joint-workshop to present recent results on new solutions for a PV circular economy. The workshop takes place during the Freiberg Silicon Days within the Freiberg University Forum on Thursday the 8th of June 2017.

Recycling, reuse and resource efficiency:

  • New solutions for a PV circular economy
  • Results from the projects CABRISS and ECOSOLAR.

For more information, please click this link.

Update reuse of silicon nitride crucible

Multicrystalline silicon is the dominant material used in photovoltaic technology for production of low-cost solar cells. Solar cells made of multicrystalline material make up a little over half of the worldwide solar cell market. The starting material is crystallised in fused silica melt containers and the obtained ingots are sliced into thin wafers to make solar cells.

Since silicon at high temperature reacts easily with almost everything, and due to purity and mechanical requirements, manufactures are restricted to very few crucibles materials. Therefore, fused silica and fused quartz glass remains the material of choice for crucible and mould applications because it is readily available in high purity form and little reactive to liquid silicon.

Read more…

Update argon recycling

In the production of silicon ingots, argon is used as a purge gas to remove contaminants during ingot crystallisation. Gaseous impurities, if not removed, can react with the molten silicon leading to particle precipitation and contamination of the material. The argon purity, suggested for PV-manufactures, has to meet the Semi standard (PV6-1110), i.e. 99.999%. For a process cycle which last ~50 hours, typically 20-40 Nl/min argon gas is consumed and after passing through the furnace the argon is vented to the atmosphere. Read more…